Felix Baumgartner prepares to jump
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The Three-Second Rush

Felix Baumgartner prepares to jump
Austrian BASE jumper Felix Baumgartner prepares to launch from one arm of the 98-foot-tall Christ the Redeemer statue in Rio de Janeiro in December 1999. The descent took just 2.5 seconds. (AP)
Clifford Ryder in Kuala Lumpur
Clifford Ryder leaps off Petronas Twin Tower during the 2001 Malaysia International Extreme Skydiving Championship in Kuala Lumpur. (AP)
Anne Helliwell jumps off an Arizona bridge
Anne Helliwell jumps off an Arizona bridge in 1992. She teaches BASE jumping and co-owns a company that manufactures gear for the sport. ()
Anne Helliwell
At her company, Basic Research, Helliwell holds a parachute that is specifically designed for BASE jumping. (GLENN KOENIG / LAT)
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