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By on April 26, 2007, with 71 Comments

Hey everyone, I just drank my coffee as announced in previous post. The reason for such quick update is because I had little trouble viewing newest illusion in my Optical Illusion of The Day Yahoo Widget. Do you see this one in Google Homepage, Mac Dashboard widget or Yahoo Widget? Please comment, because I am not sure should I fix it, or it was just a glitch (like we had one before). Anyhow, this illusion below, even though simple, works really well. It was discovered by Dan Sheffield, who wrote the following:

“Hey Mr Illusion man, I hit upon this one whilst messing about in Adobe Illustrator, it’s pretty subtle – in fact I’m not sure if I’m imagining it or not. To me it looks like it’s slowly rotating. It’s simply three stars layered on top of each other with the colors (cyan, magenta, yellow) mixing to form black. Thanks for the fantastic site, I love it.”

Question & Simple Rotating Cog


71 Responses
  1. caff says:

    sorry but A. this does nothing for me and B. it doesn’t come up on the widget

  2. Olly says:

    Works for me, especially if I’m not looking directly at it, like when reading the text above.

    My Google widget works ok too.

  3. Anonymous says:

    In Google “Mighty Optical Illusions” it’s OK.


  4. AK says:

    Yes, it seems to be rotating. However, it is doing it extremely slowly. My advice is to look at the middle of the picture and unfocus your eyes. Click on the illusion, it is easier with a white background. Also, to me it looks like it is also getting a bit smaller when I unfocus my eyes

    btw i have no problem with the google homepage thing, not sure about widget.

  5. Daniel says:

    It is showing in Google. I don’t see this moving it just looks like it might be vibrating a little.

  6. sanna says:

    I didn’t see anything moving..

  7. Ricky says:

    nice and accidental illusion, it does slowly rotate for me too

    off topic, a tip for the site, every time i read the description of the illusion, well im not beeing rude but i just want to read the illuision bit and not the rest, and its soo annoying to search like 3 paragrapgs to find it were you talk aboout the illusion and not other stuff, some times when its a long description i cant even find it and i just give up on it when i could of really enjoyed the illusuon, cant u make like the actualy description on bold or something, this one wasnt too hard coz u pasted a quote, but does anyone else agree

  8. Anonymous says:

    my widged says “loading…” for 5 minutes now.
    by the way: this is an extremly cool blog! i found you a month and have been coming back every day since then.

  9. Kiki says:

    oh nice. it does work on google btw

  10. Tobias says:

    Illusion not showing in widget.

  11. w.j.doorn says:

    My Google widget is working properly.

  12. Anonymous says:

    wow you are Right… it moved a little.

    Sweet site man!

  13. Neat-Nit says:

    Nice illusion (I didn’t see it yet)

  14. Anonymous says:


  15. Anonymous says:

    No for me it is not rotating, it is simply shrinking. dont know why? Great Illusion and nice web

  16. Badslats says:

    Nice ! I get dizzy looking at it…

    I have it in my google homepage and it ‘s always there (even thisone). Well is it al te time in a smaller size than the original on your site, so most of the time I have to click it to get the illusion correctly.

  17. Schaianne says:

    I saw this with my Google homepage just fine.

    This pic gives me a slight headache to look at it … but yeah, looks like it wants to rotate. Wild.

  18. Anonymous says:

    Yea, I Can see it but not if i’m looking directly at it. Only if i’m looking off to the side.

    Anyone else the same?

  19. Anonymous says:

    its moving slowly… but still cool

  20. Anonymous says:

    I have had trouble seeing my Mac Widget Illusion of the Day for the past couple of days. I thought it was my net connection then I read this post and realised that it’s not me.

  21. John says:


  22. Anonymous says:

    First post lol

    Been there, done that- pretty much a copy of 500 previous illusions. Show some originality! you can do better than this!

  23. Anonymous says:

    I see it on the google homepage.

  24. Katie says:

    I saw it on google.

  25. Haha951 says:

    I don’t see it in the Yahoo widget, but i see it on the site. It just links to the main page.

  26. Anonymous says:

    yes it works in google

  27. Fly Boy says:

    Looks to me like it is pulsating.

  28. Anonymous says:

    I can see it in on my Google page. Keep up the good work :)

  29. Anonymous says:

    Doesn’t appear to rotating…is therea certain way I should look at it, eg for 30 sec in the center or something?

  30. ncarter says:

    It is indeed very subtle. When I stared at the ceter and looked past it, it seemed to be rotating VERY slowly.

  31. Katz says:

    I had to look off to the side to see it start to rotate.

  32. Tony Ward says:

    Hello V, can’t see any ‘slow rotation’ on this one but it’s probably just me…also, I’m using the P.C. widget and it’s not showing up on it.

