
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1984-1986
1984; 1983
1987
1986
1985
1984
1986
1987
1984
1986
1986
1986
1984
1985
1984
1984
1984
1984
1984
1985
1984
1984
1984
1985
1986
1986
1986
1985
1986
1986
1986
1986
1986
1986
1984
1984
1986
1985
1985
1984
1985
2000-100 BCE
1986
1985
1988
1985
1988
1985
1990-96