We want to build a EM instrument showing the existence of radiation.
chenglin lijamie wang
Description
We design a box just like the mp3 music box to play the electromagnetic sound. We put arduino, the circuit and the charger in this box. You can put this box near the electronic device to hear the electromagnetic waves they generate. The higher the frequency of the em waves, the higher the sound the box produces. Different from the music, what you hear is the invisible em waves.
INTM-SHU.130.1