-How Fast Can a Human Go? (Time.com) "Usain Bolt may have just broken the human speed limit. Last week, he took two gold medals in the Olympic 100m, shattering his own world record with a time of 9.69 secs., and the 200m with a time of 19.3 secs., obliterating by two-hundredths of a second the long-standing world record Michael Johnson set at the Atlanta Games in 1996." 08-08 Bolt Lowers 100-Meter Mark to 9.58 (ESPN.com) "Usain Bolt crossed the finish line, saw his record-setting time on the clock and spread his arms as if he were soaring like a bird." "The Jamaican shattered the world record again Sunday, running 100 meters in 9.58 seconds at the world championships to turn his much-anticipated race against Tyson Gay into a one-man show." "That was 0.11 seconds faster than the mark he set last year at the Beijing Olympics -- the biggest improvement in the 100-meter record since electronic timing began in 1968." 08-09 Bolt, One of the Greatest (NBC Olympics) "Usain Bolt of Jamaica etched his name into history Wednesday as one of the Olympic greats, indeed one of the greatest athletes of all time." "And while no evidence of any sort has surfaced to suggest he's not, it's naïve not to wonder how Bolt is able to run so fast. Because no one in the history of human beings, from the first primitive soul desperately trying to outrun a saber-toothed tiger to the sophisticated races of our times, has ever run as fast as Usain Bolt has run at the 2008 Beijing Olympic Games." 08-08 Is Running Really Bad for the Knees? (Time.com) "The common wisdom is that regular running or vigorous sport-playing during youth subjects the joints to so much wear and tear that it increases a person's risk of developing osteoarthritis later in life. Studies have suggested that may be at least partly true: in one study of about 5,000 women published in 1999, researchers found that women who actively participated in heavy physical sports in their teenage years, or weight-bearing activities in middle age, had a higher than average risk of developing hip osteoarthritis by age 50." "But over the past few years an emerging body of research has begun to show the opposite, especially when it comes to running. Not only is there no connection between running and arthritis, the new studies say, but running — and perhaps regular, vigorous exercise generally — may even help protect people from joint problems later on." 12-09 Joyner-Kersee, Jackie (Sports Illustrated) Provides a biography of the greatest athletes of the 20th Century. "In ways that could be measured, Jackie Joyner-Kersee was one of the greatest Olympic athletes in history, and in ways that could not, she was a rare combination of courage and grace, of power and vulnerability." Includes a picture. 12-02 Strength or Endurance (National Geographic - Triveda) Provides results of a study to find if athletes are good at speed are poor at endurance and visa versa. 2-02 Zaharias, Babe Didrikson (Sports Illustrated) Provides a biography of the person recognized as the "Greatest Female Athlete of the First Half of the 20th Century." Includes a picture. 12-02

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