MadSci Network: Physics
Query:

Subject: See comments below.

Date: Wed Mar 11 18:28:59 1998
Posted by Erik Brobyn
Grade level: undergrad
School: City College (fall '98)
City: New York State/Province: NY
Country: USA
Area of science: Physics
ID: 889662539.Ph
Message:

What is the minimum intesity a laser beam 
must be in order to be seen by the naked eye 
in an average darkened room, and what 
would the units it would be measured in? 
(Watts?)



Re: See comments below.

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