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Aug 17, 2020 at 8:00 comment added sintetico @alexarvanitakis Why chalk is not scale invariant? Of course we are talking about a regime where all relevant lengths are larger then the interatomic distances and structure details of the object.
Aug 16, 2020 at 19:35 comment added user21299 I wanted to upvote this but I realised the argument in second paragraph doesn't work: chalk -- the material -- is not scale invariant.
Aug 16, 2020 at 16:54 history edited sintetico CC BY-SA 4.0
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Aug 16, 2020 at 15:45 history answered sintetico CC BY-SA 4.0