BrainStuff
By HowStuffWorks.com
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Podcast Description
Why is a popsicle called a quiescently frozen confection? Why can biting on aluminum foil be painful? Join Marshall Brain as he breaks down the everyday science in the world around us in BrainStuff, a podcast by HowStuffWorks.com.
| Name | Description | Released | Price | ||
|---|---|---|---|---|---|
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1 |
When you have an itch, what's happening under your skin? | Skin covers our bodies, so it's very easy for this delicate organ to get irritated. In this episode, Marshall explains why our bodies respond to irritants with an itching sensation -- and why we're programmed to scratch. | 2/9/12 | Free | View In iTunes |
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2 |
Why can biting on aluminum foil be painful? | When (dental) metal in your mouth comes in contact with aluminum foil, your teeth get a painful shock from the electricity produced. Marshall Brain explains how the voltaic effect plays out in your mouth in this episode. | 2/8/12 | Free | View In iTunes |
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3 |
Why is a popsicle called a quiescently frozen confection? | Popsicles are also called "quiescently frozen confections" because of the way they're frozen. Learn more about how flavored ice treats are made -- and what distinguishes them from ice cream -- in this episode. | 2/6/12 | Free | View In iTunes |
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4 |
How do people pull large objects with their teeth? | Have you ever seen those folks that can pull a whole truck with their teeth? Tune in as Marshall Brain explains the physics behind pulling large objects with your teeth in this episode. | 2/3/12 | Free | View In iTunes |
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5 |
How do polymer crystals work, and why do they absorb so much water? | Polymer crystals are extremely absorbent, and that's why you'll often find them in disposable diapers. Marshall explains how polymer crystals are able to absorb large quantities of liquids -- and keep you cool and dry -- in this episode. | 2/1/12 | Free | View In iTunes |
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6 |
To maximize happiness, what should you spend money on? | They say that money can't buy happiness, but it can definitely contribute to your well-being. So what exactly should you spend your money on to maximize your happiness? Stuff? Experiences? Marshall Brain investigates in this episode. | 1/30/12 | Free | View In iTunes |
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7 |
How does WikiLeaks work? | WikiLeaks is a controversial "not-for-profit media organization" that disseminates secret, leaked information to the public. But how exactly does this group work? And why does it exist? Marshall Brain takes a look at WikiLeaks in this episode. | 1/27/12 | Free | View In iTunes |
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8 |
Why is organic food more expensive than regular food? | You've probably noticed that organic foods cost significantly more than non-organic ones, but have you ever wondered why? In this episode, Marshall Brain explains how higher production costs and other factors lead to higher prices in the grocery store. | 1/25/12 | Free | View In iTunes |
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9 |
How can water cut through steel? | Waterjets are tools that use highly pressurized, focused streams of water to cut through metal and other solid materials. Learn more about waterjets in this episode. | 1/23/12 | Free | View In iTunes |
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10 |
How valuable is exercise to your health? | We all know that exercise is an important way to safeguard your health. But how, exactly? In this episode, Marshall discusses the health benefits of exercise -- and how much we need each week in order to take advantage of these benefits. | 1/20/12 | Free | View In iTunes |
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11 |
What is an IP address? | Every computer that's connected to the Internet has its own unique "address." Tune in as Marshall explains how IP addresses work ( and how many of them exist) in this episode. | 1/16/12 | Free | View In iTunes |
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12 |
Why can you hear the ocean in a seashell? | There are various theories about why you can hear ocean-like sounds when you hold a seashell up to your ear. Marshall Brain explains what you're probably hearing in that seashell -- and why you don't need a shell to hear it -- in this episode. | 1/13/12 | Free | View In iTunes |
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13 |
Why shouldn't you go swimming right after a meal? | As children, many of us have been admonished not to go swimming for at least an hour after eating. But, as it turns out, there's biology behind this commonplace advice. Tune in to this episode to find out why you shouldn't swim right after you eat. | 1/11/12 | Free | View In iTunes |
|
14 |
How can I recover a deleted file from my computer? | In many cases, it's possible to recover files that have been deleted by using your computer's Recycle Bin. Marshall Brain reveals ways to recover deleted files -- and how to erase them permanently -- in this episode. | 1/9/12 | Free | View In iTunes |
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15 |
How can we eliminate fossil fuels? | It's no secret that fossil fuels have a detrimental effect on the environment, but do feasible alternatives exist? In this episode, Marshall takes a look at the possibilities of DIY biofuel. | 1/6/12 | Free | View In iTunes |
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16 |
What are other ways to store energy besides batteries? | Batteries are a common way to store energy, but there are many others. Discover more energy storage techniques, from falling weights to fuel cells, in this podcast from HowStuffWorks.com. | 1/2/12 | Free | View In iTunes |
|
17 |
How does fusion power work? | Fusion reactors like the sun produce huge amounts of energy, so why aren't there fusion power plants everywhere? In this episode, Marshall explains the chemistry of fusion reactions and discusses how close fusion is to becoming a viable energy source. | 12/30/11 | Free | View In iTunes |
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18 |
Japan's Nuclear Problem | When the recent earthquake hit Japan, it seemed the country had withstood the worst of the blast -- until explosions occurred at a nuclear power plant. Is another disaster on the way? Tune in as Marshall explains the state of Japan's nuclear power plants. | 12/28/11 | Free | View In iTunes |
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19 |
How High-level Nuclear Waste Works | What exactly is high-level nuclear waste, and how are we dealing with it today? In this episode, Marshall breaks down the techniques used to store high-level nuclear waste. | 12/26/11 | Free | View In iTunes |
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20 |
What does a gigabyte of internet access really cost? | Internet service providers often tangle with customers who claim they're being ripped off -- but how much does a gigabyte of access actually cost? Join Marshall Brain as he breaks down the real cost of a gigabyte's worth of internet access. | 12/22/11 | Free | View In iTunes |
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21 |
Which 4G services are available in the U.S. today? | If you have a smart phone, you may be interested in 4G service for the data you receive. But which services are available, and which one will suit your needs? Listen in as Marshall Brain breaks down the differences between 4G services. | 12/21/11 | Free | View In iTunes |
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22 |
Why is a cell phone called a cell phone? | Cellular phone systems divide areas of coverage into "cells," hence the name. But how do they actually work? Listen in as Marshall Brain breaks down the nuts and bolts of cell phone systems in this episode. | 12/19/11 | Free | View In iTunes |
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23 |
What does a modern smart house look like? | What makes a "smart" house so smart? These high-tech houses intelligently use resources and are responsive to the needs and habits of their occupants. Tune in to learn more. | 12/16/11 | Free | View In iTunes |
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24 |
How does the oxygen sensor in a car work? | All new cars sport oxygen sensors that are designed to cut down emissions and keep the engine running smoothly. Find out exactly how these sensors work in this podcast from HowStuffWorks.com. | 12/14/11 | Free | View In iTunes |
|
25 |
How do motion sensors work? | There are many kinds of motion sensors, from active to passive systems. Get the scoop on how myriad motion sensing systems work in this podcast from HowStuffWorks.com. | 12/12/11 | Free | View In iTunes |
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26 |
How does a speedometer in an airplane work? | Most people are familiar with speedometers in cars, but do you know how air speed is determined? In this episode, Marshall explains how devices called pitot tubes gauge the speed of moving aircraft. | 12/9/11 | Free | View In iTunes |
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27 |
Why does lettuce stored in a bag stay fresh longer? | Many foods you'll find at the grocery store -- like lettuce, for example -- are stored in special plastic packaging called MAP that helps them stay fresh longer. Find out what MAP is, and how it keeps food fresh longer, in this episode of BrainStuff. | 12/7/11 | Free | View In iTunes |
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28 |
How do we measure sea level? | Sea level is an important measurement, but it's also a complicated one. Find out why in this episode of BrainStuff. | 12/5/11 | Free | View In iTunes |
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29 |
Why can I play some DVDs, but not others? | Film studios use regional code protection in DVD technology to protect content and to control worldwide release dates. Tune as Marshall Brain breaks down the concept of region codes in this podcast. | 12/2/11 | Free | View In iTunes |
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30 |
How do CD-R discs work? | Unlike a regular CD, a CD-R has a special dye layer that allows you to imprint data on it. Discover the mechanics of CD-R discs in this podcast from HowStuffWorks.com. | 11/30/11 | Free | View In iTunes |
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31 |
Is the sound on vinyl records better than on CDs? | The sound quality of vinyl records is sometimes better than that of CDs and DVDs -- and sometimes worse. Learn more about the difference between the sound quality of records, CDs and DVDs in this episode. | 11/28/11 | Free | View In iTunes |
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32 |
Why is cotton more absorbent than nylon? | When water comes in contact with the complex molecules that make up cotton and nylon, it causes a different action in each material -- but why? Listen in as Marshall Brain breaks down the science behind water absorption in this podcast. | 11/25/11 | Free | View In iTunes |
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33 |
Where does cork come from? | Most cork comes from special trees that grow in places near the Mediterranean Sea. Learn more about cork oak trees, cork properties, cork products and cork processing in this episode. | 11/23/11 | Free | View In iTunes |
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34 |
What is the difference between hardwood and softwood? | When it comes to differentiating between hardwoods and softwoods, it's not a matter of hardness or density -- it's all about plant reproduction. Marshall explains what angiosperms and gymnosperms are in this episode. | 11/21/11 | Free | View In iTunes |
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35 |
