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