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Latest Thorsten Markus Stories

2006-03-20 17:00:00

By Deborah Zabarenko WASHINGTON -- A radar-equipped NASA plane is flying low over the Arctic this week to measure the snow on top of sea ice, a finding with implications for polar bears and possibly humans, an ice scientist said on Monday. Polar bears raise their young in snow dens sitting atop sea ice so the depth of that snow is critical to their survival, said Thorsten Markus of NASA's Goddard Space Flight Center outside Washington. The temperature under a layer of snow rarely falls...


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.