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Tears in Space (Don't Fall)
Tears in Space (Don't Fall) - Canadian Space Agency Astronaut Chris Hadfield demonstrates the physics of tears in space. Credit: CSA/NASA
For more fun facts about living in space, see: http://www.asc-csa.gc.ca/eng/astronau...
What if You Were Born in Space?
What if You Were Born in Space?
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Your Mass is NOT from Higgs Boson
Your Mass is NOT from Higgs Boson - The Higgs Boson is awesome but it's NOT responsible for most of your mass! Thanks to audible.com for supporting this episode: http://bit.ly/ZJ5Q6z
The Higgs mechanism is meant to account for the mass of everything, right? Well no, only the fundamental particles, which means that electrons derive their mass entirely from the Higgs interaction but protons and neutrons, made of quarks, do not. In fact the quark masses are so small that they only make up about 1% of the mass of the proton (and a similar fraction of the neutron). The rest of the mass comes from the energy in the gluon field. Gluons are massless, but there is so much energy in the field that by E=mc^2 there is a significant amount of mass there. This is where most of your mass comes from and the mass of virtually everything around you.
The Vacuum is NOT Empty
The Vacuum is NOT Empty - An atom is mostly empty space, but empty space is mostly not empty. The reason it looks empty is because electrons and photons don't interact with the stuff that is there, quark and gluon field fluctuations.
It actually takes energy to clear out space and make a true 'empty' vacuum. This seems incredibly counter-intuitive but we can make an analogy to a permanent magnet. When at low energies, like at room temperature, there is a magnetic field around the magnet due to the alignment of all the magnetic moments of the atoms. But if you add some energy to it by heating it, the particles gain thermal energy, which above the Curie temperature makes their magnetic moments randomly oriented and hence destroying the magnetic field. So in this case energy is needed to clear out the field, just as in the quantum vacuum.
Momentum and Portal - Sixty Symbols
Momentum and Portal - Sixty Symbols - Professor Moriarty requested that we re-visit one aspect of physics in the game Portal 2 - humour him!
Epic Slow-Mo Drum Implosions!
Epic Slow-Mo Drum Implosions!
Negative Pressure Exists! http://bit.ly/TFilQ8
Vsauce's Space Straw: http://bit.ly/XubIm3
Smarter Every Day's Prince Rupert's Drop: http://bit.ly/10VQBGW
ViHart's Optimal Potatoes: http://bit.ly/14egJoe
Parallel Universes: Many Worlds
Parallel Universes: Many Worlds
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Ionic Bonding Part 2
Ionic Bonding Part 2 - We'll look at the details of ionic bonding, using sodium chloride as an example. Both atoms have unfilled valence shells, which are the outermost energy level. Electrons are transferred from the metal to the nonmetal, creating ions with an opposite charge. The atoms are then held together because of the attraction between the opposite charges.
Ionic Bonding Introduction
Ionic Bonding Introduction - Need help? Ask me your questions here:
http://vespr.org/videos/515d8c899d534...
This video is an introduction to ionic bonding, which is one type of chemical bonding. Ionic bonds hold together metal and nonmetal atoms. In ionic bonding, electrons are transferred from a metal atom to a nonmetal atom, creating ions. These ions have opposite charge, so they stick together.
How Hot Can It Get?
How Hot Can It Get? Sit back and enjoy Vsauce's amazing video on Temperature. Highly recommended!
TEMPERATURES!
Links to everything:
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Thanks to http://www.youtube.com/minutephysics
and
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for their guidance on this video!
All music (except for the classical in the beginning) by Jake Chudnow: http://www.soundcloud.com/JakeChudnow
Human body temperature: http://antranik.org/regulation-of-bod...
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