As we prepare for the Great American Eclipse, you might have your eclipse glasses ready. If not, another great way to view the eclipse is with a pinhole camera. They are extremely easy to make, and ...

Pinhole cameras can focus on small objects very close to the camera. Here's a 1:25 scale Impala model. One of my early pinhole photographs: a shot of the speedometer in my 1985 Honda CRX. That hooptie ...