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!
15 November 2010
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