As followers of the Great Eclipse of 2017 already know, the safest way to see an image of an eclipse is to use a pinhole on a sheet of paper or cardboard to project the little crescent of sunlight. Raleigh had only a partial eclipse, so you get only a sliver. The pinhole was made with a ballpoint pen in a hurry. The aperture was not perfectly circular, so the crescent sun is too short. Still, I am proud to have produced optics on a slender budget.
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