Tuesday, January 21, 2014

Ball Lightning; Very, Very Frightening


Farcical to the uninitiated and heinously rare to the physicist; scientists in China have observed a rare weather spectacle known as ball lightning in nature for the first time. A research team in the Quinhai region was monitoring a thunderstorm in 2012 with video camera and a spectrometer when they unwittingly recorded the St. Elmo’s Fire (ball lightning’s colloquialism). In layman’s terms, ball lightning is a large flash of light that looks circular from afar. It appears during a super cell and can sometimes emanate from objects like lightning rods or ship masts caught in the chaos. In a report published in The Journal of Physical Chemistry, researchers at the U.S. Air Force Academy in Colorado last  year figured out how to reproduce ball lightning in the lab. They used electrodes partially submerged in electrolyte solution to create the high-power electric sparks. The result was bright white plasmoid balls.

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