
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1995
1992-1994
1993-1995
1993
1987
1989
1995
1986
1993
1990-1991
1994
1986
1992
1994-1995
1993-1995
1995
1995
1995
1987
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1990
1990
1990
1990s
1990-1991
1994
1986
1989
1988-1993
2000-100
2000-100 BCE
1988
1990-1995
1994
1994
1986
1989
1990