Yes. It seems to be a more advanced version of a "persistence of vision" display. You'll see a number of you google it. The thing that makes this special, though, is the fact that it isn't just pixels on the sides of a globe; it has pixels on the inside, too. I'm assuming they're either using several arcs of LEDs, nested inside each other, or a square matrix of LEDs (likely cut into a circle, to fit in the globe). The trickiest thing would probably be to have all the LEDs visible from almost 360 degrees, otherwise you'd only be able to see a slice of the 3D image from any one angle. I'm also curious if the globe is just to protect the display, or if the display is in a vacuum bulb, which would theoretically allow for a much higher refresh rate, since air resistance wouldn't be an issue then.

@@darksunrise957I’m gonna guess with the base being 3d printed and attached like that it’s not going to hold a vacuum if he tried right now however I think you can buy connectors that are both vacuum sealed and allow some electrical connections to go through while it spins meaning he could program it from the outside without re-pressuring it

The dome is just to protect the mechanism from fingers, and protect fingers from the mechanism. It also looks cool. The leds are in a flat plane. Because it’s spinning they end up being visible in all directions. The brightness falls off at very glancing angles, and you can see that in the video as a dimmer strip down the centre.

@@piman13_71i wonder if you could seal the whole globe, then use magnets for the spin and inductive coupling for the power/signal transfer. I’m guessing power usage for the actual lights is pretty low. Brushes would work, too.