Adler Planetarium, Chicago
“The stars in order twinkle in the skies,
And fall in silence, and in silence rise.” — William Broome, 1689-1745
American southwest used walls and windows to note the season (c.1100):
Chinese astronomers watched the sun’s shadow move each day to measure the length of the year. (c. 1200):
Astronomers at Machu Picchu watched the rising of sun through windows to mark holy days (c. 1500):
These ancient methods foreshadowed the later astronomy development… Photos were taken at the Adler Planetarium, Chicago.
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