The Euler machine
Autor: | R E Benenson, J C Kimball |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | European Journal of Physics. 23:95-102 |
ISSN: | 1361-6404 0143-0807 |
DOI: | 10.1088/0143-0807/23/2/301 |
Popis: | In order to illustrate Euler's equations for rotation, we have constructed an apparatus in which a circular disc is attached to horizontal axle, such that the disc axis and axle are at a 45° angle. The total angular momentum and constant angular velocity vectors are therefore not collinear. The first experiment measured the torque necessary to maintain a fixed axis of rotation. After the constraining torque is removed, the resulting oscillation makes an interesting demonstration of the thrust produced by an off-axis wheel. The amplitude of the axle's oscillation around a vertical axis has been measured and analysed using angular momentum vectors in a rotating system. |
Databáze: | OpenAIRE |
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