Advertise here with Carbon Ads

This site is made possible by member support. 💞

Big thanks to Arcustech for hosting the site and offering amazing tech support.

When you buy through links on kottke.org, I may earn an affiliate commission. Thanks for supporting the site!

kottke.org. home of fine hypertext products since 1998.

Beloved by 86.47% of the web.

🍔  💀  📸  😭  🕳️  🤠  🎬  🥔

posted by Jason Kottke  ·  gift link

Rotating Circles Optical Illusion

This is one of the best optical illusions I’ve ever seen: aside from rotating, these circles don’t move.

The left/right/up/down arrows were freaky enough but the in & out arrows really blew a gasket in my brain. For proof that the circles don’t move, blink your eyes quickly as you watch or check out this gif. (via @jagarikin)