asymptosaur·Oct 19How I Accidentally Re-Invented 18th-Century Topology Rules in My BedroomPhoto by Drew Gilliam on UnsplashA response icon1A response icon1
InThe Quantastic JournalbyKanishk Raj Tanwar·Sep 23A Hidden Divisibility Pattern in Pythagorean TriplesIt turns out that for any integer right triangle with sides a, b, c, the product abc will be a multiple of 60. Honestly, at first glance I…
Chris Smith·Aug 21How to (Almost) Trisect an AngleIn 1837 Pierre Wantzel proved that no compass-and-straightedge construction can trisect every angle. The counterexample is 60°: trisecting…
George Dimitriadis·Aug 20Jimmy Discovers an Order the Class Cannot ObeyThe teacher tells all but one student to turn around. It sounds simple — until mathematics makes the order impossible.
sandoh·Jul 25Two Piles, One Golden RatioWhat backward induction reveals about Wythoff’s NimA response icon2A response icon2
InPrimes and Pandasbybarrysmyth·Jul 23More counterfeit Midy primesMidy’s test beyond halves: thirds, sixths, and the total forgers
InPrimes and Pandasbybarrysmyth·Jul 17In search of “Midy pseudoprimes”The counterfeit primes among the composite reciprocals that pass Midy’s 1836 testA response icon3A response icon3
Martin Dace·Jan 12A little geometry teaserWith great difficulty I managed to draw this in Microsoft Paint.A response icon1A response icon1
