Student Project: How to Make a Pinhole Camera
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9. How it works
A pinhole camera works because the small hole you made with your pin, paper clip, or pencil acts like a tiny camera lens.
Light from the Sun enters the pinhole (or the holes in an object like a colander), it gets focused, and then it is projected out of the other side of the hole. When the projected light reaches a surface, like the second piece of paper, you can see the image that passed through the pinhole.
Learn more in the video above from artist Bob Miller’s Light Walk at the Exploratorium in San Francisco, California.
Source : https://www.jpl.nasa.gov/edu/learn/project/how-to-make-a-pinhole-camera/
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Date de Publication : 2016-10-28 12:16:54
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