>> Who knows about this UWB technology presented below? Does it work?
>
>Yes. Google for 'terahertz imaging'.

Yeah, these guys were at the other end of my building when they were doing
it. Now been spun off into a commercial unit.
http://www.startiger.org/thz.htm

was fascinating watching what they did. It was a first experiment in getting
a bunch of young clued up graduates together and going at a project hammer
and tongs for six months to see what they could come up with.

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