Awesome Fiber Optics

It’s easy to find LED grids that can be programmed to display animations. So this build by Dr. Tõnis Gadgets that uses fiber optics to direct light into a smaller matrix seems unnecessarily complicated. It still looks cool, like something out of the engineering lab in a science fiction movie. The display was inspired by Elliotmade’s fiber optic display from Instructables.

The Action Lab shows off the unusual optical properties of Ulexite, a mineral that looks semi-opaque but shows objects it’s placed on top of. Also known as “television stone,” the rock transfers light through tiny tubes that act like organic fiber optics. You can find chunks of the stuff on Etsy if you want to try it yourself.