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2013-07-05 11:18:24

As the Ashes series gets underway next week, a pair of brothers from Australia have been exploring the physics behind the spin of a cricket ball. While physicists are much more accustomed to measuring the spin of electrons, protons and neutrons, Garry and Ian Robinson, Honorary Visiting Fellows at the University of New South Wales and the University of Melbourne respectively, have presented equations that govern the trajectory of a spinning ball as it moves through the air in the presence...

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2005-09-10 09:25:00

Humans are heading back to the Moon. Tennis, anyone? NASA -- They call him the "Rocket Man." Tennis pro Andy Roddick holds the world's record for fast serves: 155 mph. By the time opponents realize where the ball is going, very often, it's already gone. Ace! Roddick's serve is much-feared around the US Open, which began this week in New York. His groundstrokes are like rockets, too. And, believe it or not, that can be a problem. Balls hit so hard want to go long, flying straight out the back...


Word of the Day
holluschickie
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'
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