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Racer एक नेपाली (manepali)
Race Number 594
Date Wed, 26 Apr 2017 12:09:21 +0000
Speed 106 WPM Try to beat?
Accuracy 95.6%
Rank 1st place (out of 4)
Opponents cookies820 (2nd place) eagles123 (3rd place) sneakywill (4th place)

Text typed:

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.
Physics for Game Developers (book) by David M Bourg (see stats)