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Thread: L@ser attacks on Aircraft
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Old 19th Aug 2008, 10:48
  #39 (permalink)  
Tarq57
 
Join Date: Dec 2005
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They're also fairly extensively used in the building industry, for lining up things that matter. Floor joists, when re-piling, for instance.
These ones are probably a bit more powerful than the ones used by lecturers, at a guess.
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