The Shadow at Noon
How Eratosthenes measured the Earth with a stick and a shadow
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Wren: 30 min · Hollis: 33 min
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A stick in the courtyard
gnomon
The town with no shadow
summer solstice, zenith, tropic
Two pins in a melon
sphere, parallel, arc
Fifty times the road
stadion, meridian, circumference
Goodnight, little Tamit
the wind-down