Fri, 18 Nov 1994, Tim May writes:
* A tiny thread cannot be readily detected by "airport scanners," nor by even longer-distance scanners, unless the gain on the detector is turned up so high that many other things trigger the detector.
If the threads are mostly plastic, with discontiguous metallic writing on them, then the detection problem is even harder.
This is just a quick thought...does anyone know what kind of metallic ink is used? To add to the conspiracy theory, say the metallic ink is radioactive with a higher radiation count for higher dollar amounts--would it be implausible then to have some sort of radiation counter to gauge a person's total 'radiation count,' and thereby approximate how much currency they are carrying out of the country?
Wouldn't work. Radiation is useless for something like this - how to tell the difference between X $20 bills, and Y $100 bills? The roentgen/hour levels would be close enough to make knowing which is which virtually impossible. Radiation is mostly good for yes/no type stuff, unless you're dusting things with particular combinations of very specific isotopes and sampling for them - in which case you've got a completely different set of problems.
I wouldn't take the above seriously though....
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