Microwaves within your microwave are invisible, but it is possible to see them with a little creative preparation and some mechanical know-how.

Says microwave modder Zeke Kossover:

Advertisement

The changing electromagnetic field from the microwaves will make charged particles move, and so the electrons in the metal legs will move creating current. This current makes the lamps glow. I drilled a grid in a piece of 1/4 inch acrylic and slipped the lamps in [...] As the platter turns, the lamps light up showing where the microwaves are the strongest.

Zeke also noted that this rig didn't seem to hurt his microwave. Caveat microwaver.

[Spotted on Make]