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Old Sat Mar 04, 2006, 11:33pm
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Join Date: Jun 2005
Location: USA
Posts: 1,577
About your friend?

Does s/he like stockcar racing? Tell 'em that I once saw a stockcar RISE 10-12 feet through the air and tumble over and over at speeds of 180 mph. There was such a strong upward lift on the bottom of all cars that race officials had to adopt SAFETY requirements MANY years ago. Wings were required to provide a downward force to keep the car from RISING off the ground. The same thing is true for powerboats traveling at speeds of 100 mph. Now I want to know if a 5 ounce baseball with SEAMS passing through the heavy warm AIR I breath at sea-level in June at speeds of 100 mph also experiences a small RISE due to a well-known force called LIFT.
 

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