What does Pez mean? | Today, Pez candy dispensers are a sweet treat for children and a novelty for adults. Originally, however, they were created to help adults quit smoking. Learn more about the fascinating history of Pez in this podcast from HowStuffWorks.com. | 11/18/11 | Free | View In iTunes |
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36 |
Is chocolate poisonous to dogs? | Under the right conditions, chocolate can indeed be deadly for dogs. Tune in to learn more about the compound in chocolate that makes it dangerous for dogs (and how much is too much) in this podcast from HowStuffWorks.com. | 11/16/11 | Free | View In iTunes |
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37 |
How can there be seedless grapes? | Seedless grapes are the most common kind on the market, but have you ever wondered how a grape can be seedless? How does it grow? Discover how seedless grapes accidentally came about -- and how they grow -- in this podcast from HowStuffWorks.com. | 11/14/11 | Free | View In iTunes |
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38 |
Why doesn't gasoline burn cleanly? | Since gasoline is a liquid formed of carbon and hydrogen, it's possible to trace the chemical reactions in car exhaust and understand what types of pollutants are created by a car's engine. Tune in and learn more about the science behind burning gas. | 11/11/11 | Free | View In iTunes |
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39 |
How does an oxygen canister on an airplane work? | When you think of storing oxygen, metal tanks full of gas might come to mind. There's also a chemical method -- tune in to this podcast from HowStuffWorks.com to learn about how oxygen canisters work. | 11/9/11 | Free | View In iTunes |
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40 |
How does nitrous oxide help an engine perform better? | Nitrous oxide boosts engine power in two significant ways. Find out exactly how nitrous works its magic in this podcast from HowStuffWorks.com. | 11/7/11 | Free | View In iTunes |
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41 |
Why does your computer need a battery? | Computers have a small battery that's important because it keeps the machine's clock running -- and sometimes, your computer. Get the goods on computer batteries in this podcast from HowStuffWorks.com. | 11/2/11 | Free | View In iTunes |
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42 |
How did the moon get there? | The moon has orbited over human civilization since the dawn of time, but it took us thousands of years to figure out how it actually got there. Tune in as Marshall Brain examines the formation of the moon. | 10/31/11 | Free | View In iTunes |
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43 |
How many calories does a person need daily? | The amount of calories a person needs to consume on a daily basis varies by individual. Discover the three factors that can help you determine your daily caloric needs in this episode of BrainStuff. | 10/28/11 | Free | View In iTunes |
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44 |
What is the battery light on your car's dashboard for? | Cars rely on batteries to keep their electrical parts running and alternators to keep their batteries alive. Battery lights come into play when there's a charging problem. Find out more about battery lights in this podcast from HowStuffWorks.com. | 10/26/11 | Free | View In iTunes |
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45 |
How do self-driving cars work? | Self-driving cars seem like the stuff of science fiction, but they're closer to becoming reality than you might think. In this episode, Marshall breaks down the technology behind experimental self-driving cars. | 10/24/11 | Free | View In iTunes |
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46 |
How do photochromatic lenses work? | Photochromatic lenses darken when exposed to the sun. Discover where these lenses came from, how they work and why they're commonly referred to as "transition" lenses in this episode of BrainStuff. | 10/21/11 | Free | View In iTunes |
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47 |
Why does the moon look bigger when it's near the horizon? | When the moon is near the horizon, it appears to be much bigger than when it's high in the sky. But is it really larger? Tune in to find out. | 10/19/11 | Free | View In iTunes |
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48 |
How do the Northern Lights work? | The Northern Lights, also known as the aurora borealis, occur when charged electrons from the sun interact with the Earth's magnetic field. Learn more about auroras and solar activity in this episode. | 10/17/11 | Free | View In iTunes |
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49 |
What does "not guilty by reason of insanity" mean? | Claiming the "insanity defense" in fictional courts of law is common and seems pretty straightforward; in real life, it's much more rare and complex. Discover the legal definition of "insanity" -- and how it relates to mental illness -- in this episode. | 10/14/11 | Free | View In iTunes |
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50 |
What constitutes a person's IQ? | Your IQ, or intelligence quotient, is a reflection of how well you perform on a specific test that measures cognitive abilities. Learn more about IQ tests in this episode. | 10/12/11 | Free | View In iTunes |
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51 |
How the Nobel Prize Works | Nobel Prizes are highly prestigious, valuable awards that have been given out to visionaries and pioneers in select fields since 1901. Tune in to find out more about the Nobel Prize in this episode of BrainStuff. | 10/10/11 | Free | View In iTunes |
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52 |
How do British royal titles work? | In this episode of BrainStuff, Marshall Brain gives a detailed explanation of how British royal titles work. | 10/7/11 | Free | View In iTunes |
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53 |
How do plastics work? What is actually in a plastic? | Plastics have become so ubiquitous that we often take them for granted, but have you ever wondered where these popular materials come from? In this episode, Marshall explains the composition of plastic. | 10/5/11 | Free | View In iTunes |
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54 |
Why do they include jokers in a deck of playing cards? | The joker is an obscure and (according to some) useless addition to a deck of modern playing cards -- but it was originally a powerful card. Discover the history of the joker card and the modern card deck in this podcast from HowStuffWorks.com. | 10/3/11 | Free | View In iTunes |
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55 |
What is market capitalization? | If all the money in the US only totals 8 trillion dollars, how can the New York Stock Exchange have stocks valued at 26 trillion dollars? Tune in as Marshall Brain breaks down the practice of stock capitalization in this podcast from HowStuffWorks.com. | 9/30/11 | Free | View In iTunes |
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56 |
What is dynamite? How does it work? | Dynamite is a type of chemical explosive. Discover how explosives from gasoline to dynamite work in this episode of BrainStuff. | 9/28/11 | Free | View In iTunes |
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57 |
Why is dry ice dangerous? | Dry ice is different from regular ice in several ways. Find out what makes dry ice so unique -- and why it's so good for transporting perishables over long distances -- in this podcast from HowStuffWorks.com. | 9/26/11 | Free | View In iTunes |
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58 |
How do one-way mirrors work? | One-way mirrors are ubiquitous in crime dramas, but how do they work? Discover the secret behind one-way mirrors in this episode of BrainStuff. | 9/23/11 | Free | View In iTunes |
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59 |
What would happen if the polar ice caps melted? | Learn more about melting ice caps, global warming and rising sea levels in this episode of BrainStuff. | 9/21/11 | Free | View In iTunes |
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60 |
What makes your knuckles pop? | Learn more about the anatomy (and chemistry) behind that popping sound your knuckles make when you crack them in this episode of BrainStuff. | 9/19/11 | Free | View In iTunes |
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61 |
Should you turn your computer off when it's not in use? | When it comes to the question of whether or not you should turn off your computer when you're not using it, there's no simple answer. Tune in to get Marshall's thorough take on the topic in this podcast from HowStuffWorks.com. | 9/16/11 | Free | View In iTunes |
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62 |
How much sugar do they really put in soda? | Sodas and soft drinks contain a surprising amount of sugar -- more than you might expect. Tune in as Marshall Brain reveals how much sugar is in soda in this episode of BrainStuff. | 9/14/11 | Free | View In iTunes |
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63 |
Why doesn't paper money disintegrate in the washing machine? | Normal paper is made of cellulose from trees, but paper money is made from cotton and linen fibers. Learn how this makes paper money more water-resistant in this podcast from HowStuffWorks. | 9/12/11 | Free | View In iTunes |
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64 |
Why can't a couch potato run a marathon? | Intuitively, it makes sense that a trained athlete can run a marathon easily, while a "couch potato" can barely run a mile. But what's the biology behind it? Find out how fit and unfit bodies respond to exercise in this episode. | 9/9/11 | Free | View In iTunes |
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65 |
What is chewing gum made of? | Up until World War II, chewing gum was made of a substance called chicle. Check out this HowStuffWorks podcast to learn more about the ingredients of modern chewing gum. | 9/7/11 | Free | View In iTunes |
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66 |
How can a car get 100 MPG? | Created in the 1980s, the Avion is a car that can get more than 100 miles per gallon. In this episode, Marshall Brain talks about the factors that make the Avion so efficient -- and how the same techniques could be applied to production vehicles. | 9/5/11 | Free | View In iTunes |
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67 |
How Jelly, Jam and Preserves Work | Jam, jelly, and preserves are all made from fruit mixed with sugar and pectin. Jell-O, on the other hand, is completely different. Take a look at our HowStuffWorks article to learn more. | 9/2/11 | Free | View In iTunes |
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68 |
How do neon and fluorescent lights differ? | Neon and fluorescent lights differ in several ways, including bulb shape, color of light emitted and substances used to produce that light. Find out how neon and fluorescent lights work in this podcast from HowStuffWorks.com. | 8/31/11 | Free | View In iTunes |
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69 |
How do hopping cars work? | Lowriders are vehicles that ride very low to the ground and are often equipped with hydraulics systems that allow the cars to "hop." Learn more in this podcast from HowStuffWorks.com. | 8/29/11 | Free | View In iTunes |
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70 |
What happens when you press Alt and F4? | The alt-f4 key combination is a faster way to close a window on your computer. Learn more about this and several other keyboard shortcuts in this podcast from HowStuffWorks.com. | 8/26/11 | Free | View In iTunes |
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71 |
When I pay by check, where does that check go? | When you write a check to purchase goods and services, it passes through the hands of several banks before the process is complete. Marshall explains how checks are processed through intermediary banks in this episode. | 8/24/11 | Free | View In iTunes |
