36
1450 days ago
Simple equipment for projecting an image of the sun. One side of binoculars, a stand, white surface.
I love to do science and find out how things work. I also enjoy helping other people to find things out for themselves.
36
1450 days ago
Simple equipment for projecting an image of the sun. One side of binoculars, a stand, white surface.
0 Comments
Realtime comments disabled