Flattening the Earth – 1D52.10

- Hang the Hoberman Sphere.
- Rotate the sphere and, like the Earth, it becomes oblate.
- Its equator moves outward and its poles draw together.
- Central forces push the sphere’s center outwards, narrowing it’s radius.

Location: Jacobs B122 - Shelf 283
 

Water Parabola – 1D52.20

- A rectangular flat glass container mounted on ball bearings is filled with colored water and spun.
- As the setup rotates, one can observe the parabolic curve formed by the water's surface.

Location: Jacobs B122 - Shelf 279