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The electric cat: Rotation without net overall spin
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10.1119/1.4748359
/content/aapt/journal/ajp/81/2/10.1119/1.4748359
http://aip.metastore.ingenta.com/content/aapt/journal/ajp/81/2/10.1119/1.4748359
View: Figures

Figures

Image of Fig. 1.
Fig. 1.

A textbook illustration of the “tuck-and-turn” model of cat rotation. The text accompanying the figure reads “The basic maneuver turns the U-shaped position inside-out, rotating the cat's back from the outside to the inside of the U. The front and rear portions rotate in opposite directions about vertical axes, conserving angular momentum.” (From Hudson and Nelson, University Physics, 2nd ed. Copyright © 1990 Brooks/Cole, a part of Cengage Learning, Inc. Reproduced with permission <www.cengage.com/permissions>.)

Image of Fig. 2.
Fig. 2.

A device to demonstrate torque-free rotation, the “electric cat."

Image of Fig. 3.
Fig. 3.

Sequence of “electric cat” rotation positions.

Image of Fig. 4.
Fig. 4.

Contour plot of the angle ratio as a function of the dimensionless length and mass parameters, according to Eq. (6) .

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/content/aapt/journal/ajp/81/2/10.1119/1.4748359
2013-01-22
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The electric cat: Rotation without net overall spin
http://aip.metastore.ingenta.com/content/aapt/journal/ajp/81/2/10.1119/1.4748359
10.1119/1.4748359
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