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Smeaton's Apparatus for Determining the Efficiency of Water Wheels
1988 (model); 1752 (original)
Stone slab with seven holes for cosmetic ointments, Egypt, 1991-1786 BCE
Classical & Medieval Medicine
Curved sensor net used to record electrical signals of the brain, Europe, 1990-1998
Psychology, Psychiatry & Anthropometry
Square pavement brick from Babylonia (Southern Iraq), 2nd millennium BC.