video3 - Video Assignment 3 The Elegant Universe HONR217...

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Video Assignment 3 “The Elegant Universe” HONR217 – Tuesday Logan Miller 111076642 Freshmen History Major 2111, Denton Hall University of Maryland College Park, MD 20742 [email protected] 609-335-8091 I. Einstein’s Dream A. Sought a single theory to describe all of physics: unification
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B. String Theory 1. New radical theory 2. A Universe of eleven dimensions a. Possibility of parallel universes 3. Everything in the universe is made of vibrating strands of energy called strings a. Vibrate in different ways b. Relatable to an orchestra II. Predecessors in Science A. Isaac Newton proposed force of gravity 1. Unified heavens and Earth into one theory of gravity 2. Newton’s equations enough to send man to the moon 3. Did not, however, understand how gravity works B. Albert Einstein 1. At age of 26, discovers the velocity of light is a cosmic limit 2. This limit conflicts with Newton’s universe a. Though gravity was instantaneous 3. Einstein realized light was not instantaneous, and nothing can travel faster than it 4. He then creates idea of space-time fabric a. Warped and stretched by heavy objects b. Creates the feeling of gravity 5. Concept becomes known as General Relativity C. James Clark Maxwell 1. Scottish scientists determines relationship between electricity and magnetism 2. Creates four equations unifying the two forces into electromagnetism D. Einstein’s problem of unifying gravity and electromagnetism 1. Gravity far weaker than electromagnetism 2. EM force billions and billions of times stronger E. 1920s – Quantum physics created 1. Atoms begin to be pried apart 2. Einstein’s theory insufficient to explain this new world 3. Quantum Mechanics eventually describes this subatomic universe a. Einstein’s theories demand predictability b. Neils Bohr’s quantum mechanics are based on chance and probability
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This note was uploaded on 09/07/2011 for the course HONR 217 taught by Professor Carlson during the Fall '10 term at Maryland.

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video3 - Video Assignment 3 The Elegant Universe HONR217...

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