
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1992-1994
1989
1994
1985
1985
1994
1996
1995
1990
1985
1995
1997
1985
1990s
1990-1991
1997
1985
1996
1996
1996
1996
1996
1996
1996
1996
1988-1993
1989
1997
1997
1990-1991
1986
1986
1986
1985
1985
1985
1986
1986
1986
1985
1986
1986
1986
1986
1986
1986
1990
1990
1990