Lecture06 - Big Bang Black Holes No Math Dr Jonathan Asaadi...

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Big Bang, Black Holes, No Math Dr. Jonathan Asaadi Dr. Jonathan Asaadi Physics we need Physics we need Light, Gravity, and Light, Gravity, and General Relativity General Relativity Big Bang, Black Holes No Math Topic: Physics we need 1
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Reading Assignment Brief History of Time: Chapters 2 In Search of Schrodinger's Cat: Chapter 2 Blackboard Questions online Blackboard Questions online Discussion next Monday Discussion next Monday Big Bang, Black Holes No Math Topic: Physics we need 2 Questions for discussion: From BHOT Chapter 1: What was the tension created by Newton's laws, Newton's theory of gravity, and an idea of a static universe? What are the two “partial” theories that we currently have to describe the universe? Any questions from the reading in Chapter 1 Brief History of Time or Chapter 1 In Search Of...?
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The Topics We need to learn about: Light and Doppler Shifts Gravity and General Relativity Atomic Physics and Quantum Mechanics Nuclear Physics and Chemistry Temperature and Thermal Equilibrium We won’t spend too long on each, just enough to get back to the big picture… Since there is no perfect way to present them (they all tie into each other) we’ll just start somewhere and get going… Big Bang, Black Holes No Math Topic: Physics we need 3 Finishing this today .... Starting this today
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Review What we are learning about light 1 Light is a wave 2 …and a particle 3 Light is REALLY fast , but does have a finite speed 4 Doppler effect Big Bang, Black Holes No Math Topic: Light 4 Done Done Done Today
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5 Light is more than the colors we see You may have thought of Radio Waves and X-rays as different things, but they are just light with different wavelengths Big Bang, Black Holes No Math Topic: Light 5
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A Particle and a Wave Actually it’s really more complicated than that Light is both a wave and a particle… can describe it as either… it has properties of both Turns out that this is true for ALL PARTICLES Big Bang, Black Holes No Math Topic: Light 6
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The Energy of Light Big Bang, Black Holes No Math Topic: Light 7 Large wavelength Low Energy Medium wavelength Medium Energy Small Wavelength Large Energy
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Light has a Finite Speed Light has been measured to have a specific speed 3 x 10 8 meters per second 186,000 miles per second 1 foot per nanosecond Really FAST The fastest speed allowed Big Bang, Black Holes No Math Topic: Light 8
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Big Bang, Black Holes No Math Topic: Light 9 In Class Quiz # 5 (Part 1/2) Be sure to write your name and the quiz number on the quiz 1) Give three examples of waves. 2) What is the amount of time it takes for light from the nearest star to reach the earth? 3) Where do I work and do my research when I am not teaching?
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4) What was the name of the ancient greek who though light was instantaneous?
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