Lasermodulator - 04.07

This exhibit illustrates how a radio signal is transported by high-energy light. As you aim the laser at one of the three sensors you hear the sound of the radio through the speaker. The laser transported the signal of this sound.

Light consists of waves and particles and form part of the electromagnetic spectrum. The waves can be modulated to carry signals like speech, music or even an image.

  1. Turn on the radiosignal.
  2. Turn on the laser and aim it at one of the three sensors.
  3. Listen!

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