Posted on 03/22/2018 6:52:26 AM PDT by BenLurkin
The weapon is composed of two parts: first, a femtosecond laser, which shoots a burst of focused light for 10−15 seconds, just long enough to rip the electrons from air molecules and create a ball of plasma. (Sometimes called the fourth state of matter, plasma is a field of electrified gas, highly responsive to electromagnetic effects.) The scientists then hit that plasma field with a second nanolaser, tuned to an extremely narrow range of wavelengths. They use that to manipulate the plasma field in a way that can produce light and noise. Get the interaction precise enough and you get something that sounds like a haunted walkie-talkie.
...
The weapon’s most interesting aspect may be the way it creates noise: at a specific and distant point in space, rather than blasting it out of a nearby speaker. That means that soldiers between the weapon and the target are unaffected.
How far away can that point be? “Range is a function of the optics. The bigger the mirrors, the farther the range,” Law said. A five-inch mirror creates the effect about one kilometer away; an 8-inch mirror, about five kilometers, he said. “They’ve created plasmas at 20 or 30 kilometers,” he said. “This is the first non-lethal weapon that could go out tens of kilometers.” The Kerr effect, a term that refers to minute changes in the refractive index as a result of electromagnetic field changes, makes it actually easier to create the effect at a distance.
“One of the things about the ultra short pulse, it wants to form at longer ranges. It’s harder to form at shorter ranges,” said Law.
(Excerpt) Read more at defenseone.com ...
“Blow yourself up.” “Detonate now.”
I remember back in the 70’s when I sold hi-fi there were articles about attempting to produce sound “in thin air” without a physical driver.
I have assumed, since then, that the nut will eventually be cracked. Not that this is it, but it’s a start.
A highly-sophisticated ventriloquist.
I hear voices in my head. They’re telling me to do things. Bad things. I’m scared.
Bad things?
You mean like...vote for a Democrat who pretends to be pro-life?
Lol
That technology has been around for awhile..
‘Guinea Pigs: Technology of Control’ by John Hall.
Create a miles wide image and voice in the night skies over certain middle east countries of a giant Allah telling all muslims to change their ways, leave the Christian’s alone, leave their countries and stop blowing up things.
Like a Wizard of Oz thing, i seem to recall a techno thriller author some years ago wrote about a secret military group that did just that.
A game of Allah says.
Decades ago, an audiophile friend of mine claimed he knew someone who created a point source speaker using a pulsed CO2 laser focused down to create plasma from the air.
“Kim Jong Un is fat.”
On repeat at Kim Jong Un’s palace. There would be bodies everywhere.
What do they call it? The Voice of Allah?
Chuck Campbell has had a few decades to improve his act.
Bob probably fell apart due to wood rot.
I want the sharks too.
“A highly-sophisticated ventriloquist.”
Can they make it drink a glass of water at the same time?
Wouldn’t bullhorns be cheaper?
“This is Allah, stop fighting the Americans, start making peace with everyone, and oh, stop f*cking goats...”
was something similar used on the diplomats in Cuba, perhaps?
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