On Twitter, @jagarikin posted this fantastic example of the "reverse phi illusion." Press play above. The boxes aren't actually rotating. I promise. From SoraNews24:
In very simplified terms, when our eyes see sudden transitions from either light to dark or dark to light, our brains perceive it as motion happening. Take yet another look at @jagarikin’s GIF, and you’ll notice that the edges of the cubes’ blue frames have a sliver of color to them. Sometimes they’re white, sometimes they’re gray, and sometimes they’re black, and as they’re cycling from one to the next, the video’s background is doing the same thing, and the result is the illusionary “rotation” of the cubes.
it's a spaceship until you see the picture upside down. This is cool – someone took a photo of UFO hovering over the scene of an accident. If you rotate the photo 180 degrees, it almost looks like the UFO is a car in a lake.
Every year, the nonprofit Neural Correlate Society, an organization “that promotes scientific research into the neural correlates of perception and cognition,” holds a competition for the Best Illusion of the Year. This year’s winner is the above “Dual Axis Illusion” created by Frank Force (USA). “This spinning shape appears to defy logic by rotating around […]
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