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On Pyramid of Tetrahedrons in the Moon is a Harsh Mistress

I reached chapter 5 and Heinlein encouraged us to think about the 'one hundred twenty-one tetrahedrons, a five-level open pyramid'. I got thrown off at the open pyramid part, because open is a topological term... So let's find out what Heinlein meant. Each cell has three members. Each member produces

Tuji Sep 4, 2018 • 1 min read
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