Answers

CAUTION: This is not the understanding of all scientists who have ever lived and published papers (ask your momma if it is ok to read it).

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Here are the follow up answers to how the expansions and contractions are marked in the main post here:

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Fig. 2a

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Fig. 2b

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Fig. 2c

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Fig. 2d

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Fig. 2e

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Fig. 2f

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Fig. 2g

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Fig. 2h

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Fig. 2i

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Fig. 2j

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Fig. 2k

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Fig. 2l

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Fig. 2m

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Fig. 2n

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Fig. 2o

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Fig. 2p