Optical illusions

Optical illusions are an excellent way to prove that our visual perceptions are not simply the result of the pattern and nature of photons hitting our retinas. They prove that our brain makes big assumptions to simplify the task of understanding the world.

Here are two neat ones, from a blog that promises to post more:

At some previous point, I am sure I mentioned the compelling dragon hollow face illusion.

Author: Milan

In the spring of 2005, I graduated from the University of British Columbia with a degree in International Relations and a general focus in the area of environmental politics. In the fall of 2005, I began reading for an M.Phil in IR at Wadham College, Oxford. Outside school, I am very interested in photography, writing, and the outdoors. I am writing this blog to keep in touch with friends and family around the world, provide a more personal view of graduate student life in Oxford, and pass on some lessons I've learned here.

3 thoughts on “Optical illusions”

  1. You see embedded spirals, right, of green, pinkish-orange, and blue? Incredibly, the green and the blue spirals are the same color. At first I thought Richard was pulling our collective legs, being a trickster of high magnitude. So I loaded the image in Photoshop and examined the two spirals. In the two squares displayed below, the one on the left is colored using the same color from the blue spiral, and on the right using the green spiral.

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