Watch Laser-Blasted Easter Eggs Become Animated Spirographs

Video: If you thought the funky tie-dye Easter egg designs you created this Easter raised the bar, you've got about a year to try and top what Jiri Zemanek of the University of Prague came up with. His Easter eggs feature looped animated designs that look like a Spirograph has come to life.

To create the effect, an egg was first covered in a photochromic paint that reacts to light. Its colour temporarily changes from white to violet when blasted with a laser salvaged from a Blu-ray player, and by precisely controlling that laser's motions, he creates intricate -- but temporary -- animated designs as the egg spins at high speeds.

[AA4CC via IEEE Spectrum]