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Infrared Waves

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Infrared Waves

  1. 1. Telephone 1. 2. 3. 4. 5. Metal or Optical-fiber cables Microwave towers Is used to transmit a Which can be either digital or Over long distances and can be sent By either Which uses Or by Which uses And orbiting A. Physical transmission B. Signal C. Satellites D. Analog E. Atmospheric transmission B D A E C
  2. 2. ReviewReview Radio waves Microwaves How cell phones work
  3. 3. Infrared (I.R.)Infrared (I.R.) More energy than micro and radio waves Shorter wavelengths Just below what human eyes can see Can’t see these!
  4. 4. InfraredInfrared Used for TV remotes Can’t see these!
  5. 5. InfraredInfrared Thermometers Can’t see these!
  6. 6. InfraredInfrared Night vision Thermal imaging Felt as heat Warm bodies give off infrared radiation Can’t see these!

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