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72 |
Where's the best place to sit in a movie theater? | When it comes to where you should sit in a movie theater to get the best experience, it's mostly a matter of preference. Except when it comes to sound. Find out why -- and where you should sit -- in this episode. | 8/22/11 | Free | View In iTunes |
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73 |
What causes the smell after rain? | The smell of rain is often linked with spring, and it's been alluded to in poems, songs and stories for centuries. But what exactly causes this distinctive smell? Tune in and find out. | 8/19/11 | Free | View In iTunes |
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74 |
What do the symbols on the U.S. one-dollar bill mean? | If you've ever looked carefully at a U.S. one-dollar bill, you've probably noticed some mysterious symbols and Latin phrases. What do these symbols stand for? Why are they on there? Marshall Brain breaks it down for you in this episode. | 8/17/11 | Free | View In iTunes |
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75 |
Why is bamboo suddenly appearing in so many products? | Nowadays bamboo is used to make all sorts of products, from flooring and furniture to bicycle frames. In this episode, Marshall explains why bamboo is becoming so popular -- and the advantages of using it to create consumer goods. | 8/15/11 | Free | View In iTunes |
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76 |
How Flatulence Works | Learn about the causes of gas -- and not the kind you put in your car -- in this podcast from Marshall Brain. | 8/12/11 | Free | View In iTunes |
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77 |
Why do limbs fall asleep? | Pressure on nerves can cause the nerves to stop sending impulses to the brain, causing limbs to fall asleep. Learn more about limbs falling asleep in this HowStuffWorks podcast. | 8/10/11 | Free | View In iTunes |
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78 |
How Color Blindness Works | Color blind individuals can suffer from an inability to differentiate between hues, and occasionally may not be able to see any colors at all. Learn more about color blindness in this HowStuffWorks podcast. | 8/8/11 | Free | View In iTunes |
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79 |
Why do cats have whiskers? | Cat whiskers, also known as "tactile hairs," are very different from a cat's regular body hair. In this episode, Marshall explains how these hairs are unique and what cats use them for. | 8/5/11 | Free | View In iTunes |
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80 |
How Internet Cookies Work | Internet cookies are information stored as text strings on a machine by a web server. Most commonly, cookies are used to store user IDs. | 8/3/11 | Free | View In iTunes |
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81 |
How does making bread work? | Bread is a technology for turning hard kernels into a soft foodstuff. Learn more about bread and yeast in this HowStuffWorks podcast. | 8/1/11 | Free | View In iTunes |
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82 |
How does the ball return work on a pool table? | If you've ever played a coin-operated pool table, then you've probably noticed that the table can sense the difference between the cue ball and the other balls in play. But how does this work? Tune in and find out in this podcast. | 7/29/11 | Free | View In iTunes |
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83 |
How do a zebra's stripes act as camoflauge? | A zebra's stripes offer protection from predators in the form of camouflage -- and a way to identify individual members within the larger group. Learn more about zebra stripes in this episode. | 7/27/11 | Free | View In iTunes |
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84 |
What's the deal with milk? | Milk is often touted as a "miracle drink," full of restorative, nutritional properties. And there's some truth to this claim. Find out why mammal milk is called "the perfect food" in this podcast from HowStuffWorks.com. | 7/25/11 | Free | View In iTunes |
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85 |
Can I see the stuff astronauts left on the moon? | Using a telescope to view the moon is fascinating -- but could we see the leftovers of NASA's lunar expeditions? Check out this HowStuffWorks podcast to learn more about lunar landings and telescopes. | 7/22/11 | Free | View In iTunes |
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86 |
How do astronauts function in their spacesuits? | Astronauts wear special suits while they're working in space, and these spacewalks can last for hours. In this episode, Marshall Brain explains how astronauts take care of their basic needs while wearing spacesuits. | 7/20/11 | Free | View In iTunes |
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87 |
How the Lightsaber Effect Works | Unfortunately lightsabers aren't real. The technique used to produce the lightsaber effect is simple, but tedious. Check out this HowStuffWorks podcast to learn more about the special effects behind lightsabers. | 7/18/11 | Free | View In iTunes |
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88 |
How Rearview Mirrors Work | How can the same piece of glass have two different amounts of reflection? Learn more about rearview mirrors in this HowStuffWorks podcast. | 7/15/11 | Free | View In iTunes |
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89 |
What type of gas do race cars use? | Different types of racing vehicles require different types of fuel. Check out this HowStuffWorks podcast to learn more about the advantages and drawbacks of each fuel type. | 7/13/11 | Free | View In iTunes |
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90 |
Why don't they use normal air in race car tires? | Race car tires are often filled with nitrogen because nitrogen pressure is more consistent than air pressure. In this episode, Marshall explains why nitrogen is better for race cars -- but not for regular vehicles. | 7/11/11 | Free | View In iTunes |
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91 |
What is the difference between a turbo-charger and a super-charger? | Both turbo- and super-chargers are forced inductions systems, meaning they compress the air flowing into the engine. This compression causes each cylinder of an engine to produce more power. Check out this HowStuffWorks article to learn more. | 7/8/11 | Free | View In iTunes |
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92 |
Why are traffic lights being replaced with LEDs? | Across the country, incandescent traffic lights are being replaced with LED arrays. Check out this podcast from HowStuffWorks to learn more about the advantages of LED traffic lights. | 7/6/11 | Free | View In iTunes |
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93 |
Could anti-lock brakes detect a flat tire? | By using a computer to monitor the rotation of the car's wheels, an anti-lock braking system helps drivers avoid skids. Could this computer also monitor flat tires? Check out this HowStuffWorks podcast to learn more about brake systems. | 7/4/11 | Free | View In iTunes |
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94 |
How do they create patterns in a baseball field? | Groundskeepers at baseball fields create patterns using a process called lawn striping. Tune in to find out how this process works -- and how you can duplicate it to create designs in your own yard. | 7/1/11 | Free | View In iTunes |
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95 |
How do retractable roofs in convertible stadiums work? | Retractable roofs are the latest trend in sports stadium design. Marshall highlights multiple examples of convertible stadiums in the United States and explains how they work in this episode. | 6/29/11 | Free | View In iTunes |
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96 |
In baseball, how does a pitcher throw a curveball? | A curveball is a pitcher's secret weapon for striking out batters. Discover the physics behind a great curveball in this episode of BrainStuff. | 6/27/11 | Free | View In iTunes |
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97 |
How Calorie Meters Work | It's easy to jump on an exercise machine and watch the calorie meter -- but how accurate are these meters? Learn more about calorie meters in this HowStuffWorks podcast | 6/24/11 | Free | View In iTunes |
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98 |
What are hot dogs made from? | Hot dogs were first created in Frankfurt, Germany. But what exactly are they made from? Check out this HowStuffWorks podcast to learn more about the mysterious ingredients of hot dogs. | 6/22/11 | Free | View In iTunes |
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99 |
How does popcorn work? | Popcorn is a ubiquitous snack, but there's nothing commonplace about its creation. How does a kernel of corn become a puffed white treat? Find out in this podcast from HowStuffWorks.com. | 6/20/11 | Free | View In iTunes |
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100 |
How Cooking at High Altitudes Works | The boiling point of water decreases as altitude increases -- generally, this temperature decreases by one degree for every 540 feet of altitude. Learn more about cooking at high altitudes in this podcast from HowStuffWorks. | 6/17/11 | Free | View In iTunes |
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101 |
How is olive oil made? | People across the planet love olive oil, and it's not hard to see why: This tasty liquid lends flavor to hundreds of dishes, and it's been used for thousands of years. But how does it get from the tree to the bottle? Tune in to find out. | 6/15/11 | Free | View In iTunes |
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102 |
How do bake and broil settings differ? | Kitchen ovens typically have two settings: bake and broil. What's the difference between the two? Explore the science behind baking and broiling in this podcast from HowStuffWorks.com. | 6/13/11 | Free | View In iTunes |
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103 |
How much fuel does an airplane use for a trip? | A Boeing 747 uses approximately one galloon of fuel per second -- over the course of a ten hour flight, it might burn 36,00 galloons of fuel. How does this compare to a car? Check out this HowStuffWorks podcast to learn more about airplane mileage. | 6/10/11 | Free | View In iTunes |
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104 |
How Sonic Booms Work | The sonic booms formed by planes are similar to the wakes left by boats in water. But how? To learn more about sonic booms, check out this classic podcast -- it's one of our editors' favorites. | 6/8/11 | Free | View In iTunes |
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105 |
How does an upside down airplane's engine get fuel? | Airplanes rely on gravity to disperse fuel to the engine, but what happens when the plane is flying upside down? Tune in to this podcast from HowStuffWorks.com to discover ways that acrobatic planes fly upside down without crashing. | 6/6/11 | Free | View In iTunes |
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106 |
How do aircraft carriers work? | Aircraft carriers contain some of the most advanced technology in the world. Learn more about aircraft and aircraft carriers in this podcast. | 6/3/11 | Free | View In iTunes |
|
107 |
How Contrails Work | The clouds that some jets form on certain days are called condensation trails -- or contrails. Check out this HowStuffWorks podcast to learn more about condensation, weather and jets. | 6/1/11 | Free | View In iTunes |
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108 |
How Air Force One Works | Air Force One is gigantic, but how does it work? This is one of our editors' favorite episodes, and it's no surprise why: Listen in for a brief, detailed look at the interior of Air Force One. | 5/30/11 | Free | View In iTunes |
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109 |
