What are some optical illusions that you know of?

Anyone know any optical illusions?

• There is a green car on the the street with a fiberglass hood. Read it again did you notice the 2 the's? Anyone know any better ones?

• Answer:

  Hey what's up! Well this isn't an optical illusion but try this trick... Ask some one to say the word "pots" 10 times as fast as they can, then ask them very quickly "What do you do when you come to a green light?" When you do it right, the person will say "stop" instead of go. You see "pots" is "stop" spelled backwards. Your mind plays a trick on you. Try it and let me know how it goes. I also have one more. Ok, so you get the concept....Ask them to say the word "ten" 10 times fast and then ask quickly "What is an aluminum can made out of?" Most people will say "tin" instead of aluminum. You also can't play both tricks one one person cause by that time they would of figured it out already. (sorry, I did some editing up top, it's green light not red)