Get Your Science On: Flashy Photon Radio

This week Rachel shows us an awesome experiment to transmit sound using light.

Materials

MP3 Player
Flashlight
Solar Panel
Amplifier (We used a Lepy LP-808)
Amplified Speaker (We used a Honeytone Mini Amp)
Audio cables and speaker wire
Soldering supplies or another way to attach wires

How to build

Use an audio cable to run the output of the MP3 player to the amplifier. Run the speaker wire (both strands) from the amplifier (+/-) to the flashlight where the batteries would normally contact (the +/- terminals).

Attach the solar panel to the amplified speaker. To do this, we soldered it to a 1/4″ phone plug.