Solar Eclipse, pin hole projector experiments

May 25, 2012 at 02:48 Leave a comment

You can just make a hole on a piece of cardboard or use a colander and find a good wall…

Image

Image

or to be more professional

DIY Pin Hole Projector from http://www.exploratorium.edu/eclipse/how.html

There are safe ways to view the sun. The simplest requires only a long box (at least 6 feet long), a piece of aluminum foil, a pin, and a sheet of white paper.The length of the box is important. The longer the box, the bigger the pinhole image. To find the size of the image, multiply the length of the box by the number 0.0093. For a box that is 1 meter long, the image will be 0.0093 meters (or 9.3 mm) in diameter. If your box is 5 feet (60 inches) long, your solar image will be 60 x 0.0093 = 0.56 inches in diameter. If you want to round things off, the size of the image is about 1/100th the length of the box.

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Entry filed under: Optic.

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