How does blood doping boost performance in events like the Tour de France? Do anabolic steroids help the world's fastest man run faster? In his book, Run, Swim, Throw, Cheat , Chris Cooper discusses how these banned drugs work, or don't — and how they are detected.
The world record for high jump — the event in which a person hurdles himself over a horizontal bar — is just over 8 feet. That's like leaping over a stop sign, and clearing it by a foot. Jesus Dapena, of Indiana University, has studied the high jump for 30 years, filming athletes to understand exactly how they produce the force required to clear the bar.
ERIC MCCORMACK: (As Doctor Daniel Pierce) In this class, we're interested in what goes on in the brain. And if we were to put someone in an FMRI machine and watch what happens when they make up a lie, we'd see their dorsolateral prefrontal cortex light up like a Christmas tree...
MCCORMACK: (As Doctor Daniel Pierce) ...because we use our brains when we lie. We use our brains when we're being lied to. But can the brain ever lie to itself?
Originally published on Fri July 20, 2012 12:55 pm
Antarctica has 90 percent of the world's ice--and it's melting. Ice sheet guru Bob Bindschadler talks about climate change in Antarctica, and rising sea levels across the globe. Plus, biologist Diana Wall talks about hidden life in the barren Dry Valleys, and microbe hunter John Priscu talks about "bugs in the ice."
Florida's Aquarius Reef Base is the only working undersea lab left today. But now that federal funds have dried up, it may be forced to surface. Oceanographer Sylvia Earle joins Science Friday from inside Aquarius, 60 feet underwater, to talk about sponges, corals and other life she's observed on the reef.