Have a Merry Christmas and Happy Holidays!
Good demonstration of how the mind interprets what you see based on past knowledge. We've watched this many times and still are amazed.
I've read where some people can't see the illusion. Check out the Poll in the forums to see how many people see it and let us know if you do.
The best video I've ever seen demonstrating centrifugal force. Note that the man pouring the tea is the pilot, Bob Hoover. Also keep an eye on the white ball dangling from the dashboard. Now that's a smooth roll!
A perfect circle indeed!