Quite Easily Done
by Cambridge University
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Description
A weekly homemade series of puzzles, tricks and mathematics from James Grime of Cambridge University.
| Name | Description | Released | Price | ||
|---|---|---|---|---|---|
| 1 | VideoMaths Puzzle: Coins | QED Gold: Originally uploaded 31st January 2011. Take a random pile of coins. If I tell you how many coins are heads and how many coins are tails, can you separate the pile into two piles with the same number of heads in each. And can you do this with your eyes shut? | 2/19/12 | Free | View In iTunes |
| 2 | VideoMöbius Strip Hearts (For Valentine's Day) | QED Gold: Originally uploaded 6th February 2011. The Möbius Strip is a strange mathematical shape which is a loop with only one side and one edge. For more information see wikipedia: http://en.wikipedia.org/wiki/Mobius_strip This is not a new idea, and for this and more mathematical valentines ideas see this blog: http://individual.utoronto.ca/sck/vday.html | 2/6/12 | Free | View In iTunes |
| 3 | VideoQED Code Challenge 2012 | Send your entries to the Enigma Project http://enigma.maths.org Challenge ends on the 1st of March 2012. And check out NRICH: http://nrich.maths.org (February 2012 is code month) cipher: VA BT LS EG OT XK PB BH CI FV GA YC QG BP UW IH QD OE DI HL CQ YC QG BP EI LZ GA GB IZ PS AZ DQ NI CY UY EA AI UA BF BV OV QA ZS DP QD PG QM PS WL QY DH BD TL VZ PL LW AH GZ BP IM NI KP DZ QU DH FP CI FV RT SB BP BV XO BE BQ PG KO GE IK KO NA OS DG DG DA OX PO GE LZ GA OP FL WU PU UT WF BV IC HF EQ SP NA UX DC BV crib: "EXTRA LARGE FRENCH FRIES" | 2/2/12 | Free | View In iTunes |
| 4 | VideoTop Trumps Investigations | QED Gold: Originally uploaded 26th February 2011 Top Trumps is a popular game were players compare stats on their favourite subject. But I wondered, are all packs of Top Trumps the same? Is there a formula? And if there isn't could I devise a mathematically perfect version of Top Trumps. This is my genuine investigation into the game Top Trumps: Best of Bond. | 1/29/12 | Free | View In iTunes |
| 5 | VideoMaths Puzzle: Back to Black | I have a board that uses the numbers 1 to 90. I fill the board with Othello piece, they are black on one side and white on the other. All the pieces start black side up. First I flip every second number, so 2 becomes white, and 4, 6, 8 and so on. Then I flip every third number, then every fourth number, until finally I flip every 90th number. Which numbers end up black side up and why? Music by Ghostly Dust Machine http://freemusicarchive.org/music/Ghostly_Dust_Machine/Bad_Panda_79/Ode_To_A_Baby_Snowstorm | 1/19/12 | Free | View In iTunes |
| 6 | VideoWhy does 1=0.999...? | QED Gold: Originally uploaded 28th April 2011 A common question, why does 1=0.999... If you want to know more, Wikipedia has a good article on the subject http://en.wikipedia.org/wiki/0.999... Join the discussion on YouTube http://youtu.be/G_gUE74YVos | 1/16/12 | Free | View In iTunes |
| 7 | VideoStraw Kazoo | QED Gold: Originally uploaded 21st May 2011. A silly one, and this time not about mathematics but a fun physics demonstration. | 1/8/12 | Free | View In iTunes |
| 8 | VideoCan you crack the combination lock? - Solution | The sequence 11221 contains all 2-digit combinations using the numbers 1 and 2. A sequence such as that is called a De Bruijn sequence. I show you three methods to find such sequence. | 12/17/11 | Free | View In iTunes |
| 9 | VideoCan you crack the combination lock? | The sequence 11221 contains all 2-digit combinations using the numbers 1 and 2. Can you find a sequence that contains all the 3-digit combinations using the numbers 1, 2, and 3. What is the shortest such sequence? Can you find a sequence that contains all the 4-digit combinations using the numbers 1, 2, 3, and 4. What is the shortest such sequence? Then, can you break this lock? By which I mean, find the shortest sequence containing all 4-digit combinations using the numbers 0 to 9. The sequence is 10003 digits long (yes I misspoke in the video!) | 12/15/11 | Free | View In iTunes |
| 10 | VideoMaths Puzzle: First to get a head solution | QED Gold: Originally uploaded 28th May 2011 Solution the the First to get a head problem | 12/13/11 | Free | View In iTunes |
| 11 | VideoThe Maths of Christmas | QED Gold: Originally uploaded 19th December 2009 My true love gave to me Triangle Numbers. | 12/11/11 | Free | View In iTunes |
| 12 | VideoMaths Puzzle: First to get a head | QED Gold: Originally uploaded 25th May 2011. Let's get ready to rhumble...! | 11/20/11 | Free | View In iTunes |
| 13 | VideoWisdom of the Crowds competition - the answer | QED Gold: Originally uploaded 24th June 2011 We reveal the answer to my Wisdom of the Crowds competition. I asked you to guess how many jellybeans were in a jar. How close was the wisdom of the crowd, but first we need to answer - which average should we use? | 11/14/11 | Free | View In iTunes |
| 14 | Video10000 YouTube Subscribers and Wisdom of the Crowds | QED Gold: Originally uploaded 12th June 2011 Competition is over I'm afraid, but you may still like to play. Here's a photo of the jar: http://tumblr.com/xqt2yusc39 | 10/31/11 | Free | View In iTunes |
