A Change to a Homemade Eclipse Viewer
A bout a week ago, I wrote about an eclipse viewer that I made out of a discarded cardboard box for us to use during our upcoming eclipse. I adapted this old shipping box to become a pinhole projection viewer. The sun is projected through a pinhole and onto a screen at the bottom/back of the box so the person viewing the sun isn't looking directly at the sun but is instead looking at a screen with the sun projected onto it. Actually, the sun in the sky is at the viewer's back so the person isn't even facing toward the sun. There is no getting blinded by the sun using this little homemade viewer. This little project turned out well. I have a large cutout to peer into the box toward the screen at the opposite end of the box and another cutout to mount a pinhole plate made of black construction paper. Making the pinhole in construction paper made it quick and easy to test different sizes of pinholes. After some experimentation, I sized the pinhole at 1/4 inch and that s