Measuring the Universe: Our Historic Quest to Chart the horizons of Space and Time by Kitty Ferguson

Measuring the Universe: Our Historic Quest to Chart the horizons of Space and Time

Kitty Ferguson

352 pages • first pub 1900 (view editions)

nonfiction history science challenging informative slow-paced
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More than 2,000 years ago, Eratosthenes, in Alexandria, used a stick, a hole in the ground, sunllght at summer solstice, and elementary geometry to measure the circumference of the Earth with surprising accuracy, long before anyone was able to cir...

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