Do you like laser beam?

[seohelp2012]

The beam from green ones can quite often be seen with the naked eye, which would make targeting easier.

"Green laser pointers can also be used for amateur astronomy. On a moonless night, a green laser pointer beam can often be clearly seen, allowing someone to accurately point out individual stars to others nearby. "
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Great men are rarely isolated mountain peaks; they are the summits of ranges.