
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
2000-100 BCE
1988
1986
1988
1988
1988
1986
1986
1986
1986
1986
1987
1987
1987
1839 (original); circa 1988 (replica)
1986
1986
4000-2001 BCE
1986
1990-95
1986-1988
1986-1987
1987
1988
1987
1986
1987
1987-1988
1987
circa 3000 BCE
2000-400
2000-400
1986
2000-1350
1988
1970 and post 1989