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Archaeologists Discovered The Remains Of A Large 2,500-Year-Old Ancient Egyptian Astronomical Observatory Used To Track The Movement Of The Sun And The Stars
The sundial was made up of a limestone slab nearly 16 feet long, topped with five flat limestone blocks. Three were vertical, and two were horizontal.
Smith College8y
Chaldean Sundial, Greece, 320 BCE
The inventions of the hemispherium and the hemicyclium are attributed to Berosus (356-323 BCE), a Chaldean priest and astronomer who brought these types of sundials to Greece. Both dials use the shape ...