At one point in time, Tesla coils were actually used for something specific, like wireless telegraphy or electrotherapy. As technology advanced, it has shifted to a slightly more enjoyable purpose: entertainment.
This Mini Acrylic Tesla Coil Project is one of the best portable units out there and an easy project for any electricity wizard. It’s made entirely of acrylic plastic, and the best part: Every piece is totally transparent. With the lights out, it looks like the electricity is alive in midair.