Random Facts #109 + Update Schedule News · 4:01am Jun 6th, 2017
LEDs work by using an electroluminescent material and a low current, as opposed to conventional bulbs, which utilize a thin filament and a high current.
Technically, with plenty of work and practice, one could theoretically convert a traditional lightbulb into a working vacuum tube. It’s already been done before, and certain people have gone one step further, and created vacuum tubes from scratch, using nothing but glass, wires, and mesh.