A series of teasers I designed in the format of flyers or stickers to be put at public places in order to make people think about some scientific/philosophical concepts/questions. They provide related keywords to google. I’ll try to make new ones when I have time. Feel free to email me if you’re interested in printing them as PDFs.
So these table surfaces are clearly very different sizes, right?
Wrong. Click on the picture to see a demonstration I’ve just prepared for you. If you think I’ve cheated, check it yourself with a ruler, or a piece of paper. This is one of the most mindblowing visual illusions I’ve ever seen (I had first seen it in a presentation by Pat Churchland on Beyond Belief conference – no, I wasn’t there, it was a video recording of the event). What amazed me more when I was preparing the demo today is that the illusion isn’t established only by the table legs (which is what I used to think): we still see them in different sizes when the legs disappear. The rotation is sufficient to deceive us, the legs just strengthen it.
By the way, the reason they don’t overlap exactly is that the corner angle is slightly different; the side lengths are really equal.
Lesson learned: use your fucking guides and ruler in Photoshop!
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