Optical Illusion Wheel
What is it?
A 5" tack board wheel on to which has been pasted a spiral pattern. The wheel has been glued to a smaller foam rubber disc, which has a drill chuck, adaptable shank.
How do you play?
The shank is inserted into the chuck of a small cordless drill and tightened. The wheel is held at a 90º angle to the subjects face and the drill is turned on. The subject stares at the rotating wheel for about 30-40 seconds. He then stares at a clean surface like the ceiling or better yet an overhead screen./FONT>
What outcomes do we get?
- We can demonstrate an aspect of how the visual sense operates.
- Students find the demo fun because it works on everybody. This is because the drill makes the wheel spin at a constant speed for all viewers.
What is included in the kit?
- 1 5" tack board wheel with a spiral pattern, which is attached to a shank that can be chucked into a drill
- 1 set of classroom instructions
How much does it cost?
The kit costs $ 5.
