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Title: Rattleback
PIRA: 1Q 20.20

Demonstrates: Change in direction of rotational energy.
Description: A large block of wood with a diagonally symmetrical curved bottom surface.
Instructions:
Items Used:

Notes: Clockwise rotation gives change in direction. Math Description: None.

Size: 48" x 5" x 9". Condition: Good. Hazard: Toe masher.

Schematic: None. Tech Specs: None. Web Links:
History:

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