Electromagnetism and Stellar Evolution

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Artwork in background: Transcendental_Authenticity Artist: Brandon van de Venter For best viewing please maximize and select highest video quality This video introduces key concepts related to electromagnetism, particle physics, and stellar evolution. A list of key terms and definitions can be provided upon request. The main takeaways from this video are that: - All radiation is a form of light (x-rays, UV rays, visible light, radio FM or AM waves) - The difference between types of radiation is their wavelength and frequency, which are inversely related: if one goes up the other must go down. - No elements heavier than iron (Fe) are formed in a sun; they're created in a supernova - Our sun is a second generation star (due to presence of post-nova elements, about 2% of composition). - Stars follow a certain evolutionary cycle: from a molecular cloud of gas to a pre-fusion protostar, to a true star and eventually either a red giant or a supernova. - Red giants form white dwarfs, supernovae create neutron stars, really heavy stars create black holes. - The evolutionary cycle of a star can be mathematically graphed and tracked. - Light is discontinuous (not a stream but a trickle) λf=c or wavelength * frequency = speed of light (180000mi/sec) E=ћv or energy = plank's constant * frequency of oscillator Elements emit light at different λ and f, which is why astronomers can determine the molecular composition of stars, galaxies, nebulae, and gas clouds by gathering light from a ...


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