How big does a meteor have to be to reach the ground? | If you've spent much time looking up at the night sky, then you've probably seen some spectacular meteor showers. But how big do these things have to be make it through Earth's atmosphere and reach the ground? Tune in and find out. | 5/27/11 | Free | View In iTunes |
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110 |
Is there any way to see orbiting satellites? | Satellites are fascinating, but for most people they're somewhat mysterious. They float somewhere in space, invisible to the naked eye -- or are they? In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits. | 5/25/11 | Free | View In iTunes |
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111 |
How do satellites orbit the Earth? | Satellites are fascinating, but for most people they're somewhat mysterious. So how do they stay in orbit without plummeting to Earth? In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits. | 5/23/11 | Free | View In iTunes |
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112 |
How do astronomers measure distance? | Since astronomers can't actually travel to a star, they rely on two ingenious methods to measure a star's distance from earth. Listen in as Marshall Brain breaks down the science of space measurement in this editor's choice podcast from HowStuffWorks. | 5/20/11 | Free | View In iTunes |
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113 |
What is a light year? | A light year is a way of measuring distance -- specifically, the distance light can travel in one year. Just how far is that? Check out this classic Brainstuff podcast from HowStuffWorks' archives to learn more about astronomy. | 5/18/11 | Free | View In iTunes |
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114 |
How do space suits work? | Space suits provide oxygen, pressurize air, and control an astronaut's temperature. Learn more about space suits in this classic HowStuffWorks podcast, one of our editors' hand-picked favorites. | 5/16/11 | Free | View In iTunes |
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115 |
How do cavities work? | It's editor's choice month, so tune in and catch our editors' favorite episodes. This week, Marshall is covering cavities: They're formed by bacteria that excrete an acid onto the enamel of a tooth -- but how? Listen in to learn more. | 5/13/11 | Free | View In iTunes |
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116 |
How does Krispy Kreme work? | A single Krispy Kreme store can produce 100,000 doughnuts a day. To learn more about how these Krispy Kreme doughnuts are made, check out this HowStuffWorks podcast. | 5/11/11 | Free | View In iTunes |
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117 |
How do carbohydrates work? | We hear about carbohydrates in the news constantly -- the complex carbs are supposed to be better than the simple ones, but why? In fact, what exactly is a carbohydrate? Listen in and learn more in this podcast. | 5/9/11 | Free | View In iTunes |
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118 |
Marshall Brain's News Roundup: May 6th, 2011 | With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. | 5/6/11 | Free | View In iTunes |
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119 |
Why do people choke under pressure? | Anyone who watched the Master's tournament knows that Rory McElroy famously choked under pressure -- but what exactly happened? In this podcast, Marshall explores the science behind choking in stressful or intimidating situations. | 5/4/11 | Free | View In iTunes |
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120 |
Securing Your Wifi Router | Is it possible to get arrested for downloading illegal material even if you never download it yourself? Yes: When someone else logs onto your unprotected wifi, they can make a clean getaway while you get stuck with the blame. Tune in to learn more. | 5/2/11 | Free | View In iTunes |
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121 |
Marshall Brain's News Roundup: April 29th, 2011 | With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. | 4/29/11 | Free | View In iTunes |
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122 |
Is it possible to use a leaf blower as a supercharger? | Leaf blowers are convenient, but are they living up to their potential? In this podcast, Marshall examines superchargers, explaining how a leaf blower can (theoretically) perform the same duties. Tune in and learn more about hacking leaf blowers. | 4/27/11 | Free | View In iTunes |
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123 |
How do artificial sweeteners work? | At many restaurants, a little container on the table will have regular sugar in addition to artificial sweeteners. But what exactly are artificial sweeteners, and how do they differ in comparison to regular sugar? Listen in to find out. | 4/25/11 | Free | View In iTunes |
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124 |
Marshall Brain's News Roundup: April 22nd, 2011 | From the Dukan Diet to gigantic super organisms, there's no shortage of fascinating news stories each week -- so how can you keep track of the best? Never fear: Tune in as Marshall catches you up to speed with his weekly news roundup. | 4/22/11 | Free | View In iTunes |
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125 |
What does a gigabyte of internet access really cost? | Internet service providers often tangle with customers who claim they're being ripped off -- but how much does a gigabyte of access actually cost? Join Marshall Brain as he breaks down the real cost of a gigabyte's worth of internet access. | 4/20/11 | Free | View In iTunes |
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126 |
How does a pressurized airplane cabin work? | How does a pressurized airplane cabin work -- more importantly, what happens when the pressure fails? Join Marshall Brain as he breaks down the science behind cabin pressurization. | 4/18/11 | Free | View In iTunes |
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127 |
Marshall Brain's News Roundup: April 15th, 2011 | With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. | 4/15/11 | Free | View In iTunes |
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128 |
Is it possible to rescue water-soaked electronics? | Is it possible to rescue an electronic device dunked in water? In this episode, Marshall recounts an unfortunate meeting between a GPS device and a dog's water bowl. Tune in to learn whether or not he was able to fix it. | 4/13/11 | Free | View In iTunes |
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129 |
Will space tourism become a reality? | With private companies frantically searching for new ways to take people into orbit, it seems that space tourism could become a reality (for those who can afford it). But will it ever really happen? Tune in and learn more in this podcast. | 4/11/11 | Free | View In iTunes |
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130 |
Marshall Brain's News Roundup: April 7th, 2011 | With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. | 4/8/11 | Free | View In iTunes |
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131 |
How many people does it take to do a Formula 1 pit stop? | If you've ever seen a Formula 1 race, then you know the race isn't just between cars -- it's also between pit stop crews. In seven seconds these crews perform an entire pit stop. But how does it work, and how many people does it take? Tune in to find out. | 4/6/11 | Free | View In iTunes |
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132 |
What is the worst invasive public species? | From kudzu to cane toads, invasive species are changing the world. But which of these transplants is the worst for the local landscape? Tune in as Marshall Brain tackles invasive species across the world -- and ultimately concludes which one is the worst. | 4/5/11 | Free | View In iTunes |
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133 |
Marshall Brain's News Roundup: April 1st, 2011 | With billions of people on the planet and millions of astonishing events happening each day, it's tough to keep track of everything. Luckily, Marshall's here to keep you up-to-date with the latest news in his weekly news roundup. Tune in and learn more. | 4/1/11 | Free | View In iTunes |
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134 |
How does someone become a saint? | Many religions bestow a special status on people who demonstrate a life of almost perfect virtue -- but how does canonization actually occur? In this episode, Marshall breaks down the process used to officially recognize a person as a saint. | 3/30/11 | Free | View In iTunes |
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135 |
Where should I sit to get the best ride on a roller coaster? | Each roller coaster car is moved by the cars connected to it, which makes the experience of riding a rollercoaster a bit different in each car. Learn which seat on a roller coaster is best for you, based on science and your personal preferences. | 3/28/11 | Free | View In iTunes |
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136 |
Marshall Brain's News Roundup: March 25th, 2011 | From streaming photo albums to Rebecca Black, this week has been chock-full of fascinating (or, at least in Rebecca's case, unavoidable) events. Tune in as Marshall Brain helps you catch up on the latest and most interesting news from around the world. | 3/25/11 | Free | View In iTunes |
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137 |
How does emergency preparedness work? | In moments, a natural disaster can level cities, kill thousands and force survivors to scavenge through the rubble for supplies. In this podcast, Marshall discusses the importance of preparedness and the types of supplies you may need in an emergency. | 3/23/11 | Free | View In iTunes |
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138 |
Time Stands Still | Current technology isn't able to actually stop the passage of time, but under certain circumstances time can appear to stop -- and all you need is an airplane. Tune in to learn more. | 3/21/11 | Free | View In iTunes |
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139 |
Marshall Brain's News Roundup: March 18th, 2011 | As the nuclear situation in Japan continues to deteriorate, Marshall explores how a similar earthquake could affect the United States. And that's not all: Tune in and catch up on the latest, most fascinating news of the past week in this podcast. | 3/18/11 | Free | View In iTunes |
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140 |
What is mayonnaise? | Mayo is an emulsion - a mixture of two liquids that normally can't be combined. So how do these ingredients come together? Tune in to learn how oil, egg yolks and acid combine to form one of the world's most popular condiments. | 3/16/11 | Free | View In iTunes |
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141 |
Japan's Nuclear Problem | When the recent earthquake hit Japan, it seemed the country had withstood the worst of the blast -- until explosions occurred at a nuclear power plant. Is another disaster on the way? Tune in as Marshall explains the state of Japan's nuclear power plants. | 3/14/11 | Free | View In iTunes |
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142 |
Marshall Brain's News Roundup: March 11th, 2011 | With thousands of news items hitting the airwaves every day, it's tough to filter through all the information. Luckily, Marshall Brain has a solution. Tune in to learn more about everything from the earthquake in Japan to the causes of obesity. | 3/11/11 | Free | View In iTunes |
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143 |
Is it possible to turn coal into oil? | As the demand for dwindling oil supplies rises, scientists across the world search for new ways to generate energy. In this episode, Marshall looks at a new attempt to stave off the looming fossil fuel crisis: Turning coal into oil. Tune in to learn more. | 3/9/11 | Free | View In iTunes |
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144 |
