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Electromagnetic waves Wave media Michelson & Morley

CLASSICAL PHYSICS Light: Into the modern era. Electromagnetic waves Wave media Michelson & Morley. L I G H T. Electric & Magnetic Vibrations `Electromagnetic Waves’. All travel at the same speed: 186,000 miles each second. Examples of Waves.

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Electromagnetic waves Wave media Michelson & Morley

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  1. CLASSICAL PHYSICS Light: Into the modern era • Electromagnetic waves • Wave media • Michelson & Morley

  2. L I G H T Electric & Magnetic Vibrations `Electromagnetic Waves’ All travel at the same speed: 186,000 miles each second

  3. Examples of Waves Waves -> Medium (what vibrates?)

  4. Name given to purported medium of light waves • Must fill universe (we see light from stars) • Must have no viscosity (planets do not slow down) • Must be very stiff (light waves travel very fast) • …. in summary ????? Luminiferous Ether ?????? BIZARRE BIG PROBLEM Could define Absolute Motion relative to the Ether…

  5. Michelson-Morley Speed of light same in all directions !!! experiments fail to detect motion of the Earth in Ether • Speed of light independent of • Inertial Reference Frame !!!

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