Errr ... and to whom is this addressed ? How about an explanation of why
the sky is blue.
MowGreen [MVP 2003-2009]
> 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).