| 15 | Video28 Minutes Later - The Maths of Zombies | So, to survive a zombie attack you need to run. In the long term we need a fortified society, but if the barricades fall we need to reduce the speed of infection, slow them down, and be more deadly than they are. | 10/26/11 | Free | View In iTunes |
| 16 | VideoMentally Unsolvable (?) Card Trick Tutorial | QED Gold: Originally uploaded 17th July 2011. Watch the tutorial by mismag822 http://www.youtube.com/watch?v=4BZFx1eUOFs Originally posted by zachcloseupmagic http://www.youtube.com/watch?v=-vUiXp6HGXs | 10/23/11 | Free | View In iTunes |
| 17 | VideoMake a Post-it Note Dodecahedron! | How to make a Post-it Note Dodecahedron. Fun and beautiful! If you make one yourself send me the photo! Email address in the video. Follow me on Facebook/twitter etc http://singingbanana.com Thanks to Colin Wright who taught this to me. Follow Colin at http://solipsys.co.uk or on Twitter: @colinthemathmo And thanks to Julia Collins for the headache. Follow Julia and Haggis the sheep at http://haggisthesheep.wordpress.com and @haggismaths | 10/14/11 | Free | View In iTunes |
| 18 | VideoWhispering Jokers | QED Gold: Originally uploaded on YouTube on 14th July 2011 Watch the tutorial by mismag822 http://www.youtube.com/watch?v=J8shpCoZHdY Watch the trick performed on Penn and Teller's Fool Us http://www.youtube.com/watch?v=yJwbBP1akY8 | 10/9/11 | Free | View In iTunes |
| 19 | VideoThe Slide Rule | No shoes allowed on the helter skelter. | 10/2/11 | Free | View In iTunes |
| 20 | VideoThe Trinity College Clock, Cambridge | A look at the Trinity College clock with Hugh Hunt. For more information: http://www.trin.cam.ac.uk/clock | 9/25/11 | Free | View In iTunes |
| 21 | VideoPuzzle: Mathematical Ants Solution | Solution to my last video: http://www.youtube.com/watch?v=lAmhA_SmzsI This puzzle was given to me by Rob Eastaway http://www.robeastaway.com/ Books by Rob Eastaway (I do recommend them!) Amazon UK: http://amzn.to/pSsLYO Amazon USA: http://amzn.to/qWAQvI | 9/22/11 | Free | View In iTunes |
| 22 | VideoPuzzle: Mathematical Ants | A little puzzle to pass the time... | 9/22/11 | Free | View In iTunes |
| 23 | VideoWhat's the probability you live in an odd numbered house? | QED Gold: Originally uploaded 5th August 2011 A video of me reading my original blog post out loud http://singingbanana.tumblr.com/post/6629627960/whats-the-probability-you-live-in-an-odd-numbered The original Facebook poll: https://www.facebook.com/home.php?sk=question&id=218841344812765&qa_ref=qd | 9/18/11 | Free | View In iTunes |
| 24 | VideoGame of Nine Solution | Solution to my 'Game of Nine' video: http://youtu.be/ue4Baa8Mhn8 Each player takes it in turns to pick a number, the first to pick three numbers that add up to 15 wins. With this simulation you don't even need a friend! http://gammahoo.de/gameofnine Thanks to GammahooX for making it. | 9/15/11 | Free | View In iTunes |
| 25 | VideoSurvey: What's Your Favourite Number? | QED Gold: Originally uploaded 1st June 2011. Survey ends October 2011 so there is still time to take part! Take part in our survey at http://www.favouritenumber.net | 9/11/11 | Free | View In iTunes |
| 26 | VideoGame of Nine | Here is a game for you to play and investigate. Is there a winning strategy? Each player takes it in turns to pick a number, the first to pick three numbers that add up to 15 wins. With this simulation you don't even need a friend! http://gammahoo.de/gameofnine Thanks to GammahooX for making it. | 9/8/11 | Free | View In iTunes |
| 27 | VideoFlipping 10 heads in a row: Full video | Even unlikely events happen given enough opportunities. | 9/4/11 | Free | View In iTunes |
| 28 | VideoFlipping 10 heads in a row | -- | 9/4/11 | Free | View In iTunes |
| 29 | VideoWelcome to Quite Easily Done | A short welcome to my channel. | 9/2/11 | Free | View In iTunes |
| 30 | VideoBenford's Law - How mathematics can detect fraud! | Benford's Law is a truly surprising fact about the frequency of numbers when studying data such as prices, populations, rivers, even street addresses. And if someone's accounts do not follow Benford's Law then they may be committing fraud! | 8/16/11 | Free | View In iTunes |
| 31 | VideoSimple Maths | Some simple maths filmed at the Mathematical Association annual conference dinner, 2011. With thanks to everyone involved. | 8/16/11 | Free | View In iTunes |
| 32 | VideoWhat is the point? | "What is the point of mathematics?" | 8/16/11 | Free | View In iTunes |
| 33 | VideoMaths Problem: Connect the towns solution (Motorway Problem) | What is the minimum amount of road needed to connect these four towns together? Known as the Motorway Problem or Steiner Problem. An experimental solution. | 8/16/11 | Free | View In iTunes |
| 34 | VideoConnect The Towns | What is the minimum distance to connect four towns? | 7/21/11 | Free | View In iTunes |
| Total: 34 Episodes |
Customer Reviews
Enthusiasm for Math is infectious
Jim Grime's delivery is so enthusiastic that you can't help but be drawn into the fun and intrigue of mathematics. His delivery is light and fun, and yet extremely precise. He clearly knows his material and so clearly loves the subject and that will keep you coming back for more.
