How much faster could Usain Bolt have gone?

HOW quickly would Usain Bolt have run the 100 metres at the Beijing Olympics if he hadn't slowed in celebration before the finish line? A team of physicists have calculated an answer: the Jamaican gold medallist could have slashed his time from 9.69 seconds to 9.55 seconds.

In the final 20 metres of the race on 16 August, Bolt extended his arms and thumped his chest in celebration, slowing himself a little. But he still broke the world record he himself had set in May.

Hans Eriksen of the Institute of Theoretical Astrophysics at the University of Oslo, Norway, and his colleagues, who normally spend their time pondering deep mysteries of the cosmos, wondered whether a few simple calculations might reveal how fast Bolt could have run.

So, in their spare time, they used television footage to measure Bolt's positions, speeds and accelerations as well as those of the runner-up, Richard Thompson. Their measurements show both Bolt and Thompson decelerating in the final 2 seconds of the race, with a larger drop in speed for Bolt.

The team then calculated what Bolt's time would have been had he only slowed down as much as Thompson, arriving at an answer of 9.61 seconds. But this may be too conservative, given how much Bolt outperformed Thompson in the first 8 seconds of the race. So the team also tried assuming, somewhat arbitrarily, that Bolt would have decelerated less than Thompson, by 0.5 metres per second squared in the final 2 seconds, which they say would have given Bolt a time of 9.55 seconds.

It is difficult to get precise measurements from ordinary TV footage, which records at 30 frames per second or less, says Matthew Bundle of the University of Wyoming in Laramie, who studies human locomotion. More precise human motion studies rely on cameras operating at 125 to 250 frames per second, or on tracking motion with a series of light beams which get tripped as people go by, he says. However, he thinks the team's numbers are reasonable.

"We don't mean to say that this is the final and ultimate result," says Eriksen. "Instead, it's a fun application of simple physics, and we've done the best we can." The researchers have submitted their findings to the American Journal of Physics (www.arxiv.org/abs/0809.0209).

Report: Lance Armstrong to Return for 2009 Tour de France

AP Lance Armstrong

Lance Armstrong will end his retirement and hopes to compete in the 2009 Tour de France, according to a cycling journal report.

The 36-year-old seven-time Tour de France champion will compete in five road races with the Astana team in 2009, the cycling journal VeloNews reported on its Web site on Monday, citing anonymous sources.

Armstrong's manager Mark Higgins did not immediately respond to a voice mail left by The Associated Press.

The move would reunite Armstrong with Johan Bruyneel, now the team director for Astana.

VeloNews reported Armstrong also will compete in the Tour of California, Paris-Nice, the Tour de Georgia and the Dauphine-Libere.

The Astana team, however, was not allowed to compete in this year's Tour after Alexandre Vinokourov was kicked out of the 2007 Tour for testing positive and the team quit the race.

VeloNews, which said Vanity Fair will publish an extensive article detailing Armstrong's comeback, said

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Former UFC champ Tanner dead at 37

By Jeff Cain, Ken Pishna, and Tom Hamlin/

Former Ultimate Fighting Championship middleweight champion Evan Tanner was found dead near Palo Verde, Calif. on Monday. He was 37 years old. His management team at the Driving Force Sports management agency confirmed his death to MMAWeekly.com.

Tanner had trekked into the desert on a journey to “cleanse” himself, according to Douglas Vincitorio of Tanner’s management team. “He went out to the desert to do a ‘cleansing’ as he called it. Kind of like ‘Survivorman.’” These short trips were not new to Tanner, said Vincitorio. It is something that he has done numerous times over the years.

“What we were told is that (Sheriff’s officials who found Tanner) believe his motorcycle had run out of gas, so he went to walk out in like 115- to 118-degree heat,” Vincitorio said. “He was miles away from his camp. That’s where the helicopter found him. Right now, they just think that he succumbed to the heat.”

Lt. George Moreno of the Imperial County Sheriff’s Department has reported that Tanner set out treasure hunting on Wednesday, Sept. 3, asking friends to call for help if he didn’t return right away. Lt. Moreno says friends called the Sheriff’s Office on Friday, Sept. 5, and search and rescue teams looked for him throughout the weekend in temperatures up to 114 degrees.

The U.S. Marines used a helicopter to search by air Monday morning, finally spotting a body two miles from the campground where Tanner’s belongings were found earlier, according to Lt. Moreno. While a coroner has yet to confirm the body is Tanner’s, John Hayner, the owner at Driving Force Sports, says people close to to the fighter visually identified his body at the scene.

On Aug. 10, Tanner wrote a blog on Spike TV’s website, proclaiming his desire to start an adventure in the desert east of his new home in Oceanside, Calif. An avid outdoorsman and wandering spirit, he wanted to escape civilization for a while.

“I’m not just going out into the desert, I’m going out into the desert to hunt for lost treasure,” he wrote. “I’m going on a pilgrimage of sorts, a journey to solitude, to do some thinking, and to pay my respects to the great mysteries.”

On Aug. 16, Tanner wrote about collecting supplies for his journey, and wrote about the dangers he might face.

“I plan on going so deep into the desert, that any failure of my equipment, could cost me my life,” he said. “I’ve been doing a great deal of research and study. I want to know all I can about where I’m going, and I want to make sure I have the best equipment.”

Of course, this led followers of his blog to fear for his safety, as they often did when Tanner reported his frequent by-the-seat-of-his-pants adventures. In a blog dated Aug. 27, Tanner tried to calm his audience.

“This isn’t a version of ‘Into the Wild,’” he wrote. “I’m not going out into the desert with a pair of shorts and a bowie knife, to try to live off the land. I’m going fully geared up, and I’m planning on having some fun.”

But he also affirmed that things could go wrong if his equipment wasn’t up to snuff.

“I do plan on going back pretty far, so I did mention in one of my posts that I wanted to make sure to have good quality gear,” he said. “Any failure of gear out in the desert could cause a problem.”

On Sept. 2, Tanner wrote his final blog entry, documenting a training session at a facility in Oceanside.

The Amarillo, Texas native was a high school wrestling stand out who won the state championships his junior and senior years despite only getting into the sport as a sophomore. He entered mixed martial arts in 1997 encouraged by friends.

Tanner rose to the top of the mixed martial arts world by winning the UFC middleweight title over David Terrell at UFC 51: “Super Saturday” Feb. 5, 2005. He lost the title later in the year to Rich Franklin. Tanner, who had a career MMA record of 32-8 last competed in the UFC on June 21 losing to Kendall Grove by split decision.

“He will obviously be sorely missed,” said Vincitorio. Adding, “I think that Evan would want to be remembered as a very complex man with many layers, not just a fighter.”

Tanner was surely a unique personality. He’s eclectic spirit and competitive nature will be sorely missed in the MMA community.

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