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Radio Silence

Demonstration

Test ways that radio waves can be blocked

multiple parts

5-15 minutes

drop in' visitors

In this activity, participants will investigate radio waves—one type of energy from the electromagnetic spectrum. While radio waves are invisible, we can interact with them through interference. Participants will experiment with both non-conductive and conductive materials to determine which is best at blocking radio waves, while discovering differences in the radio waves used by a range of devices including: portable radios, walkie-talkies, and/or Bluetooth speakers. Because different devices use different radio frequencies, some radio waves will travel better through certain materials.

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