happy mutants Math and science cutting boards Cory Doctorow

happy mutants XKCD's brilliant explanation of Fermi Estimation Cory Doctorow

happy mutants Tessellated Escher cookies Cory Doctorow

happy mutants XKCD's "Frequency" – using blinking GIFs to visualize the relative frequency of the momentous and trivial Cory Doctorow

happy mutants Why the sum of all positive integers is -1/12 Cory Doctorow

happy mutants Sweet ukulele tribute to the largest Mersenne Prime Cory Doctorow

art Understanding the Sierpinsky triangle Rob Beschizza

happy mutants Stick-figure AES: crypto explanations for the rest of us Cory Doctorow

happy mutants The Boy Who Loved Math: The Improbable Life of Paul Erdős — great kids' book Cory Doctorow

happy mutants Solving Monopoly with Markov chains Cory Doctorow

Science Kickstarter from the Relatively Prime folks Cory Doctorow

happy mutants Crypto 101: free Stanford course online Cory Doctorow

finance Quant: leaving finance made me happy, you should try it Cory Doctorow

Science Baseball at relativistic speeds and other wild hypotheticals Cory Doctorow

Science How traffic jams are born Maggie Koerth

Science Rare Alan Turing papers bought by Bletchley Park Trust Cory Doctorow

Funny Random baffling math paper title generator Rob Beschizza