Crazy audiovisual illusion  Sep 20 2011

The McGurk effect: the same sound plus two different mouth movements produces two different sounds.

Read more about the McGurk effect. (via ★interesting-links)

Mr. Angry and Mrs. Calm is a  Oct 26 2005

Mr. Angry and Mrs. Calm is a great optical illusion...up close, she's on the right but switches to the left when you view it from far away. (via bb)

Check out the moon illusion for yourself  Jun 19 2005

Check out the moon illusion for yourself this week; it's the lowest-hanging full moon in 18 years.