Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Nocturnally roving weird, purple jellydots

  1. Jun 21, 2005 #1

    Gokul43201

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    1. Look at the whole picture from a distance,
    2. Follow the green spot closely and see what happens to it,
    3. Now focus hard, on the cross in the center ...

    http://www.i-am-bored.com/bored_link.cfm?link_id=11084
     
  2. jcsd
  3. Jun 21, 2005 #2
    Whoaaa! Duuuuude! Ya shoulda, like warned people who are on acid not to go there, man.
     
  4. Jun 21, 2005 #3

    matthyaouw

    User Avatar
    Gold Member

    Ok thats pretty crazy... Can anyone explain to me what in the hell is going on?
     
  5. Jun 21, 2005 #4

    honestrosewater

    User Avatar
    Gold Member

    I think it's because you aren't moving your eyes. Your eyes usually move around slightly so some nerves can rest and/or your brain can construct the image. But I could be wrong. I'll ask my magic 8 ball.

    It's called the Troxler effect or Troxler fading or Selective Peripheral Fading.
    http://cognet.mit.edu/posters/TUCSON3/Lou.html
    http://www.troxlerforum.ch/
    I couldn't find much on it quickly.
     
    Last edited: Jun 21, 2005
  6. Jun 21, 2005 #5

    JamesU

    User Avatar
    Gold Member

    what does that have to do with purple roving nocturnal jelly--- oh, jellydots! gotcha :wink:
     
  7. Jun 21, 2005 #6
    Actually, there is no green spot, just blank gray.
     
  8. Jun 21, 2005 #7

    Gokul43201

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    That is true.

    Also, try hyperphysics for "rods and cones".
     
  9. Jun 21, 2005 #8

    Ivan Seeking

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Hey, I've never seen that one before! Very cool.
     
  10. Jun 21, 2005 #9

    Evo

    User Avatar

    Staff: Mentor

    If you move your eyes in a circle following the dots, you cannot see the "green" dot, they all remain "pink" (they look closer to pink than purple)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Nocturnally roving weird, purple jellydots
  1. Who's nocturnal? (Replies: 15)

Loading...