Vi Hart on shootings, stalkings, and Internetting While Female

Like many youtubers, the incomparable, fast-talking, sharpie-doodling mathematician Vi Hart (previously) was stunned by the Orlando shooting of Christina Grimmie, a Youtube singing star who broke out into the mainstream, and who was murdered by a man who attended her public appearance. Read the rest

Songs for the carpool lane

Speedtalking math-vlogger Vi Hart isn't just a math wizard: she's also a brilliant songstress. Read the rest

Make a green bean matherole! (And other math-based Thanksgiving treats)

Vi Hart is Khan Academy's professional mathemusician. (Yeah, I KNOW, right?) And, this year, she's making the most delightfully nerdy Thanksgiving dinner ever.

It begins with green bean matherole, topped with fried Borromean onion rings. But, besides the fact that it's finished with crispy, delicious hyperbolic geometry, what makes the matherole a matherole?

Vectors. Like the rings, vectors are part of geometry. They've got a magnitude (think: size of the green bean) and they've got a direction (think: which way the green bean is pointing). Most importantly, a single vector can be part of a field of vectors. And that, my friends, is an excellent starting point for a 9 x 13 pan full of beans. Read the rest