Arvin Ash

Why is the universe QUANTUM? What if it isn't? (2021x27)

Udgivelsesdato: Sep 10, 2021

Get your SPECIAL OFFER for MagellanTV here: https://try.magellantv.com/arvinash - It's an exclusive offer for our viewers! Start your free trial today. MagellanTV is a new kind of streaming service run by filmmakers with 3,000+ documentaries! Check out our personal recommendation and MagellanTV’s exclusive playlists: https://www.magellantv.com/genres/science-and-tech Background videos: Quantum Field theory: https://www.youtube.com/watch?v=jlEovwE1oHI Quantum mechanical model of the atom: https://www.youtube.com/watch?v=fP2TAw7NnVU Chapters: 0:00 - The beginning of science 2:07 - Magellan offer 2:30 - Classical physics 3:40 - What is a black body? 4:24 - The Ultraviolet catastrophe 5:30 - Solution by Max Planck - Planck's law 7:03 - Why electrons should hit the nucleus 8:04 - The Bohr model of the atom 9:48 - A problem with Schrodinger's equation 10:30 - The Dirac equation and quantum field theory 11:51 - Is the universe Probabilistic or deterministic? 12:58 - What would a non-quantum universe look like? Summary: What do we think the universe is quantum? What if the universe was not quantized? Classical mechanics was doing just fine after Isaac Newton reduced nearly all mechanical phenomena to a single powerful equation: F=MA, James Clerk Maxwell also solved the mystery of electricity and magnetism. Classical physics is continuous. This means you can always keep dividing things into smaller pieces. But scientists realized that classical physics had some major flaws because certain phenomena could not be explained, like the color of a hot glowing body. In 1900, Lord Rayleigh and James Jeans had used experimental data to come up with a law for how all objects emit electromagnetic radiation. The problem was that according to their theory a black body will send out energy in any frequency range allowed by the temperature. But for very energetic objects at temperatures above 5000 Kelvin, their theory predicts that the object should radiate a