Monday, December 8, 2014

Northern lights

Hi all,
First up, I just wanted to apologize for my six month hiatus. I've been blogging about LEGO for nine years now, and from time to time I've just gotten a bit run down and distracted from my family of blogs. However, in the meantime, I'm constantly going through Flickr, Brickshelf, and other sites, and probably every day I bookmark a few more things that I keep meaning to post. I've gotten a couple of nice notes asking where I've been, and I guess it's time to come back. Also, during the year I save up LEGO books to review as people are getting ready for Christmas, and want to get those posted. And so, back to blogging. Hopefully I won't have too many interruptions in the near future. I've certainly got a backlog of great creations to feature.

The northern lights, or Aurora borealis, are depicted in this mosaic by Dave Ware. This light show actually starts at the sun. Extremely high temperature, and therefore high energy, collisions between particles result in naked protons and electrons being flung from the sun's surface. When this 'solar wind' hits the earth, the earth's magnetic field either deflects the particles or funnels them down towards the earth's surface at the north and south poles. As these high energy particles encounter the gases of our atmosphere, energy is given off in the form of light.

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