The fundamental forces of the Universe
von The Open University
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Behind these laws are the four fundamental interactions: the electromagnetic force, the strong and weak nuclear forces, and the gravitational force. These four forces lie at the heart of all interactions, everywhere in the Universe.
Are these four forces really distinct from each other? Have they always been distinct, throughout the history of the Universe? When scientists investigate these forces at high energies – using particle accelerators such as the Large Hadron Collider at CERN for instance – they have seen hints that these forces are not as distinct as supposed.
And since the very early Universe was an extremely energetic place in that first fraction of a second after the Big Bang, it seems likely that the four forces were unified then in some way.
This learning pathway introduces the four fundamental forces, explaining their discovery and the theories surrounding their interactions, before going on to explore real world examples of these interactions, the ideas of superunification and so-called ‘theories of everything’.
|1||The fundamental forces of the Universe - Video Introduction||--||3:28||Gratis||In iTunes ansehen|
|2||Electromagnetic waves||Radio waves are the basis for our communications industry. The discovery of a link between electricity and magnetism led to the very first radio transmissions.||4:59||Gratis||In iTunes ansehen|
|3||Particle collisions||Professors Frank Close and Tejinder Virdee explain why physicists smash particles together and what happens in a particle collision||2:52||Gratis||In iTunes ansehen|
|4||Looking for dirty galaxies||--||12:14||Gratis||In iTunes ansehen|
|5||Seeing inside the Sun||--||20:01||Gratis||In iTunes ansehen|
|6||The Large Hadron Collider||The biggest scientific experiment ever constructed. How will the machine work and what is the holy grail in particle physics today?||6:56||Gratis||In iTunes ansehen|
||The physical world: collisions||An introduction to this album||1:01||Gratis||In iTunes ansehen|