Quantcast

General News Archive - January 26, 2009

32e696b7be863cd202e46652ba03589c1

Researchers at Columbia University's Mailman School of Public Health have released findings identifying factors that affected evacuation from the World Trade Center (WTC) Towers on September 11.

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.