6th week #1

Okay let's see what we did this time....

OH! we were looking at the optical illusions. They are so interesting. I always try to figure out how it works, but I never do. That is why they are called "illusions." I like looking at them though. "Spinning Lady" is my favorite :). I think that is the one that I will never be able to figure out what is really going on.

It was a good lecture.