
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1993
1987
1989
1986
1993
1990-1991
1986
1992
1987
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1986
1990
1990
1990
1990s
1990-1991
1989
1988-1993
2000-100
2000-100 BCE
1988
1986
1989
1990
1986
1988
1988-1992
1990-96
1993
1992
1992
1986
1839 (original); circa 1988 (replica)
1989
1987
4000-2001 BCE
1989
1988
1988