Why do eggs turn hard when you boil them? | Eggs are rich in protein, and this protein causes eggs to turn hard when they're boiled - but how does it actually work? Tune in as Marshall Brain breaks down the science behind hard-boiled eggs. | 3/7/11 | Free | View In iTunes |
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145 |
Marshall Brain's News Roundup: March 4th, 2011 | Want to catch up on the biggest news stories of the week? If so, tune in as Marshall Brain analyzes the latest breaking news from around the world in this weekly news roundup. Tune in to learn more. | 3/4/11 | Free | View In iTunes |
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146 |
Where does aluminum come from? | Aluminum is both lightweight and strong, so it's no wonder that space stations, airplanes and thousands of other products use this metal. But where does it come from, and what makes it so special? Tune in to learn more. | 3/2/11 | Free | View In iTunes |
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147 |
Semi Submarines | There's a reason that most submarines are owned by governments - they're incredibly expensive. So what's a sub-loving consumer to do? Tune in as Marshall Brain breaks down the science behind semi subs (and why it makes them so much less expensive). | 2/28/11 | Free | View In iTunes |
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148 |
Marshall Brain's News Roundup: February 25th, 2011 | Will the USB port become a thing of the past? How far will the price of solar power fall? Join Marshall Brain as he brings you the latest world news, from the death of the Guinea worm or the growth of private space exploration. | 2/25/11 | Free | View In iTunes |
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149 |
Can people really build missiles from scratch? | In the film Salt, Angelina Jolie's character creates a missile from handy household ingredients -- but could this happen in real life? Tune in as Marshall breaks down the science behind improvised explosives. | 2/23/11 | Free | View In iTunes |
|
150 |
How do strokes work? | In a stroke, something disrupts the normal blood supply to parts of the brain. Without oxygen, affected brain cells will begin to die. Tune in as Marshall explains the causes of -- and treatments for -- strokes. | 2/20/11 | Free | View In iTunes |
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151 |
Marshall Brain's News Roundup 2-18-2011 | From Jeopardy's first nonhuman contestant to the secret recipe for Coca-Cola, this week has been packed with fascinating stories. Tune in as Marshall helps you catch up on the week's most interesting news. | 2/18/11 | Free | View In iTunes |
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152 |
How does the snow dragon eat and digest snow? | For cities plagued by yearly snowstorms, a fleet of snow plows and salt often aren't enough to get rid of excess drifts. Luckily, there's another option: Snow dragons. These machines can melt snow on the spot -- but how do they work? Tune in to find out. | 2/16/11 | Free | View In iTunes |
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153 |
How did the moon get there? | The moon has orbited over human civilization since the dawn of time, but it took us thousands of years to figure out how it actually got there. Tune in as Marshall Brain examines the formation of the moon. | 2/14/11 | Free | View In iTunes |
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154 |
Marshall Brain's News Roundup No. 2 | Each Friday, Marshall Brain brings you the latest news of the week in one handy podcast. Want to know what's shaking in the world of technology, science and more? Then tune in for a dose of BrainStuff. | 2/11/11 | Free | View In iTunes |
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155 |
Why do 3D movies cause headaches? | Although 3-dimensional movies have become increasingly popular, numerous viewers have complained of headaches while watching these films. Why? Tune in as HowStuffWorks.com founder Marshall Brain breaks down the science behind 3D films. | 2/9/11 | Free | View In iTunes |
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156 |
How is olive oil made? | People across the planet love olive oil, and it's not hard to see why: This tasty liquid lends flavor to hundreds of dishes, and it's been used for thousands of years. But how does it get from the tree to the bottle? Tune in to find out. | 2/7/11 | Free | View In iTunes |
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157 |
Marshall Brain's News Roundup No. 1 | What's the deal with the UFO sighting in Jerusalem? Will the high schools of the future be filled with telepresence robots? Tune in and join Marshall Brain as he reviews the week's most fascinating news. | 2/4/11 | Free | View In iTunes |
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158 |
What will airplanes look like in 2025? | Most modern airplanes have a similar design, but NASA has a plan to move the world of aviation into the future by partnering with the world's airplane manufacturers to radically redesign the typical airplane. Tune in to learn more. | 2/2/11 | Free | View In iTunes |
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159 |
How Proton Therapy Works | As a method of treating cancer, proton therapy has great potential. But how does it work, exactly, and what makes it superior to other forms of cancer treatment? Tune in and find out. | 1/31/11 | Free | View In iTunes |
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160 |
How can a valet rip you off? | Once relegated to high-end restaurants and clubs, valets are increasingly common across the United States. But how can you trust your valet -- and how will you know if the valet is scamming you? Tune in and find out. | 1/28/11 | Free | View In iTunes |
|
161 |
How can we eliminate fossil fuels? | It's no secret that fossil fuels have a detrimental effect on the environment, but do feasible alternatives exist? In this episode, Marshall takes a look at the possibilities of DIY biofuel. | 1/26/11 | Free | View In iTunes |
|
162 |
What is the difference between good and bad toy helicopters? | Can you buy a good, long-lasting toy helicopter for under $30? | 1/24/11 | Free | View In iTunes |
|
163 |
What is a restraining order, and how do you get one? | Restraining orders are cropping up in the news more and more frequently, but how do they work? Join Marshall Brain as he breaks down the legality of restraining orders -- and how to get one. | 1/21/11 | Free | View In iTunes |
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164 |
Can we make gasoline from bacteria? | A new company is claiming that, next year, the problems of carbon emissions, foreign oil dependence, oil spills, fuel shortages, etc. will all end due to a breakthrough in biotechnology. Is it true? | 1/19/11 | Free | View In iTunes |
|
165 |
Anti-reflective coatings | Anti-reflective coatings are used to eliminate any light reflective off the back of the lenses. Learn about anti-reflective coatings in this BrainStuff episode. | 1/17/11 | Free | View In iTunes |
|
166 |
Can picking a movie theater get any more complicated? | With all the recent technological breakthroughs, choosing the right movie theatre has become increasingly complex. Why? Listen in as Marshall breaks down the different sound and video technologies available in modern movie theaters. | 1/14/11 | Free | View In iTunes |
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167 |
How can you drive across Antarctica? | Given that it's more than 2,000 miles across and without a gas station in sight, driving across Antarctica is a daunting task. Tune in as Marshall Brain explains how it works. | 1/12/11 | Free | View In iTunes |
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168 |
What is the coolest stuff from the 2011 edition of CES? | When it came to gadgets, the 2011 Consumer Electronics Show did not disappoint. But which new products were the coolest? Tune in as Marshall Brain breaks down the latest and greatest of the CES in this podcast. | 1/10/11 | Free | View In iTunes |
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169 |
Is there an easy way to understand how time zones work? | There are 24 different time zones -- but why do we have them? In this podcast, Marshall recounts how society evolved time zones, and also gives you an easy way to model the structure of time zones across the globe. | 1/7/11 | Free | View In iTunes |
|
170 |
Do Power Balance Wristbands really work? | Do Power Balance Wristbands really work? Find out in this BrainStuff podcast by Marshall Brain. | 1/5/11 | Free | View In iTunes |
|
171 |
Why are West Coast waves bigger than East Coast waves? | The West Coast of the United States seems to produce bigger, more impressive waves than the East Coast. But why? In this episode, Marshall explains the various factors that make West Coast waves bigger and better. | 1/3/11 | Free | View In iTunes |
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172 |
Why use a humidifier in your home in the winter? | Lots of people use humidifiers in their homes, especially in winter. But why? Marshall discusses some advantages of using humidifiers (and disadvantages of not using them) and different types of home humidifiers. | 12/31/10 | Free | View In iTunes |
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173 |
Tiny Houses | Tiny houses are part of a growing trend, but why would someone want an itty bitty house? In this episode, Marshall talks about the benefits and challenges of building a tiny home. | 12/23/10 | Free | View In iTunes |
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174 |
What is Schadenfreude? | Schadenfreude is a German word that means taking pleasure in someone else's pain. But it's not the same as sadism, as Marshall Brain explains in this episode. | 12/22/10 | Free | View In iTunes |
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175 |
What is a cyberwar, and what tactics do cyber warriors use? | Modern warfare has expanded beyond its tradtional venues and tactics, infiltrating the world of cyberspace. In this episode, Marshall discusses the many forms of cyber warfare, from computer hacking to viruses. | 12/20/10 | Free | View In iTunes |
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176 |
Is it possible to get free land and free houses in the U.S.? | In the 1860s, the Homestead Act provided free land to settlers. Is there anything like that in 2010? In this episode, Marshall explains why and how it's possible to acquire land and houses for free -- or really cheaply -- in the United States today. | 12/17/10 | Free | View In iTunes |
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177 |
How does Nitroglycerin work? | What do you get when you combine acids and glycerin? Nitroglycerin! What is this substance used for, and why is it so unstable? In this episode, Marshall takes a look at the chemistry and explosive qualities of Nitrogyclerin. | 12/15/10 | Free | View In iTunes |
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178 |
How does fusion power work? | Fusion reactors like the sun produce huge amounts of energy, so why aren't there fusion power plants everywhere? In this episode, Marshall explains the chemistry of fusion reactions and discusses how close fusion is to becoming a viable energy source. | 12/13/10 | Free | View In iTunes |
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179 |
Why is Friday the 13th considered unlucky? | In countries like the United States, people have a superstitious fear of one particular date: Friday the 13th. But why? In this episode, Marshall discusses the two main fears that have fueled the Friday the 13th superstitions, as well as their origins. | 12/10/10 | Free | View In iTunes |
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180 |
How does WikiLeaks work? | WikiLeaks is a controversial "not-for-profit media organization" that disseminates secret, leaked information to the public. But how exactly does this group work? And why does it exist? Marshall Brain takes a look at WikiLeaks in this episode. | 12/8/10 | Free | View In iTunes |
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181 |
