I'm not going to explain this one, but I think you could draw a diagram for it. What does all that have to do with a pinhole camera? Instead of two LEDs, imagine you have a person standing in ...

Consider crafting a “pinhole camera” or projector at home — a simple and inexpensive device that allows for safe viewing of the eclipse from a unique perspective.

An earlier name for a pinhole camera was a camera obscura ... After cutting everything out, we followed the diagrams printed on the sheets of paper and used black fabric electrical tape to ...

In effect, this setup would be a gigantic pinhole camera. “To me, one of the most interesting challenges in space astronomy today is the detection of exo-solar planets,” said team leader ...