Vi Hart
YouTube Star
Self-proclaimed recreational mathemusician whose math-related musical videos have earned her more than 1.3 million subscribers. Some of her most watched videos are part of a "Doodling in Math" series, and her video "Hexaflexagons" was her first to surpass 5 million views.
She attended Stony Brook University.
She co-authored research papers on computational geometry and the mathematics of paper folding. She worked in a research group called eleVR creating virtual reality videos.
Her father is mathematical sculptor George W. Hart.
She discussed the shooting of Christina Grimmie in one of 2016 videos.