#2882: Net Rotations

XKCD comic, described below.
Transcript

[Cueball is rotating around himself with only one foot on the ground, the other leg raised and bend above the ground and with his arms crossed in front of his chest. There are five circular curves around Cueball from head to legs to indicate this rotary motion. He rotates in front of a whiteboard. On the left of the board there are two vertical helix-like curves going from near the top to the bottom. They are crossing over each other at five points, the first four crossings close to the top, and then one near the bottom. Next to this there are ten rows of illegible scribbles, then a line, then another row of scribbles then a line and at the bottom a row of scribbles which is circled in. There is a large thought bubble above Cueball to indicate that he is thinking to himself while rotating in front of his calculations on the whiteboard.]

Cueball (thinking): ...and three lefts for going down the stairwell at work, two rights from cloverleaf interchanges, minus one for the Earth's rotation...

Cueball (thinking): Okay, that's a net of 17 right.

[Caption below the panel:]

Spacetime health tip: Remember to cancel out your accumulated turns at the end of each day to avoid worldline torsion.

(Sourced from explainxkcd.com)

Title text:For decades I've been working off the accumulated rotation from one long afternoon on a merry-go-round when I was eight.


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