Weird moving elevator buttons, why so blue?
April 24, 2011 9:00 AM Subscribe
Why do the elevator buttons seem to be moving? My eyes deceive me!
posted by greatgefilte to science & nature (6 answers total) 1 user marked this as a favorite
For the past month or so, I've noticed that whenever I'm in the elevator of my building and looking at the floor that's selected, I'm able to make the button move, visually, by focusing my eyes on it and moving my head. Try the same thing with the buttons that aren't on, and nothing happens.
Is this a known optical illusion? Does it have something to do with blue light in particular, or wearing glasses?
The buttons in question look a lot like these
, only they're square.