Since ancient times, the Chinese believed the Earth had a centre.
Astronomers used observations of the lengths of the sun's shadow to find the latitude, which would help them fix provincial and territorial boundaries.
The location where an 8-chi (8.75 ft) long gnomon cast a 1.5-chi (1.64 ft) long shadow at noon on the summer solstice was considered to be the centre of the world, which is where they established their capital city.
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Ancient Observatories- Gaocheng, China
Ananya Nambiar
Created on August 26, 2022
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Gaocheng Astronomical Observatory
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Functions of the observatory:- Since ancient times, the Chinese believed the Earth had a centre.
- Astronomers used observations of the lengths of the sun's shadow to find the latitude, which would help them fix provincial and territorial boundaries.
- The location where an 8-chi (8.75 ft) long gnomon cast a 1.5-chi (1.64 ft) long shadow at noon on the summer solstice was considered to be the centre of the world, which is where they established their capital city.
Home
thank you!
Now you can reward yourself with this pretty picture :D