What color do you see?
Using what you learned in the video, why do you think people see DIFFERENT colors?
Color Blind Testers- What Numbers do you see?
What is a Thaumatrope?
A thaumatrope is an optical toy that was popular in the 19th century. A disk with a picture on each side is attached to two pieces of string - or a straw in our case. When the strings are twirled quickly between the fingers the two pictures appear to blend into one due to the persistence of vision.