[IP] Hi-tech rays to aid terror fight

[Eugen Leitl]

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 person through clothes, or for
(say, skin cancer) diagnostics, but it will only pick up an explosive spectrum
if
it's wrapped in paper/cardboard/plastic foil, or not wrapped at all.

Looking for nitrogen doesn't cover all explosives, but most of them.

--
Eugen* Leitl <a href="http://leitl.org">leitl</a>
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