
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1839 (original); circa 1988 (replica)
1990
1990
1990
1990
1990s
1989
1989
1989
2000-100 BCE
1988
1990
1988
1990-96
1988
1988
circa 1990
1990
1990s
1990
1989
1990
1988
4000-2001 BCE
1989
1988-1990
1988
1990-95
1990
2050-1750 BCE
1989
circa 1988
circa 1988
circa 1990
1990
6000-5000BCE
1989
1991
1990
1988
circa 1990
circa 1990
circa 1990
1990s
30 CE
30 CE
2686-2613 BCE
1990
1988 (original launch date)