That and a few common supplies will let you build a pinhole camera/viewer that you can use to see an eclipse or the Sun. Just follow the steps in the captions. Feel free to experiment with the ...

Experiment by moving the paper farther or closer to the second piece on the ground to change the projected image. If you want ...

Here’s something to show people who don’t realize the power of 3D printing. This pinhole camera has one moving part which reveals the pinhole, letting in light to expose the 4×5 film inside.

Have you ever heard of solargraphy? The name tells you much of what you need to know, but the images created with a homemade pinhole camera and a piece of photographic film can be visually ...