 |
|
|
Eratosthenes - Measurement of the Earth | A Wisdom Archive on Eratosthenes - Measurement of the Earth | | Eratosthenes - Measurement of the Earth A selection of articles related to Eratosthenes - Measurement of the Earth | |
|
|
More material related to Eratosthenes can be found here:
|
|
|
| | |
Eratosthenes, Eratosthenes - Measurement of the Earth, Eratosthenes - Named after Eratosthenes, Eratosthenes - Other work, Eratosthenes - Short summary of Eratosthenes' life, Eratosthenes - The mysterious astronomical distances, Ancient weights and measures of Eratosthenes time.
| | |
|
ARTICLES RELATED TO Eratosthenes - Measurement of the Earth | | | |  Eratosthenes - Measurement of the Earth: Encyclopedia II - Eratosthenes - Measurement of the EarthEratosthenes knew that on the summer solstice at local noon on the Tropic of Cancer, the Sun would appear at the zenith, directly overhead — though Syene was in fact slightly north of the tropic.
He also knew, from measurement, that in his hometown of Alexandria, the angle of elevation of the Sun would be 7° south of the zenith at the same time. Assuming that Alexandria was due north of Syene- Alexandria is in fact on a more westerly longitude- he concluded that the distance from Alexandria to Syene must be 7/360 of the total circumference of the Earth.
The distance between the cities was ...
See also:Eratosthenes, Eratosthenes - Short summary of Eratosthenes' life, Eratosthenes - Measurement of the Earth, Eratosthenes - Other work, Eratosthenes - The mysterious astronomical distances, Eratosthenes - Named after Eratosthenes Read more here: » Eratosthenes: Encyclopedia II - Eratosthenes - Measurement of the Earth |
| |
|
|
|
|
| |
|
|
|
|
More material related to Eratosthenes can be found here:
|
|
|
|
| |
