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typeracer

Pit Stop
Racer (spade1)
Race Number 291
Date Fri, 23 Jun 2017 22:11:27
Speed 50 WPM Try to beat?
Accuracy 95.9%
Rank 3rd place (out of 4)

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In two dimensions we say that a rigid body has only one rotational degree of freedom, whereas in three dimensions we say that a rigid body has three rotational degrees of freedom. This might lead you to infer that in three dimensions you need to have three scalar quantities to represent a body's rotation. Indeed, this is the minimum requirement.
— (book) by David M Bourg (see stats)

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