
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1989
1985
1985
1985
1985
1985
2000-100 BCE
1988
1986
1986
1986
1985
1985
1985
1986
1985
1986
1986
1989
1986
1986
1986
1986
1986
1986
1989
1989
1985
1986
1986
1985
1985-1988
1988
1988
1987
1987
1985
1986
1986
1986
1986
1986
1985
1987
1985
1988
4000-2001 BCE
1985
1839 (original); circa 1988 (replica)