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Laser
Sept 5, 2006 12:12:26 GMT 10
Post by toweringniceguy on Sept 5, 2006 12:12:26 GMT 10
After decades of expensive, well-publicized failures, laser weapons may finally be on the horizon
Jumping to Light speed
Lasers all work in pretty much the same way: Excite certain kinds of atoms, and light particles—photons—radiate out. Reflect that light back into the excited atoms, and more photons appear. But unlike with a lightbulb, which glows in every direction, this second batch of photons travels only in one direction and in lockstep with the first. And instead of shining in every part of the spectrum, laser light is all the same wavelength, which depends on the “gain medium”—the type of atoms—you use to generate the beam. Shine enough of the focused light, and things start to burn.
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Laser
Sept 7, 2006 4:45:49 GMT 10
Post by zee on Sept 7, 2006 4:45:49 GMT 10
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Laser
Sept 15, 2006 3:15:55 GMT 10
Post by nida on Sept 15, 2006 3:15:55 GMT 10
nyc
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