During partial phases of a solar eclipse, one popular activity is to project and capture solar crescents when trees are in leaf. Tiny spaces between leaves can act as natural pinhole cameras, projecting dozens of solar crescent images on the ground. But such projections aren’t only visible when there’s an eclipse — they can displayContinue reading “Secret Sky: Seeing sunspots on paper”
The post Secret Sky: Seeing sunspots on paper appeared first on Astronomy Magazine.
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