[:PiraScheme#Mechanics: Table of Mechanics Demonstration]

[:MEEquipmentList: List of Mechanics Equipment & Supplies]

[:Demonstrations:Lecture Demonstrations]

Rattleback, 1M40.90

Topic and Concept:

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Abstract:

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Equipment

Location

ID Number

Rattleback

[:MechanicsCabinetBayA8: ME, Bay A8, Shelf #1]

Important Setup Notes:

Setup and Procedure:

  1. Place Rattleback on table.
  2. Spin in one direction
  3. Spin in the opposite direction
  4. If Desired tap on either end to initiate spin.

Cautions, Warnings, or Safety Concerns:

Discussion:

This Demonstration shows seems to violate the conservation of angular momentum but due to the asymmetrical shape of the Rattleback converts both energy from tapping the device and rotational energy in the non-preferred direction into rotational energy in the preferred direction.

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