Of course, you hear about Tesla coils, but it is really more of a Tesla transformer. The 3D-printed core holds the many turns of the secondary coil. The larger Tesla coil, amusingly, upset the ...

If not for [Nikola Tesla], we’d be pretty behind when it ... Don’t let the pictures fool you; it’s actually 3D printed! It uses one of those retro “vintage” light bulbs, which has ...