A friend sent this to me:

 Optical Illusion

Which way are the flowers moving?

How and why is the effect created and perceived?

13 Comments

  1. Right I think. I’m not sure the reasoning behind this kind of thing but I do know that those pictures you are supposed to see things in I can’t see. I was told by a doctor with my vision I can’t see it…makes me feel a little left out 🙁

  2. Robin! — For me they move as my eyes indirectly look at them. Angle the view of your laptop screen and you might find they move in different directions. My eyes see them move one way then another then some stop while others “jiggle” back-and-forth. It’s a little bizarre!
    hterry — Don’t stare at them — kind of unfocus your eyes and then look at each flower without looking at them all and then wash your relaxed eyes across the screen. It’s pretty freaky when they all start moving, but not all people can see the movement. The angle of your screen, especially on a laptop, is important to play around with to find your optimal illusion!

  3. Whoops! I wrote Jeff’s comment above because he was logged in here (I love users who register!) and I became him for that note in name only. All comments and thoughts are all mine and not necessarily Jeff’s. 🙂 I logged him out and me in and now everything is as clear as flowers that don’t always spin!

  4. Crazy, Dave! I guess the monitor, and not the eyes, makes the illusion. Yes, having a great time here. The Knicks beat the Kings last night to win their first game of the season but it was hard to know who to root for so I just rooted for every shot that was thrown up to go in no matter the uniform color. Jeff and I are doing a presentation today at Noon our time so that should be fun and thoughtful as well.

  5. Chris — It is your monitor! Go find a laptop with an LCD screen and then tell me what you see. I think the movement comes from the way light falls as the artist drew the flowers and where the shadows are created. As our eyes move, the close proximity of colors gets blended by our eye as movement and when we scan our eyes over the flowers it’s as if the petals rotate and jiggle in the opposite direction of our gaze.
    Dawn – Welcome! Thank you for confirming I am not crazy and the flowers really do move! Now explain the why of how it happens! 🙂

  6. Hmm… that’s interesting hterry… I’m still here at Jeff’s office and if I stare at the image and let my eyes unfocus, the petals do begin to move really slowly. On my LCD monitor they jitter and spin — here on a regular monitor they barely move — but they do move and the ones that move the most are those on the edges of the image when I unfocus my stare on the center of the image.