Why You Sometimes See Motion When Nothing's Moving At All

When you've been driving down a long, straight road, and you suddenly come to a stop, does the road seem to rush away from you? When you look at a waterfall, then glance away, does it seem as though the scenery is flowing upwards? It's called motion aftereffect, and it's a kind of visual adaptation. » 11/11/14 8:00am 11/11/14 8:00am

This optical illusion discovered by Aristotle is still a brain-twister

It's time for another bracing reminder that your brain is a screw-up and your eyes are liars. This particular illusion is known as the Motion Aftereffect Illusion. It's pretty simple. Look at enough motion steadily and your brain will get tired and punk you for fun. You can even do it with a real waterfall. Find out… » 11/20/12 1:27pm 11/20/12 1:27pm