pizza A brilliant visual illustration of Pi using pizzas and crust Gareth Branwyn

pi day Cool project: "I used pi to compose a song that lasts for 999,999 hours" Mark Frauenfelder

pi day Pi was almost 6.28… Mark Frauenfelder

pi day Sugar Pie Desanto sings "Rock Me Baby" Jason Weisberger

happy mutants As usual, Vi Hart's annual Pi Day video is the best way to ring in 3/14 Cory Doctorow

happy mutants Pie-Modding 101: turning store-bought desserts into amazing nerd-chow Cory Doctorow

math Where does your birthday land on pi? David Pescovitz

pi day You can calculate Pi by dropping toothpicks on a wood floor Mark Frauenfelder

Spider-Man Bolivian brothers let a black widow bite them all in hopes of getting superpowers Thom Dunn

music Watch Blondie's Debbie Harry on a pogo stick explaining the punk Pogo dance (1978) David Pescovitz

History Aviation museums' "most wanted list" of cool aerospace artifacts lost to history David Pescovitz

conservation Scientists clone endangered horse from genetic material frozen 40 years ago David Pescovitz

animals Watch Pigeon vs. Rat, a decidedly NYC brawl David Pescovitz

Space Trailer for new docuseries about the Space Shuttle Challenger disaster David Pescovitz

sports Fantastic pins remix pro sports logos with Black Lives Matter David Pescovitz

music "Good Music to Avert the Collapse of American Democracy" David Pescovitz

Science Did you leave your hamster DNA on a train? David Pescovitz

activism How to be a guerrilla theatre activist David Pescovitz

aviation Pilots over LAX report "a guy in a jetpack" flying beside them David Pescovitz