"Persistence of vision display" or POV display are LED devices that compose images by displaying one spatial portion at a time in rapid succession.

One example are Hologram Fans.

https://video.nostr.build/1a9f2bcbd9cbd1b8a325165f90f5b5d82c14e35bda134fb501fbafc3908270ad.mp4

#interesting #hologram #led #videos #amazing