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Latest Sodium layer Stories

Perseid Meteor Shower Will Also Provide Celestial Pollution
2013-08-10 06:31:00

[ Watch the Video: Laser Lights Criss Cross Hawaiian Skies ] April Flowers for redOrbit.com - Your Universe Online The annual Perseid Meteor Shower will peak this weekend. As redOrbit’s Lawrence Leblonde reported, scientists are predicting that due to a lack of strong moonlight, this could be one of the most impressive shows in years. But that isn’t the reason scientists are so happy about the shower. In addition to a fantastic light show every summer, the Perseid shower provides...

83e63435ae66cb0dcc47b9d389ad8ba11
2011-02-15 07:55:00

Physicists propose beaming laser at atmospheric sodium to measure global magnetic field Mapping the Earth's magnetic field "“ to find oil, track storms or probe the planet's interior "“ typically requires expensive satellites. University of California, Berkeley, physicists have now come up with a much cheaper way to measure the Earth's magnetic field using only a ground-based laser. The method involves exciting sodium atoms in a layer 90 kilometers above the surface and measuring...


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.