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A Moment of Science

Posts tagged laser light

October 12, 2006

 

a group of people stand around strange green fog

How Do You Find an Alien?

Unless a flying saucer beams you up from your backyard, detecting alien life is tricky business.

September 27, 2003

 

Laser Gun

But the farther away the gun is, the wider the beam gets spread so that only a small fraction of the total light power can go into anyone’s eye.

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