Quantcast

Latest Dan Dzurisin Stories

c3d6d443bdfe45504f24bede66ecd6db1
2006-05-12 19:30:54

SEATTLE -- The sheer rock fin emerging in Mount St. Helens' crater lost about a third of its northern face recently, but because lava keeps pushing to the surface, the height remained the same Thursday - around 330 feet. A burst of seismic activity at the mountain Sunday night likely corresponded to the collapse. "Certainly a big piece fell off - something like 65,000 cubic yards," said geologist Dan Dzurisin at the Cascades Volcano Observatory in Vancouver, Wash., about 50 miles from the...


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.