NEW extreme sports channels with special messages for Vsauce:
RIDEchannel (Tony Hawk): http://bit.ly/xxao37
AlliSports: http://bit.ly/wwdKqB
NetworkA: http://bit.ly/A8vwRc
ALL MUSIC COURTESY http://www.soundcloud.com/JakeChudnow
History of the Motorcycle: http://en.wikipedia.org/wiki/Motorcycle
First FMX back flip: http://www.youtube.com/watch?v=BUAt5WwtaX0
First motocross TRIPLE back flip: http://www.youtube.com/watch?v=4eTMDkbS0fc
Back flips limit calculation: http://extremesportsphysics.blogspot.com/2007/07/fmx-backflips-limit-14.html
Swing Physics: http://www.exploratorium.edu/skateboarding/trick04.html
Center of mass Magic: http://www.youtube.com/watch?v=PgANeYMT8X8
Outrun avalanche: http://extremesportsphysics.blogspot.com/2007/10/popscis-extreme-sports-error.html
snowboard with avalanche video: http://www.youtube.com/watch?v=0P_kza7pJFM
gees felt by snowboarder: http://extremesportsphysics.blogspot.com/2007/10/anatomy-of-monster-aerial.html
shuttle launch: http://www.youtube.com/watch?v=4FROxZ5i67k
400,000g bacteria: http://news.nationalgeographic.com/news/2011/04/110425-gravity-extreme-bacteria-e-coli-alien-life-space-science/
gees snowboard pic: http://www.flickr.com/photos/glennybig/470051575/sizes/z/in/photostream/
Euthanasia Coaster: http://www.julijonasurbonas.lt/p/euthanasia-coaster/
Kittenger SPACE JUMP: http://www.youtube.com/watch?v=90Y0_iJrRl0
REDBULL Space Jump: http://www.redbullstratos.com/