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swapna
October 13th 08, 08:21 AM
A laser is a device that emits light (electromagnetic radiation)
through a process called stimulated emission. The term "laser" is an
acronym for Light Amplification by Stimulated Emission of
Radiation.Laser light is usually spatially coherent, which means that
the light either is emitted in a narrow, low-divergence beam, or can
be converted into one with the help of optical components such as
lenses. Typically, lasers are thought of as emitting light with a
narrow wavelength spectrum ("monochromatic" light).



http://electronicstopics.blogspot.com/2008/10/laser.html

Darkwing
October 13th 08, 07:18 PM
"swapna" > wrote in message
...
>A laser is a device that emits light (electromagnetic radiation)
> through a process called stimulated emission. The term "laser" is an
> acronym for Light Amplification by Stimulated Emission of
> Radiation.Laser light is usually spatially coherent, which means that
> the light either is emitted in a narrow, low-divergence beam, or can
> be converted into one with the help of optical components such as
> lenses. Typically, lasers are thought of as emitting light with a
> narrow wavelength spectrum ("monochromatic" light).
>
>
>
> http://electronicstopics.blogspot.com/2008/10/laser.html

WGAS?

October 13th 08, 08:05 PM
swapna > wrote:
> A laser is a device that emits light (electromagnetic radiation)

Google natural laser, 39,500,000 hits.

Is the laser action in the atmospheres of Venus and Mars a "device"?

Babbling idiot is wrong right out of the starting gate.


--
Jim Pennino

Remove .spam.sux to reply.

Leif Frandsen
October 13th 08, 08:20 PM
http://imageload.dk/files/cc8fc7b1c9b3fd8276dd5b720a351c1d.gif

Leif Frandsen
October 13th 08, 08:31 PM
http://imageload.dk/files/c6607966d87f51625e3d3823bab7eb90.gif

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