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In case you haven’t heard, there’s a solar eclipse coming! But while eclipses are cool, unless you’re in the path of totality — i.e., the part of the country where the Moon will completely obstruct the Sun — you’ll need to take some safety precautions to safely view the eclipse. (Even then, you’ll still need to wear glasses before and after the moments when it’s totally blocked.) After all, just because part of the Sun is covered doesn’t mean you should look directly at the uncovered part of it. Eclipse glasses are a good way to go, but counterfeit models are making rounds on sites like Amazon. Plus, even if you buy certified ones, they might not make it to you in time.

Fortunately, there’s another option: a pinhole projector. Putting…

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