
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1839 (original); circa 1988 (replica)
1987
1987
2000-100 BCE
1988
1988
1990-96
1987
1987
1988
1988
1987
1988
4000-2001 BCE
1987
1988
1990-95
1987
1987
1988
6000-5000BCE
1988
1988
1989-08
1987
1987
1988
1987
circa 3000 BCE
circa 3000 BCE
1988
1988
1988
1988
1988
1988
1988
1988
circa 2000 BCE
1988
1987
1987
1988
1987
1988
1988
1987
1988
1987