Is there a way to make my sunglasses scratch-resistant? | Sunglasses have various special coatings: Some are reflective, while others are scratch-resistant. In this episode, Marshall explains how these different coatings work. | 12/6/10 | Free | View In iTunes |
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182 |
How valuable is exercise to your health? | We all know that exercise is an important way to safeguard your health. But how, exactly? In this episode, Marshall discusses the health benefits of exercise -- and how much we need each week in order to take advantage of these benefits. | 12/3/10 | Free | View In iTunes |
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183 |
How can I make artificial snow in my backyard? | If you live in a cold enough climate, you can make fake snow just like they do for ski resorts. In this episode, Marshall shares two techniques for creating artificial snow in your own backyard -- and what to do if you live in a warm climate. | 12/1/10 | Free | View In iTunes |
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184 |
What's the best way to back up a computer's hard disk? | Your computer's hard disk stores all your information, but what happens if it gets damaged or dies? In this episode, Marshall Brain explains why it's important to back up your hard disk and weighs the advantages and disadvantages of three backup methods. | 11/29/10 | Free | View In iTunes |
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185 |
How do they create patterns in a baseball field? | Groundskeepers at baseball fields create patterns using a process called lawn striping. Tune in to find out how this process works -- and how you can duplicate it to create designs in your own yard. | 11/25/10 | Free | View In iTunes |
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186 |
What are dissolvable stitches? | Stitches have been used for centuries, but dissolvable ones are the most common these days. Why would you want stitches to dissolve, and how do they work? In this episode, Marshall discusses the benefits and features of absorbable sutures. | 11/24/10 | Free | View In iTunes |
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187 |
How does a direct-injection 2-stroke engine work? | In a previous episode, Marshall explained how 4-stroke, direct-injection engines work; In this one, he takes a look at 2-stroke engines that utilize direct injection technology. | 11/22/10 | Free | View In iTunes |
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188 |
How do airport scanners work? | The new full-body scanners used at airports in the United States have caused a huge controversy -- but how do they work? In this episode, Marshall breaks down the science behind full-body scanners, along with the uproar they've caused. | 11/19/10 | Free | View In iTunes |
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189 |
Which 4G services are available in the U.S. today? | If you have a smart phone, you may be interested in 4G service for the data you receive. But which services are available, and which one will suit your needs? Listen in as Marshall Brain breaks down the differences between 4G services. | 11/17/10 | Free | View In iTunes |
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190 |
What are the fastest hard disks available today? | Hard disk drives and connections have been getting faster and faster. In this episode, Marshall discusses the evolution of the hard disk and the shockingly fast drives available today. | 11/15/10 | Free | View In iTunes |
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191 |
What is an autograph worth? | An autograph is a famous person's signature, but what determines how valuable it is? Marshall Brain discusses the relative value of autographs -- and what you can do to increase the value of your own signature. | 11/12/10 | Free | View In iTunes |
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192 |
How do terrorist bombs work? | Terrorists have a new way of getting bombs into the United States: mailing them. In this episode, Marshall breaks down the science behind the types of bombs used by terrorists, and the explosive ingredients involved. | 11/10/10 | Free | View In iTunes |
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193 |
What is superconductivity? | Superconductive materials have no electrical resistance, but why is superconductivity a big deal? Marshall Brain explains the potential benefits and implications of superconductive materials, as well as how they work, in this episode. | 11/8/10 | Free | View In iTunes |
|
194 |
What is a fossil? | Fossils provide us with an important picture of ancient life. But how is a fossil created, exactly? Marshall Brain breaks down the various natural processes behind fossilization in this episode. | 11/5/10 | Free | View In iTunes |
|
195 |
How do gasoline direct injection engines work? | The latest improvement on the internal combustion engine is called gasoline direct injection. In this episode, Marshall explains how gasoline direct injection technology works -- and how soon we'll see it in production vehicles. | 11/3/10 | Free | View In iTunes |
|
196 |
Do you have a hidden savant inside your brain? | Savant capabilities seem extraordinary, but what if they aren't? What if we all have amazing talents embedded in our brains? In this episode, Marshall discusses different techniques that have revealed savant-like qualities in ordinary people. | 11/1/10 | Free | View In iTunes |
|
197 |
What can you do to make yourself really unhappy? | There are lots of articles and research on happiness these days, but what about unhappiness? What makes us unhappy, and will avoiding it make us happy? In this episode, Marshall points out three behaviors that are sure to create unhappiness. | 10/29/10 | Free | View In iTunes |
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198 |
What does a modern smart house look like? | What makes a "smart" house so smart? These high-tech houses intelligently use resources and are responsive to the needs and habits of their occupants. Tune in to learn more. | 10/27/10 | Free | View In iTunes |
|
199 |
How does a Dippy Bird work? | A Dippy Bird is a strange-looking novelty toy, but how does it work? Marshall Brain breaks down the surprisingly sophisticated mechanics of the Dippy Bird in this episode. | 10/25/10 | Free | View In iTunes |
|
200 |
What are motion cards and how do they work? | Motion cards, which have been around for decades, give the illusion of motion using multiple images and a special printing process. In this episode, Marshall discusses the technology behind motion cards and how it has improved over the years. | 10/22/10 | Free | View In iTunes |
|
201 |
How do self-driving cars work? | Self-driving cars seem like the stuff of science fiction, but they're closer to becoming reality than you might think. In this episode, Marshall breaks down the technology behind experimental self-driving cars. | 10/20/10 | Free | View In iTunes |
|
202 |
How does satellite Internet work? | If you're trying to access the Internet in a very rural or remote place, satellite Internet is probably your best bet. In this episode, Marshall explains how satellite Internet works. | 10/18/10 | Free | View In iTunes |
|
203 |
How did instant cameras work? | Instant cameras made it possible to see a photograph almost immediately after you'd taken it. But how? In this episode, Marshall explains the chemical processes behind regular and instant photographic film. | 10/15/10 | Free | View In iTunes |
|
204 |
When you have an itch, what's happening under your skin? | Skin covers our bodies, so it's very easy for this delicate organ to get irritated. In this episode, Marshall explains why our bodies respond to irritants with an itching sensation -- and why we're programmed to scratch. | 10/13/10 | Free | View In iTunes |
|
205 |
Is it possible to carbonate your own water? | If you enjoy drinking carbonated water, this episode's for you! Listen in as Marshall Brain explains how to make your own carbonated water at home for a fraction of the price you pay in stores. | 10/11/10 | Free | View In iTunes |
|
206 |
What is the difference between a hardwood and a softwood? | When it comes to differentiating between hardwoods and softwoods, it's not a matter of hardness or density -- it's all about plant reproduction. Marshall explains what angiosperms and gymnosperms are in this episode. | 10/8/10 | Free | View In iTunes |
|
207 |
What is making my backyard sparkle at night? | One night, Marshall went outside with a headlight lamp on his head and discovered that his backyard was full of sparkling reflections. What were these sparkles? Discover the surprising answer in this episode. | 10/6/10 | Free | View In iTunes |
|
208 |
How does CCC, the new form of CPR, work? | Continuous chest compression is an updated form of CPR that's much easier to administer -- and, studies suggest, more effective. In this episode, Marshall Brain explains how CCC works. | 10/4/10 | Free | View In iTunes |
|
209 |
How does a speedometer in an airplane work? | Most people are familiar with speedometers in cars, but do you know how air speed is determined? In this episode, Marshall explains how devices called pitot tubes gauge the speed of moving aircraft. | 10/1/10 | Free | View In iTunes |
|
210 |
How do plastics work? What is actually in a plastic? | Plastics have become so ubiquitous that we often take them for granted, but have you ever wondered where these popular materials come from? In this episode, Marshall explains what plastics are made of. | 9/29/10 | Free | View In iTunes |
|
211 |
How are movies stored on DVD discs? | How can you store an entire movie on one little DVD disc? It's all about compression! In this episode, Marshall explains the technical details and standards of video compression. | 9/27/10 | Free | View In iTunes |
|
212 |
What is a Nor'easter? | Nor'easters are storm systems that frequently occur in the eastern United States during winter. In this episode, Marshall explains where Nor'easters get their name, how they work and why some Nor'easters are more powerful than others. | 9/24/10 | Free | View In iTunes |
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213 |
Are all blood types needed for donation? | In this episode, Marshall explains how proteins determine your blood type -- and why blood types must match for blood transfusions to be successful. | 9/22/10 | Free | View In iTunes |
|
214 |
Why don't they use normal air in race car tires? | Race car tires are often filled with nitrogen because nitrogen pressure is more consistent than air pressure. In this episode, Marshall explains why nitrogen is better for race cars -- but not for regular vehicles. | 9/20/10 | Free | View In iTunes |
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215 |
How can a car get 100 MPG? | Created in the 1980s, the Avion is a car that can get more than 100 miles per gallon. In this episode, Marshall Brain talks about the factors that make the Avion so efficient -- and how the same techniques could be applied to production vehicles. | 9/17/10 | Free | View In iTunes |
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216 |
Why do cats have whiskers? | Cat whiskers, also known as "tactile hairs," are very different from a cat's regular body hair. In this episode, Marshall explains how these hairs are unique and what cats use them for. | 9/15/10 | Free | View In iTunes |
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217 |
How do retractable roofs in convertible stadiums work? | Retractable roofs are the latest trend in sports stadium design. Marshall highlights multiple examples of convertible stadiums in the United States and explains how they work in this episode. | 9/13/10 | Free | View In iTunes |
|
218 |
How does large-scale power storage work? | Wind farms and solar power plants are promising sources of renewable energy, but they're not as reliable as conventional power sources. In this episode, Marshall explains how large-scale storage technologies could make solar and wind power more viable. | 9/10/10 | Free | View In iTunes |
|
219 |
