
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1985
1990s
1985
2000-100 BCE
1988
1986
1987
1987
1993
1986
1985
1989
1986
1986
1986
1985
1985
1985
1986
1986
1986
1985
1986
1986
1986
1986
1986
1986
1990
1990
1990
1989
1993
1990-1991
1990-1991
1989
1990
2000-100
1985
1985
1988-1993
1985
1986
1986
1992
1985
1985-1988
circa 1990
1990s