Early Instruments: Gnomons, Sundials, and Astrolabes | Astronomy High School Electives | Free K12 Practice

AST.018 Early Instruments: Gnomons, Sundials, and Astrolabes

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Skill Level🟢 Easy

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Progress to Next Level25% to Medium

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A student compares today's noon shadow with last month's noon shadow from the same rod. Which instrument is being used, and what limitation matters most?