Marvin and Milo

Explore physics the exciting way, by trying out a simple and fun experiment. This month, Big bubble maker Don't forget to check back next month for the next edition...

Musical coat hanger

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What you need

  1. a metal coat hanger
  2. two pieces of string
  3. a fork


  1. Tie a piece of string to each corner of the coat hanger and wrap the ends around your fingers.
  2. Put your fingers in your ears and ask your friend to tap the hanger with the fork.

Results & explanation

It sounds louder because vibrations travel through the metal and string more easily than through air.

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