
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1992-1994
1989
1994
1994
1996
1995
1990
1989
1995
1990-1991
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1990
1990
1990
1990s
1990-1991
1989
2000-100
2000-100 BCE
1988
1990-1995
1996
1996
1996
1993
1996
1996
1996
1996
1996
1988-1993
1989
1990
1994
1986
1994
1986
1988