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Electromagnetic Waves

Electromagnetic Waves. EM Wave. EM Spectrum. What About Light?. Initially, light was believed to travel through a medium that pervaded all of space: The Luminiferous Aether. Aether Wind.

chandler-mullen
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Electromagnetic Waves

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  1. Electromagnetic Waves

  2. EM Wave

  3. EM Spectrum

  4. What About Light? Initially, light was believed to travel through a medium that pervaded all of space: The LuminiferousAether

  5. Aether Wind Aether is at rest, but solar system is moving through the aether since the solar system is moving around the center of the Milky Way Galaxy

  6. Like Dog Sticking Head Out from Car

  7. Aether Wind (Cont’d) Observed Light Speed > c (Light from Sun Moving WithWind) Observed Light Speed < c (Light from Sun Moving Against Wind)

  8. The Michelson-Morley Experiment Michelson-Morley Simulator

  9. Michelson Interferometer Create interference between split light waves from light source (i.e., the Sun)

  10. EM Wave

  11. Electric Fields Result from Charged Objects

  12. Magnetic Fields Result from Moving Charges (Currents)

  13. The Generation of EM Waves (Antenna) Oscillating electrons within antenna creates magnetic field that changes in time. Magnetic field changing in time generates an electric field changing in time. Electric field changing in time generates a magnetic field changing in time. Process continues indefinitely. If you pick this signal up with your antenna, you could listen to advertisements, or horrible music (if the frequency is right).

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