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The Magic Hooey Stick
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A piece of notched wooden dowling, with a smaller dowling "propellor" at ...

A piece of notched wooden dowling, with a smaller dowling "propellor" at one end, is rubbed with a small stick, which causes the propellor to rotate. On command "Hooey", the propellor stops and reverses direction, "magically". This is an excellent vehicle to address natural illusions and how science can effectively reveal them.

Subject:
Biology
Material Type:
Activity/Lab
Teaching/Learning Strategy
Provider:
Evolution and the Nature of Science Institutes
Author:
John Banister-Marx