An astrophysicist estimated that Santa would need to travel at roughly Mach 3,000 to visit an estimated 91.8 million children ...
MattDoesFitness on MSN
British bodybuilder tries US Air Force fitness test - instantly regrets it
We put ourselves through the US Air Force physical fitness test to see if we could meet the standards under pressure. Starting with one-minute push-ups and sit-ups, we quickly learned that pacing and ...
Think the fitness tests you did in gym class were tough? The U.S. military has been putting its service members through the ...
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