
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1990-1991
1990
1839 (original); circa 1988 (replica)
1989
1989
1989
1990-1991
1990
1990
1990
1990s
1990
1989
2000-100
2000-100 BCE
1988
1988
1990-96
1988
1988
1990
circa 1990
1990
1990s
1990
1989
1988
4000-2001 BCE
1990-95
1988-1990
1991
1990
1990
1990
1959 (designed); 2001(made)
1990
1988
early 1990s
1989
1989
1990
1990
1991
1988
1989
1988
1989-08
1990
1989