Vihart

Victoria Hart (born: ), better known online as Vi Hart, is an educational YouTube channel.  
==History==
The Vihart YouTube channel was created in 2009. Their most popular video is about hexaflexagons. Hart has a second channel called vihartvihart and they also worked at Khan Academy and eleVR.
Since 2015, Vi Hart has not uploaded frequently, but still uploads multiple videos a year. Since 2011, Vi Hart has had an ongoing tradition of uploading videos every Pi Day (March 14), most of which are rants about Pi Day or Pi itself.
==Personal Life==
Hart is the child of mathematical sculptor George W. Hart, and was educated at Stony Brook University. As well as producing mathematical videos, they have co-authored several research papers on computational geometry and the mathematics of paper folding.
Vi Hart has previously been supported by Khan Academy making videos for the educational site as their "Resident Mathemusician" and by a research group called eleVR creating virtual reality videos. They have also collaborated on educational computer games. Currently, they are funded by their Patreon, making "free media that lifts the human spirit."
Vi Hart stated in a video in 2015 titled "On Gender" that they don't have a gender identity, further stating that they don't use genderqueer terms like agender or bigender. They indicated in the video that they feel indifference to whatever pronouns they are referred to by.https://www.youtube.com/watch?v=hmKix-75dsg
==Videos==
===Pi Day specials===
#Pi Is (still) Wrong. (2011)
#Are Shakespeare's Plays Encoded within Pi? (2012 part 1)
#Two Non-Repeating Non-Normal Numbers (re: Pi and Shakespeare) (2012 part 2)
#Singing Pi-Gram (2013)
#Anti-Pi Rant, 3/14/14
#Anti-Pi Rant, 3/14/15
#This Pi Day is Round - Pi Day 3/14/16
#Pi Day 3/14/2017 - Venn Piagram
#Pi Rant 2018: Alternative Pi
#Pi Day 2019: 6 Digits of Pi!!! 🍰
#Pi Day Rant 2020
#Pi Day 3/14 1:59AM - Spring Ahead (2021)
#Pi Day 2022: Chromatic Challenge
#2023 is the 13th of these which is so many
#Behold the Folded Circle Snack Discovery (2024)
===Hexaflexagon Series===
#Hexaflexagons
#Hexaflexagons 2
#Hexaflexagon Safety Guide
#Flex Mex
#How to Make a Hexaflexagon: The Definitive Guide
#Hexaflexaflakes
==References==
Category:Art YouTubers
Category:Educational YouTubers
Category:Music YouTubers
Category:American YouTubers
Category:Users who joined in 2009
Category:LGBT YouTubers
Category:One million subscribers