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Veritasium: Shadow Illusion

By Leah Segal, 04/24/2013
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[color=rgb(51,51,51)][font=arial][size=3]When sunlight shines through a small hole, it casts a circular image on the wall regardless of the shape of the hole. The size of the hole also doesn't affect the size of the image.[/size][/font][/color]
[color=rgb(51,51,51)][font=arial][size=3]This counterintuitive demonstration shows that the hole is acting like a pinhole camera, producing an image of the sun on the wall. Therefore the size and shape of the hole have no effect on the size and shape of the image.[/size][/font][/color]
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