Vi Hart
American recreational mathematician · United States · On the map · Academics · Born 1988 · age 38
Victoria "Vi" Hart is an American mathematician and former YouTuber. They describe themself as a "recreational mathemusician" and are well known for creating mathematical videos on YouTube and popularizing mathematics.
Vi Hart is read about 70 times a day, in 8 languages.
A typical day, 30 days to 22 June 2026
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Hart founded the virtual reality research group eleVR and has co-authored several research papers on computational geometry and the mathematics of paper folding.