
Foucault Pendulum for Demonstrating the Earth's Rotation
1988
1988
1839 (original); circa 1988 (replica)
1989
1987
1987
1989
1989
2000-100 BCE
1988
1988
1990-96
1989
1988
1988
1987
1987
1989
1987
4000-2001 BCE
1988
1987
1988
2050-1750 BCE
1990-95
1987
1989
1989
1987
1988
1989
1989
1987-1988
1989
1987
2000-100 BCE
1988-1989
1989
1987
1989
1989
1988
1989-08
1987
1987-1988
1987
circa 3000 BCE
2000 BCE
1989
1988
1988