6 amazing optical illusions

August 2, 2011 | By Abraham | 30 comments

In the April 1971 issue of New Scientist magazine, Allan Neil present his new type of optical illusion…

Full scale research has not yet begun on the information-processing mechanisms which respond to the subtle factors in these illusions, but the preliminary studies have not overestimated their importance.

Here are 6 examples of these truly remarkable illusions…

Amazing, huh?

(via Ironic Sans, Lemon Harangue Pie)

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30 Comments

  1. Matt says:

    I’ve seen most of these before, but I think 6 might not be real. I can’t see any figure to begin with.

    1. Do Doey says:

      Ya think?

      (It’s a joke, everyone can tell this, so instead of looking clever by spotting the “photoshop” you look ridiculous)

      1. Steve says:

        It’s a joke, everyone can tell this, so instead of looking clever by spotting the “comment” you look ridiculous

        1. Do Doey says:

          It’s a joke, everyone can tell this, so instead of looking clever by spotting the “comment” you look ridiculous

          1. pf_flyer says:

            It’s not a joke, though everyone doubts this, so instead of missing the point and looking obdurate, you smile . . and close your eyes . . and see it clear

  2. John Reinert Nash says:

    The rest of the 1971 New Scientist is worth checking out (publication date April 1, 1971, of course). http://books.google.com/books?id=Ge35wKZLmNsC

    On page 26, next to an article talking up the imminent arrival of holographic storage (still waiting….), there’s commentary about the newfangled LEDs: “…[N]o one really knows just how far [the price] must fall before LEDs begin to really bite into the market–some put this at $20 million to 25 million in the United States alone. … Companies in the gas discharge display tube field say ther are not at all concerned.”

  3. Clayton says:

    The key word in #4 is “boxes” – not squares! I think these aren’t optical illusions as much as they’re riddles.

  4. Henry says:

    That’s incredible! I get most of them but that pipe really looks bent and no matter how quick I look away I still can’t see number 6. I even tried wearing a see through blindfold – didn’t work. I think it’s like those sensors you get on the fridge light – they know when you’re looking somehow.

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