NASCAR has loud fans and even louder engines, but can it beat the "Beast Quake?"

Football, NASCAR and their rowdy, roaring crowds faced off in a head-to-head battle this year to see which sport hits highest on the seismic charts, scientists reported Dec. 18 at the American Geophysical Union’s annual meeting in San Francisco.

Seattle Seahawks football fans have stomped their way to several “earthquakes,” shaking the football stadium so hard that nearby seismometers register tremors. On Jan. 8, 2011, a 67-yard touchdown run resulted in a fan frenzy as powerful as a magnitude-2 quake, now known as the “Beast Quake.” The rambunctious fans have also set a Guinness World Record for the loudest crowd roar.
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Lance Armstrong, the seven-time Tour de France winner, has been stripped of his victories by the US Anti-Doping Agency for using illicit performance-enhancing drugs. This is happening in almost every sport and in, Ian Steadman asks, "Why don’t we accept doping will always happen and legalize it?"

As training, coaching, nutrition and equipment have been improved, athletes will eventually reach a "wall," where further improvement isn’t possible, and then, Steadman says, "we face the question of how to keep sport interesting."
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