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Post date November 9, 2020

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Ice cube II
Along similar lines
Methane
Rule of 72
The bubble chamber II

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Bob Ruyle on Count to five
Reply to Lewis Corner comment: Maybe not so satisfying, but it is possible to expand the equation using trig identities…
Lewis Corner on Count to five
2sin(a)sin(5a)=sin(3a)sin(9a) can be ‘solved’ by verifying it holds for a ‘lucky’ guess of a=15. How else can the answer be…
Chris Wildhagen on The parallax effect
Sorry, het is inderdaad impliciet. Ik had even gemist dat de cirkels door elkaar middelpunt gaan.

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