What is the optimal size for the hole in a pinhole projector to ensure clear and focused images of a solar eclipse?

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1025255

2026-01-27 19:10

The optimal size for the hole in a pinhole projector to ensure clear and focused images of a solar eclipse is typically around 1 millimeter in diameter.

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What is the optimal size for the hole in a pinhole projector to ensure clear and focused images of a solar eclipse?

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1025255

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