For a closer look at how FlexAll cushions a crash, launch the slideshow by clicking 'View Photos' at left
During a race on Virgina's Richmond International Raceway in 2003, Nascar driver Robby Gordon lost control of his car as he roared into the pit at 55mph. He smashed sideways into the concrete slab that separates the crew from the pit road and wrecked his car. Luckily, he didn't do the same to his body. Had he hit the divider head-on, the collision could have transferred a 100G-force jolt to his body, more than enough to kill him.
In an effort to reduce such a nasty risk, Nascar has turned to scientists at Battelle, an R&D company in Columbus, Ohio. Their solution: a new hyper-elastic material called FlexAll that deforms to absorb an incoming force and then bounces back to its original shape within minutes. After molding the FlexAll into honeycomb-like columns, the researchers repeatedly slammed racecars into it at speeds up to 100 mph. The plastic behaved identically crash after crash, absorbing 92 percent of an impact's energy each time. In road tests, the cushion reduced maximum G load on the driver by an impressive 60 percent.
Not just racers but everyday motorists stand to benefit too-Battelle has developed a highway version that can catch vehicles as big as a Hummer, traveling at speeds up to 60 mph. Both barrier systems await final approval from Nascar and the Federal Highway Administration and could be on a road or racetrack near you as soon as this summer.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.