What everyone should know about Foucault pendulums and how they prove the earth rotates.
- 15 pages : illustrations ; 28 cm
- A scriptographic presentation .
- Scriptographic presentation. .
Cover title. "Smithsonian Institution."--Cover.
Foucault's pendulum. Pendulum.
Earth (Planet)--Rotation.
PendulumScience Not Geographic Foucault education Smithsonian, Timekeeper (general)