BASE-Jumper Uses Slingshot For Sketchy Stunt

Forget 0-60 in 3.5, these guys went 0-125 in... one second. What? Damn. Two base jumpers set up a human slingshot and had themselves launched 300 feet into the air, withstanding 6 g's of force (and somehow managing to not pass out in the process). For comparison, the average roller coaster ride has short bursts of 3-4 g. 

Mythbusters did a similar experiment in their 2005 "Border Slingshot" episode, but didn't actually put a human into the rig because of safety concerns. With the help of a bunch of engineers, these guys figured it out and got the ride of their lives!