Safe alternative to solar eclipse glasses
Channel: AReResearch
Date: 2015-03-18

If no solar eclipse glasses are available, this crisps can solution is a safe way to watch the eclipse. It is based on the principle of the camera obscura.
The quality of the projected image is a tradeoff between image sharpness and brightness as determined by the size of the hole and the length of the cylinder. - So don't expect too much, but at least it won't damage your eyes.
*** Never look at the sun - only watch the projection! ***