At 09:03 AM 7/9/04 +0200, Eugen Leitl wrote:
>Looking for nitrogen doesn't cover all explosives, but most of them.
Yes. That Jamaican dude had TATP, triacetyl tri peroxide
if IIRC, in his shoe. But the dingbat tried to light a shoelace on
a non-smoking flight.
Peroxides need contain zero nitr
On Thu, 8 Jul 2004, Major Variola (ret) wrote:
> 1. I've seen adverts for linear sensors which image the bottoms
> of cars as they drive over. Sort of a scanner where the paper
> does the moving. Installed in the road.
Come to think of it, yes, the "road" within the tollbooth gate was a bit
ra
On Thu, Jul 08, 2004 at 06:52:22PM -0700, Major Variola (ret) wrote:
> Whatever, its still pornography if the resolution is high enough.
THz EM radiation only has a (relatively shallow) penetration depth for
clothes, plastic, wood, sand and soil.
It might do to detect a ceramics knife on a perso
On Thu, 8 Jul 2004, Major Variola (ret) wrote:
> 5. One could call terahertz "hard RF" in same way that hard x-rays
> bleed into soft gammas. But calling anything "hard" implies danger,
> and we mustn't scare the proles. Perhaps soft IR is better.
Technically, it's closer to soft IR. If I rem
At 01:08 PM 7/8/04 -0400, Sunder wrote:
>I recently visited the Canadian side of Niagra falls. On the return
entry
>to the US customs, etc. meant driving through penns that look like toll
>booths. But I noticed little sensors in pairs and large square sensors
as
>well.
1. I've seen adverts for
I recently visited the Canadian side of Niagra falls. On the return entry
to the US customs, etc. meant driving through penns that look like toll
booths. But I noticed little sensors in pairs and large square sensors as
well.
The entry gate was fairly large - I'd say about 2' deep by 2' wide
- Forwarded message from David Farber <[EMAIL PROTECTED]> -
From: David Farber <[EMAIL PROTECTED]>
Date: Thu, 8 Jul 2004 10:09:31 -0400
To: Ip <[EMAIL PROTECTED]>
Subject: [IP] Hi-tech rays to aid terror fight
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