Science A Scheme of Heaven is a deep investigation of astrology from a scientist’s perspective Ferdinando Buscema

books The Math Book: From Pythagoras to the 57th Dimension, 250 Milestones in the History of Mathematics Mark Frauenfelder

math Lockdown math: trigonometry fundamentals Mark Frauenfelder

toys Why this sliding tile puzzle arrangement is impossible Mark Frauenfelder

math Weird and wild warped-grid jigsaw puzzles inspired by Mobius, Haeckel, and Picasso David Pescovitz

coronavirus Explainer video – this is a good time to understand what exponential growth means Mark Frauenfelder

magic "Pick a number and I'll guess it": the math behind the magic David Pescovitz

math How many triangles do you see? David Pescovitz

math Augmented reality math is amazing and delightful Jason Weisberger

happy mutants Donald Knuth's Christmas pi surprise Cory Doctorow

happy mutants I made Wil Wheaton recite the digits of Pi for four minutes, then a fan set it to music Cory Doctorow

happy mutants Visualizing what happens when you shuffle a deck of cards Cory Doctorow

cars Video: the mathematics of where to park your car David Pescovitz

education If Bob Ross taught math David Pescovitz

happy mutants Make: a solar hot-dog oven (then learn the science) Cory Doctorow

happy mutants Zero Sum Game: action-packed sf thriller about a ninja hero whose superpower is her incredible math ability Cory Doctorow

art Hand-drawn fractals Rob Beschizza

math Dover edition of Edwin Abbott Abbott's Flatland (1884) Mark Frauenfelder

happy mutants Mechanical calculators have the BEST divide-by-zero errors Cory Doctorow