Related terms:
shen
nave
praga
time
clock
kaifeng
choir
facade
prague
sunset
shen kuo
horology
clepsydra
astrolabe
ecliptic
horizon
escapement
old town
latitude
degrees
timekeeping
clock tower
indicator
astronomy
movable type
han dynasty
astronomical
armillary sphere
tang dynasty
spherical astrolabe
Wikipedia sources:
Clock
Prague
Hour
Water clock
Astrolabe
York Minster
Strasbourg Cathedral
Armillary sphere
Song Dynasty
Prague Astronomical Clock
History of science and technology in China
Context for words:
astronomical
clock
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