When you first click on the link (http://courses.ncssm.edu/gallery/collections/toys/opticaltoys.htm)
You will see twelve icons. Two are moving, and the other icons are pictures of a box, or weird bowls or a lens. If you click on any one of the icons, you will be brought to a page where the picture on the icon will be explained.
My favourite optical toy is the Phenakistoscope.
The Phenakistoscope is my favourite because of how it works. The scope works by using the principle of motion to create an illusion of motion.
My favourite is an image of dancers waltzing around the dance floor. It really looks like the image is moving, and it is very hard to see where the images stops to repeat.
For the link again,
http://courses.ncssm.edu/gallery/collections/toys/opticaltoys.htm
