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Showing results 1 to 6 of 6

Pupil
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In this activity, learners explore their eye pupils and how they change.

Pinhole Viewer
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In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.

Magic Wand
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In this activity about light and perception, learners create pictures in thin air.

Stroboscope
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In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary.

Anti-Gravity Mirror
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In this demonstration, amaze learners by performing simple tricks using mirrors. These tricks take advantage of how a mirror can reflect your right side so it appears to be your left side.

Stereoscope
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In this activity, learners construct a device that allows them to view 2-D images in 3-D.