Re: Tera Herts raygun?
- From: "Randy Poe" <poespam-trap@xxxxxxxxx>
- Date: 25 Jan 2007 08:11:51 -0800
On Jan 25, 5:21 am, Jan Panteltje <pNaonStpealm...@xxxxxxxxx> wrote:
http://edition.cnn.com/2007/TECH/01/24/ray.gun.ap/index.html
'millimeter' waves, OK, maybe a couple of hundred GHz.
BTW, the spelling is "Terahertz".
No mentioning of fried walkmans and cellphones...
LOL
Millimeter waves have been around a long time. It's a solution
in search of a problem. One significant issue is that they don't
propagate very far. Atmospheric attenuation (especially when
there is water in the air) gets worse as you go up in frequency.
There's a window of transparency around 96 GHz. So far as I
know, that's the only mm-wave frequency that has any practical
application (for some close-in radar applications).
It's also hard to put much power out at these frequencies, though
that is a technology that is always improving.
- Randy
.
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- Tera Herts raygun?
- From: Jan Panteltje
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