On June 21st, Cool Science set up a booth during the Manitou Springs community market located in Soda Springs Park to teach folks about optical illusions. The most exciting of these illusions were the ambiguous solids. These funky shapes are three dimensional, plastic objects that reflect light to take on new shapes when viewed from different angels.
One of the simplest of these ambiguous solids is the squircle—a portmanteau of the words “square” and “circle”—which kids had the chance to make using cut up toilet paper rolls right there at the Cool Science booth.
There were other optical illusions including a how light can make Pyrex glass invisible in ordinary vegetable oil, and how refractions of certain light can make a Ping-Pong-ball appear to pass through a solid wall.
Young or old, it was a good day to discover optical illusions while taking a casual stroll through Manitou Springs?