What is Low-E glass? | Low-emissivity (Low-E) glass is a special, expensive type that blocks out ultraviolet and infrared light. This coated glass can help protect your furniture and improve the energy efficiency of your home, as Marshall Brain explains in this episode. | 9/8/10 | Free | View In iTunes |
|
220 |
How do big city shell and three-card monte games work? | Shell games and three-card monte games are common sights in big cities, but did you know they're scams? Marshall explains the similar principles and tricks behind these "games" -- and why you can't win them -- in this episode. | 9/6/10 | Free | View In iTunes |
|
221 |
Why is organic food more expensive than regular food? | You've probably noticed that organic foods cost significantly more than non-organic ones, but have you ever wondered why? In this episode, Marshall Brain explains how higher production costs and other factors lead to higher prices in the grocery store. | 9/3/10 | Free | View In iTunes |
|
222 |
What makes NASCAR engines different from other engines? | NASCAR engines are built for maximum efficiency, and they're much more powerful than regular engines. Marshall Brain discusses five ways in which NASCAR engines differ from regular ones in this episode. | 9/1/10 | Free | View In iTunes |
|
223 |
Why do some doors open inward and some open outward? | In personal residences, doors typically open inward; in public buildings, however, doors open outward. Why the difference? It's all about safety and security, as Marshall explains in this episode. | 8/30/10 | Free | View In iTunes |
|
224 |
Why is bamboo suddenly appearing in so many products? | These days, bamboo is used to make all sorts of products, from flooring and furniture to bicycle frames. In this episode, Marshall explains why bamboo is becoming so popular -- and the advantages of using it to create consumer goods. | 8/27/10 | Free | View In iTunes |
|
225 |
Why is a cell phone called a cell phone? | Cellular phone systems divide areas of coverage into "cells," hence the name. Marshall Brain details how these systems work in this episode. | 8/25/10 | Free | View In iTunes |
|
226 |
How do they backlight LCD screens? | In this episode, Marshall explains the two technologies that are used to backlight LCD panels. | 8/23/10 | Free | View In iTunes |
|
227 |
How do polymer crystals work, and why do they absorb so much water? | Polymer crystals are extremely absorbent, and that's why you'll often find them in disposable diapers. Marshall explains how polymer crystals are able to absorb large quantities of liquids -- and keep you cool and dry -- in this episode. | 8/20/10 | Free | View In iTunes |
|
228 |
What is a vactrain? | Vactrains may be the next big thing in the evolution of high-speed transportation. In this episode, Marshall explains how vactrain systems will work, how close they are to becoming reality and the potential they have to impact global transportation. | 8/18/10 | Free | View In iTunes |
|
229 |
How does asphalt work, and where does it come from? | Asphalt is an extremely common, oil-derived material that's used to pave a majority of roads in the United States. Tune in to learn more about asphalt. | 8/16/10 | Free | View In iTunes |
|
230 |
To maximize happiness, what should you spend money on? | They say that money can't buy happiness, but it can definitely contribute to your well-being. So what exactly should you spend your money on to maximize your happiness? Stuff? Experiences? Marshall Brain investigates in this episode. | 8/13/10 | Free | View In iTunes |
|
231 |
Where did the potato chip come from? | Potato chips were invented in 1853 by an American cook named George Crum, and they've been a popular food item ever since. Learn more about George Crum and the evolution of the potato chip in this episode of BrainStuff. | 8/11/10 | Free | View In iTunes |
|
232 |
How do smoke detectors intercommunicate? | Some AC-powered smoke detectors are wired to communicate with each other. So when one unit is triggered, all of the units go off. Find out how this intercommunication works in this episode. | 8/9/10 | Free | View In iTunes |
|
233 |
How can I recover a deleted file from my computer? | In many cases, it's possible to recover files that have been deleted by using your computer's Recycle Bin. Marshall Brain reveals ways to recover deleted files -- and how to erase them permanently -- in this episode. | 8/6/10 | Free | View In iTunes |
|
234 |
What is Windows Safe Mode? | Safe Mode is a feature of the Windows operating system that allows users to load a limited version of the system in order to troubleshoot problems. Learn more about using Safe Mode in this episode. | 8/4/10 | Free | View In iTunes |
|
235 |
What makes us yawn? | Yawning is a universal human behavior, yet scientists still don't know exactly why we do it or what purpose it serves. Marshall Brain explores some of the theories behind yawning in this episode. | 8/2/10 | Free | View In iTunes |
|
236 |
What is a digital signature? | A digital signature is a way to authenticate electronic documents. Find out what 'authentic' means in this context -- and how encryption is involved in the authentication process -- in this episode. | 7/30/10 | Free | View In iTunes |
|
237 |
Will a really big earthquake sink Western California? | Given California's history of earthquakes and major fault lines, it's not surprising that people speculate about parts of California breaking off into the ocean. Fortunately, seismic forces don't work that way, as Marshall Brain explains in this episode. | 7/28/10 | Free | View In iTunes |
|
238 |
What are electrolytes? | What are electrolytes, and why do athletes and sick kids need them? Marshall Brain explains how ions and electrolytes work in your body in this episode. | 7/26/10 | Free | View In iTunes |
|
239 |
Why can biting on aluminum foil be painful? | When (dental) metal in your mouth comes in contact with aluminum foil, your teeth get a painful shock from the electricity produced. Marshall Brain explains how the voltaic effect plays out in your mouth in this episode. | 7/23/10 | Free | View In iTunes |
|
240 |
What exactly is jello made from? | Jello is tasty, colorful and fun to eat, but what's in it? One of its ingredients, gelatin, comes from animals. Marshall Brain breaks down the chemistry of jello and gelatin in this episode. | 7/21/10 | Free | View In iTunes |
|
241 |
What does it mean when a car has dual overhead cams? | A camshaft plays an integral role in the functioning of an engine. And dual overhead cams ramp up a machine's performance even more. Find out how dual overhead camshafts work in this episode. | 7/19/10 | Free | View In iTunes |
|
242 |
How do self-cleaning ovens work? | What does it take for an oven to clean itself? A whole lot of heat! Marshall Brain explains how these special ovens use intense temperatures to burn off baking spills and debris in this episode. | 7/16/10 | Free | View In iTunes |
|
243 |
Why can you hear the ocean in a seashell? | There are various theories about why you can hear ocean-like sounds when you hold a seashell up to your ear. Marshall Brain explains what you're probably hearing in that seashell -- and why you don't need a shell to hear it -- in this episode. | 7/14/10 | Free | View In iTunes |
|
244 |
How do flies breathe? | Insects like flies have a very different respiratory system than we do. Learn more about how flies and insects breathe in this episode. | 7/12/10 | Free | View In iTunes |
|
245 |
How can water cut through steel? | Waterjets are tools that use highly pressurized, focused streams of water to cut through metal and other solid materials. Learn more about waterjets in this episode. | 7/9/10 | Free | View In iTunes |
|
246 |
What makes your arms, legs and feet fall asleep? | When you put prolonged pressure on your feet, arms or legs, you temporarily cut off or scramble communications between your brain and your body parts. Marshall explains exactly what happens when body parts "fall sleep" in this episode. | 7/7/10 | Free | View In iTunes |
|
247 |
Where does cork come from? | Most cork comes from special trees that grow in places near the Mediterranean Sea. Learn more about cork oak trees, cork properties, cork products and cork processing in this episode. | 7/5/10 | Free | View In iTunes |
|
248 |
What happens when pregnant women smoke cigarettes? | When pregnant women smoke, they expose their developing babies to a host of addictive, harmful chemicals. In this episode, Marshall Brain explains how nicotine and other compounds found in cigarettes affect developing fetuses. | 7/2/10 | Free | View In iTunes |
|
249 |
What is an IP address? | Every computer that's connected to the Internet has its own unique "address." Tune in as Marshall explains how IP addresses work -- and how many of them exist -- in this episode. | 6/30/10 | Free | View In iTunes |
|
250 |
Why is cotton more absorbent than nylon? | When water comes in contact with the complex molecules that make up cotton and nylon, it causes a different action in each material -- but why? Listen in as Marshall Brain breaks down the science behind water absorption in this podcast. | 6/28/10 | Free | View In iTunes |
|
251 |
How does disk defragmentation work? | The term 'disk defrag' usually refers to the Windows utility known as the disk defragmenter. But what exactly is this thing, and how does it work? Tune in as Marshall Brain explains disk defragmentation in this podcast. | 6/25/10 | Free | View In iTunes |
|
252 |
Can nasal sprays be addictive? | Some people have become so dependent on their nasal sprays and products that they might worry they're addicted. Marshall Brain explains why you can't really be addicted to nasal products in this episode. | 6/23/10 | Free | View In iTunes |
|
253 |
How do astronauts function in their spacesuits? | Astronauts wear special suits while they're working in space, and these spacewalks can last for hours. In this episode, Marshall Brain explains how astronauts take care of their basic needs while wearing spacesuits. | 6/21/10 | Free | View In iTunes |
|
254 |
Is there a way to compare a human being to an engine? | Human muscles are essentially biological engines. In terms of efficiency, biological engines are amazing. Listen in as Marshall Brain calculates human efficiency in this episode. | 6/18/10 | Free | View In iTunes |
|
255 |
How do people pull large objects with their teeth? | Marshall Brain explains the physics behind pulling large objects with your teeth in this episode. | 6/16/10 | Free | View In iTunes |
|
256 |
Why does a manual transmission make a whirring noise? | When manual transmissions are put in reverse, they produce a loud, whirring noise. What's the culprit? Gears. Marshall Brain explains how helical and spur gears work in manual transmissions in this episode. | 6/14/10 | Free | View In iTunes |
|
257 |
Why do human beings have eyebrows? | Eyebrows are prominent human features, but what purpose do they serve? Scientists think they help keep stuff out of our eyes and aid in nonverbal communication, among other things. Learn more about eyebrows in this episode. | 6/11/10 | Free | View In iTunes |
|
258 |
Where do salad dressings get their bizarre names? | Salad dressings like Ranch and Thousand Island are traditional favorites, but have you ever wondered how they got their names? Marshall Brain reveals what salad dressings are made of -- and where their famous names came from -- in this episode. | 6/9/10 | Free | View In iTunes |
|
259 |
What is a funicular railway? | A funicular railway combines the technology of an elevator and a train. Find out how these fascinating railways work -- and how old they are -- in this episode. | 6/7/10 | Free | View In iTunes |
|
260 |
What do the symbols on the U.S. one-dollar bill mean? | If you've ever looked carefully at a U.S. one-dollar bill, you've probably noticed some mysterious symbols and Latin phrases. What do these symbols stand for? Why are they on there? Marshall Brain breaks it down for you in this episode. | 6/4/10 | Free | View In iTunes |
|
261 |
