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3-Hole Punch Pinhole Projector

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This pinhole projector uses triangular, circular, and square holes to help explore how and why pinhole projection works to create real images of the Sun.

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3-Hole Punch Pinhole Projector

3-Hole Punch Pinhole Projector

This pinhole projector uses triangular, circular, and square holes to help explore how and why pinhole projection works to create real images of the Sun.