
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1984-1986
circa 1980
1985
1985
1979
1978
1978
1981-1983
1985
1986
1979
1985
1984
1982
1984
1986
1986
1986
1984
1985
1984
1984
1984
1984
1984
1984
1985
1986
1985
1986
1986
1984
1981-1982
1981
1979
1981
1984
1983
1989
1985
2000-100 BCE
1982
1988
1980-1989
1980-1985
1980
1979
1982
1987