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Business News Archive - March 21, 2006

WASHINGTON (Reuters) - Use of attention deficit drugs rose nearly 19 percent among ages 20 to 44 in 2005 while falling 5 percent in children under 10, according to statistics released on Tuesday amid a U.S. review of the drugs' safety. An estimated 1.7 million U.S.

Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.