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Stereoscope
Source Institutions
In this activity, learners construct a device that allows them to view 2-D images in 3-D.
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Bike Wheel Zoetrope
Source Institutions
In this activity (posted on April 18, 2011), learners follow the steps to construct a zoetrope, a device that produces an illusion of action from a rapid succession of static pictures, using a 16" bik