Hopefully everyone knows to never look directly at the sun, even during an eclipse.
We had about a 45% solar eclipse here this afternoon and decided to protect our eyesight and have some fun being able to see it.
Did you ever make a pinhole camera in elementary school?
We made a small, precise hole in a piece of cardboard, then held that between the sun and our piece of paper to project the shape of the partially eclipsed sun onto it. Then we experimented using a magnifying glass between the cardboard and the paper, which focused the projected image better.
Fun stuff for a Thursday afternoon.