Why do feet stink? | What causes stinky, smelly feet? Sweat and bacteria. Find out exactly how bacteria turn sweat into malodorous feet in this episode. | 6/2/10 | Free | View In iTunes |
|
262 |
What does "not guilty by reason of insanity" mean? | Claiming the "insanity defense" in fictional courts of law is common and seems pretty straightforward; in real life, it's much more rare and complex. Discover the legal definition of "insanity" -- and how it relates to mental illness -- in this episode. | 5/31/10 | Free | View In iTunes |
|
263 |
Why shouldn't you go swimming right after a meal? | As children, many of us have been admonished not to go swimming for at least an hour after eating. But, as it turns out, there's biology behind this commonplace advice. Tune in to this episode to find out why you shouldn't swim right after you eat. | 5/28/10 | Free | View In iTunes |
|
264 |
What's the best way to get Twitter or Facebook followers? | In this episode, Marshall Brain launches the first of a series of experiments with social media. Tune in to learn more about the new BrainStuff Twitter and Facebook accounts and Marshall's social media experiments. | 5/26/10 | Free | View In iTunes |
|
265 |
How does safety glass work? | Laminated safety glass has been around since the 1920s. Find out how safety glass is made, how it works and what it's used for in this episode of BrainStuff. | 5/24/10 | Free | View In iTunes |
|
266 |
How do thirty pounds of air in your tires hold up two tons of car? | Cars are heavy machines, so how can a few small, pressurized tires support their weight? Marshall Brain explains how tire pressure and contact patches work in this episode. | 5/21/10 | Free | View In iTunes |
|
267 |
Why do Wint-O-Green Life Savers spark in the dark? | If you've ever bitten into a Wint-O-Green Life Saver candy in the dark, you've probably noticed an accompanying spark of light. Marshall Brain explains the chemistry behind this phenomenon, called triboluminescence, in this episode. | 5/19/10 | Free | View In iTunes |
|
268 |
How does a credit card's magnetic stripe work? | The magnetic stripe on the back of the card plays a key role in transactions made by credit card. Learn more about how these "mag stripes" work in this episode of BrainStuff. | 5/17/10 | Free | View In iTunes |
|
269 |
When I pay for groceries by check, where does that check go? | When you write a check to purchase goods and services, it passes through the hands of several banks before the process is complete. Marshall explains how checks are processed through intermediary banks in this episode. | 5/14/10 | Free | View In iTunes |
|
270 |
What is a blowout preventer? | The massive oil spill currently flooding the Gulf of Mexico should have been prevented by a fail-safe device called a Blowout Preventer, or BOP. Find out how this safety mechanism is supposed to work -- and why it didn't -- in this episode. | 5/12/10 | Free | View In iTunes |
|
271 |
Why is a popsicle called a quiescently frozen confection? | Popsicles are also called "quiescently frozen confections" because of the way they're frozen. Learn more about how flavored ice treats are made -- and what distinguishes them from ice cream -- in this episode. | 5/10/10 | Free | View In iTunes |
|
272 |
How does the ball return work on a pool table? | If you've ever played a coin-operated pool table, then you've probably noticed that the table can sense the difference between the cue ball and the other balls in play. But how does this work? Tune in and find out in this podcast. | 5/7/10 | Free | View In iTunes |
|
273 |
Where's the best place to sit in a movie theater? | When it comes to where you should sit in a movie theater to get the best experience, it's mostly a matter of preference. Except when it comes to sound. Find out why -- and where you should sit -- in this episode. | 5/5/10 | Free | View In iTunes |
|
274 |
Is it harmful to breathe 100-percent oxygen? | Oxygen is a necessary component of the air we breathe; but in its pure form, it can be hazardous to one's health. Marshall Brain explains how breathing pure oxygen harms the human body in this episode. | 5/3/10 | Free | View In iTunes |
|
275 |
How does a CB radio antenna work? | A citizens band (CB) radio is often used by truck drivers to communicate while on the road, but how does it work? Marshall Brain gives a detailed explanation of how a CB radio's antenna works in this episode. | 4/30/10 | Free | View In iTunes |
|
276 |
Why does the moon look bigger when it's near the horizon? | When the moon is near the horizon, it appears to be much bigger than when it's high in the sky. But is it really larger? Tune in to find out. | 4/28/10 | Free | View In iTunes |
|
277 |
How does residential real estate work? | There are many different types of residential real estate: traditional houses, condos, mobile homes, etc. But what's the difference between these types? Marshall Brain breaks it down for you in this episode of BrainStuff. | 4/26/10 | Free | View In iTunes |
|
278 |
What are chiggers, and how do they bite you? | If you go outdoors during the right time of year, you may be bitten by chiggers. But what are these creatures, and why do they attack unsuspecting humans? Listen in as Marshall Brain breaks down the life cycle of the chigger -- and how it can affect you. | 4/23/10 | Free | View In iTunes |
|
279 |
How big does a meteor have to be to reach the ground? | If you've spent much time looking up at the night sky, then you've probably seen some spectacular meteor showers. But how big do these things have to be make it through Earth's atmosphere and reach the ground? Tune in and find out. | 4/21/10 | Free | View In iTunes |
|
280 |
Is the sound on vinyl records better than on CDs? | The sound quality of vinyl records is sometimes better than that of CDs and DVDs -- and sometimes worse. Learn more about the difference between the sound quality of records, CDs and DVDs in this episode. | 4/19/10 | Free | View In iTunes |
|
281 |
How does high-speed rail work? | Although it's common in some countries, high-speed rail service isn't available in the United States -- yet. Tune in to learn more about this swift rail service -- and how soon we're likely to have it in the U.S. -- in this episode. | 4/16/10 | Free | View In iTunes |
|
282 |
How do you decaffeinate coffee and tea? | There are multiple methods of removing caffeine from naturally caffeinated plant products. Learn more about these processes -- and how much caffeine they really remove -- in this episode. | 4/14/10 | Free | View In iTunes |
|
283 |
Why can't a couch potato run a marathon? | Intuitively, it makes sense that a trained athlete can run a marathon easily, while a "couch potato" can barely run a mile. But what's the biology behind it? Find out how fit and unfit bodies respond to exercise in this episode. | 4/12/10 | Free | View In iTunes |
|
284 |
How do I know if my catalytic converter has failed? | An automobile's catalytic converter uses a catalyst to convert harmful exhaust fumes into harmless ones. Find out what happens when your catalytic converter stops working properly -- and how you can tell -- in this episode. | 4/9/10 | Free | View In iTunes |
|
285 |
How much coal does a light bulb need to run for a year? | How much coal do you need to run a 100-watt light bulb 24 hours a day for a year? Find out in this episode of BrainStuff. | 4/7/10 | Free | View In iTunes |
|
286 |
What is the Strategic Petroleum Reserve? | The Strategic Petroleum Reserve is the world's largest emergency oil stockpile. Find out why the United States created this reserve -- and where the oil is stored -- in this episode. | 4/5/10 | Free | View In iTunes |
|
287 |
How does bulletproof glass work? | Bullet-resistant glass, commonly referred to as "bulletproof," is a special type of glass designed to resist bullets. Tune in to this episode to learn how different types of bullet-resistant glass work. | 4/2/10 | Free | View In iTunes |
|
288 |
What causes the smell after rain? | The smell of rain is often linked with spring, and it's been alluded to in poems, songs and stories for centuries. But what exactly causes this distinctive smell? Tune in and find out. | 3/31/10 | Free | View In iTunes |
|
289 |
What would happen if the polar ice caps melted? | Learn more about melting ice caps, global warming and rising sea levels in this episode of BrainStuff. | 3/29/10 | Free | View In iTunes |
|
290 |
Why can I play some DVDs, but not others? | Film studios use regional code protection in DVD technology to protect content and to control worldwide release dates. Tune as Marshall Brain breaks down the concept of region codes in this podcast. | 3/26/10 | Free | View In iTunes |
|
291 |
How do the Northern Lights work? | The Northern Lights, also known as the aurora borealis, occur when charged electrons from the sun interact with the Earth's magnetic field. Learn more about auroras and solar activity in this episode. | 3/24/10 | Free | View In iTunes |
|
292 |
Why should you wash new clothes before wearing them? | Some clothes have tags that say "wash before wearing" or "wash separately." Find out why it's sometimes a good idea to wash new clothes before you wear them in this episode. | 3/22/10 | Free | View In iTunes |
|
293 |
Why do most zippers say 'YKK' on the pull-tab? | Have you ever wondered why zippers often have the letters 'YKK' etched into them? Learn more about the Japanese company behind the tiny letters -- and the zippers -- in this episode. | 3/19/10 | Free | View In iTunes |
|
294 |
How do they get the lead in a wooden pencil? | Today's pencils are manufactured very differently than the original versions; but they still use a material called graphite, which isn't lead at all. How does the graphite get in the pencil? Find out in this episode. | 3/17/10 | Free | View In iTunes |
|
295 |
How does your stomach keep from digesting itself? | The stomach is a hollow, many-layered organ that produces powerful acids to break down food -- and another substance to protect the stomach from being digested. Find out what this substance is, and learn more about the stomach, in this episode. | 3/15/10 | Free | View In iTunes |
|
296 |
Why do newspapers turn yellow over time? | Newspapers turn yellow over time because they contain lignin, a substance in wood that oxidates when exposed to air and light. Learn more about lignin and paper processing in this episode of BrainStuff. | 3/12/10 | Free | View In iTunes |
|
297 |
How do self-setting clocks work? | Self-setting clocks and watches synchronize themselves with the atomic clock in Colorado with the help of a special radio station. Find out how -- and learn more about NIST's radio station -- in this episode. | 3/10/10 | Free | View In iTunes |
|
298 |
How many calories does a person need daily? | The amount of calories a person needs to consume on a daily basis varies by individual. Discover the three factors that can help you determine your daily caloric needs in this episode of BrainStuff. | 3/8/10 | Free | View In iTunes |
| Total: 298 Episodes |
Customer Reviews
Cool!
These little bits of information can come in handy, especially when your 7th grade science teacher expects you to know everything. They are easy to understand, not real scientifically said, and you learn something new every day! Keep up the work, Marshall Brain!
Good, but the Original website is more Satisfying
These little one minute blurbs (only 30 seconds of each is actual information) are more like teasers or commercials for the How Stuff Works web site. The web site is awesome, and very detailed. These podcasts are a little thin on content. For serious science & technology buffs, I recommend the Scientific American podcast.
superficial and incomplete
They miss a great opportunity for the medium. For some reason they've decided to make the broadcast 60 seconds long. Which means they have time to give an explanation that only an incurious 2nd grader would love. And a clusily edited down explanation at that. To say that they only scratch the surface of a topic would be overstatement. They make NO impression. Like chewing on styrofoam shaped like popcorn, this is unsatifying.
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