  33. Anonymous says:

    I agree there is an illustion here. It’s simple yet effective

    I am not having problems viewing your illusions using the Google Widget

    And I just wanted to say I love this sight. I teach college and actually use this page and the illusions in class for discussions on perception. You have a GREAT variety.

  34. Anonymous says:

    it work for me..
    only when ii look at something else though.

    love the site! x

  35. ToriKaye says:

    Hey… This was a pretty cool illusion. At first I didn’t think that it was working, but then i really thought i was loosing it when it started to rotate.
    !Thanks for the illusion!

  36. Anonymous says:

    I’m sorry, I don’t see it. All I see is a huge blur until I concentrate on one spot. Is it just me, or does this thing hurt your eyes too?

    By the way, I can see it on the Google Homepage.

  37. QueenKnowitAll says:

    I have an apple widget and it won’t work. It just keeps loading.

  38. Anonymous says:

    It can be seen in google. Pretty cool

  39. Jason C says:

    I dont know if it spins but it sure does wobble and wiggle.

    1st Post

    Keep ‘em coming Illusion Man

  40. Iggins!!! says:

    i see it slowly rotating, not much, but neat!

  41. Anonymous says:

    yeah, saw this one on my google home page. It’s so simple… you can’t help but wonder if you’re imagining…

  42. Dr. Jason says:

    Does not show in Mac Widgets…

    Keep up the great work! :>

  43. John says:

    For me it sways a little from left to right then back. Also it looks like it vibrates!

  44. jesse says:

    i don’t see it…

  45. Anonymous says:

    first comment and cool

  46. Anonymous says:

    works when you move the page up and down. great job.

  47. Elliexx ANIMALS ROCK!! Abixx's friend! says:

    err… anonymous – ur 45th – not 1st!
    yh works 4 me 2. really kl! :)

  48. Shaun says:

    Not very good…. I like the snakes one though! Trippy! http://www.moillusions.com/2006/03/mini-rotating-snakes-illusion.html

  49. At School says:

    Ya if i dont look directly at it it sorta kinda works and if i look right at it it just sits there and hurts my eye’s.

    I dont show up on my google widget either and i has happened before so i do belive it is probably a glitch but What Do I Know.

  50. Anonymous says:

    didn’t see any rotating effect… but it does work well as one of those illusions where you see an after image once you look away…

  51. Stine says:

    I noticed that usually from the Mac widget I get directly linked to the specific illusion it shows. This time my click-thru led me to the main MOI page, not this specific illusion’s page. Perhaps that has something to do with why it doesn’t show in the Mac widget. Just a theory.

  52. Totof says:


    Do not qork in my Yahoo widget, but OK on the site (very cool by the way…)

  53. Anonymous says:

    Ur not supposed to look directly at it for it to work look at the txt or somethin and you’ll c it rotating…BTW Mac dashboard widget doesnt work ><

  54. caff says:

    I got it to work!!!
    I printed the page, cut out the cog, stuck a pecil through the middle and spun it around. WORKED A TREAT

  55. Anonymous says:

    first i was like what then i was like OHHHHHHH then i was like time for dinner

  56. Anonymous says:

    that thing is awesome!!! i just cant stare at it long enough to see it completely switch position… ):

  57. Sarah says:

    to me it looks as though it is very subtly pulsating.

  58. Beth says:

    This is supposed to be looked at with 3D glasses.
    It’s supposed to be a 3D object not a spinning cog..

  59. Rob Denham says:

    It looks like Lisa Simpson.

  60. james says:

    if you look at it with 3D glasses (if you have any…) it looks like its leaning back

  61. Ember Mclain Fan says:

    …You need to put the song Remember My Name by Ember Mclain on this site…

  62. Grace says:

    “Mr. Illusion Man”?

    • CoDfan12 says:

      lol right? walkin down the street and someone walks up to you like HEY!!! YOU!!!!!! Hi mr. illusion man!!!!!!! and your like o___O

  63. Lenore says:

    Whilst I was reading the description I could see the thing slowly moving diagonally towards my mouse, and then when I looked directly at it, and let my eyes go a bit fuzzy, it started pulsating! XD

  64. JD says:

    If you stare in it, long enough and back up from the screen you can even see lines form the points.

  65. CoDfan12 says:

    of youstare at it long enough you can see a square popping out from the center….

  66. Trey says:

    i see it. just like most optical illusions or even like the stars in the sky, you cant look directly at it. if you move your eyes in and around the text printed above, you should be able to notice it look moving around very slightly

  67. Trey says:

    yep, it works for me too, just like most optical illusions, even the stars in the sky, you just cant look directly at it…try looking above at the text and you will see it slightly moving.

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