
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1990-1991
1839 (original); circa 1988 (replica)
1990
1989
1992
1989
1990
1990-1991
1990
1990
1990
1990s
1989
2000-100
2000-100 BCE
1988
1988
1988-1992
1990-96
1989
1988
1988
1990
circa 1990
1990
1990s
1992
1990
1989
4000-2001 BCE
1992
1992
1988
1988-1990
1992
1992
1990-1992
1991
1990
1990
1992
1980s/ early 1990s
early 1990s
1992
1991-1992
1988
2050-1750 BCE
1990-95
1989