. Anyone want to go with me ? Science Pub at Salt hill, Lebanon Thursday, March 27, 2014 The Aurora – Wonder of the Night Sky! The colorful dancing lights in night skies known as the Aurora have long fascinated humankind, inspiring ancient legends and speculation by philosophers. Aurora was the Roman goddess of dawn, and Aurora Borealis - the lights in the northern hemisphere – is Latin for “dawn of the north” while Aurora Australis – lights in the southern hemisphere - means “dawn of the south.” Appearing in myriad forms, from colored arcs and streamers to clouds and curtains of light, the night display we New Englanders know as the Northern Lights is caused by the collisions of charged particles travelling on solar winds that become trapped in magnetic fields around the Earth’s poles. What causes the variation in the bright colors pulsing across the night sky? What can the Aurora tell us about geomagnetic storms and what effect do those storms have on our satellite systems, telecommunications and power grids? When and where are we most likely to see the Northern Lights? This is your turn to ask! Discussion Leaders: Kristina Lynch, Professor of Physics and Astronomy, Dartmouth Philip Fernandes, PhD Candidate, Physics and Astronomy, Dartmouth Jim Labelle, Professor of Physics and Astronomy, Dartmouth
Posted on: Sun, 09 Mar 2014 15:54:00 +0000
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