CO2 - 06.05

A balloon filled with CO2 will transmit and amplify sound in a straight line. You will be able to hear the person sitting in front of you, but you won’t hear the visitor sitting direct next to you.

Some heavy gasses attain the same quality as parabolic reflector. This means that they are capable of transferring energy such as sound waves, from one place to an-other. Try to speak into the membrane and see what happens!

  1. Sit down on a chair opposite to your fellow visitor.
  2. Talk into the CO2 balloon.
  3. Listen to your fellow visitor’s message.

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