15 November 2010

Green Laser - something to know

Many of us use the green laser as a very useful tool in star parties and in teaching newbies to learn the constellations. But there are certain things one should know about the dangers involved with this useful "toy". Here is an informative link:

http://www.skyandtelescope.com/community/skyblog/observingblog/99956999.html

Let us take care to use this useful instrument safely!

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