I play tetris too (hkgwife)

Race #6867

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Official speed 114.07 wpm (36.50 seconds elapsed during race)
Race Start April 6, 2017 1:07:02pm UTC
Race Finish April 6, 2017 1:07:39pm UTC
Outcome No win (2 of 4)
Opponents 3. philerd (102.96 wpm)
4. sanicdehedgehog (102.57 wpm)
Accuracy 97.0%
Points 0.00
Text #3622275 (Length: 347 characters)

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.