An interesting way to amplify an MP3 player's sound. Wrap paper into cone shapes and attach the cones to the earplugs. If you start off making small cones and then increase the size of the cones you will also increase the sound, so Hanna informed me. Set up this way, Hanna can hear her music from her MP3 player pretty well in her bedroom. Who needs to spend extra money on plug-in sound stations when you can make these?
Smart kid! Cool experiment. :)
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