Dave Richeson
divbyzero
This is a great paragraph in this article! https://twitter.com/AndresECaicedo1/status/1309590833214009344 Just to circle back to this quote, what I love about it is that perfectly encapsulates what I love about math
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Here's an amateurish claymation video I made in 2008 showing a topological magic trick. It shows that you can go from one of these configurations to the other without breaking
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The harmonic series Σ(1/n) diverges. What if you remove all terms with the digit 9 in the denominator? Does it still diverge? (Spoiler: the next tweet contains the answer.) [1/4]
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