No Eclipse Glasses? Make an eclipse pinhole viewer/camera - Solar Eclipse Safety

Did you forget to purchase your eclipse glasses and discover them sold out everywhere? Don't worry! You can make a simple solar eclipse viewer with two thin, stiff pieces of white cardboard.

Punch a small pinhole in one piece of cardboard and let the sunlight fall through that hole onto the second piece of cardboard. With your BACK to the sun, let the sunlight pass over your shoulder through the pinhole and an inverted image of the sun will form on the second piece of cardboard like a "screen". To make the image brighter, move the screen closer to the pinhole. Rember, it should be a PINHOLE, not a wider hold. If you make the hole too large, you will get a sunbeam on your second piece of cardboard rather than an inverted image of the sun. Do not look through the pinhole at the sun. And never look directly at the eclipse!

And don't forget an eclipse shirt to show your enthusiasm!

Here's another good place to learn how to make an eclipse pinhole camera, projector, viewer. :)



References:
National Geographic :Build a Solar Eclipse Viewer