Re: discussion on the various possible theories that may be applicable to LrL's
RDT---
My theory is that if any precious metals are detectable at long range, then there are two types of sensors which might be used.
Either passive sensing, meaning just receiving some kind of input, and indicating it. Or active sensing, meaning that the locating device must emit something, which would cause the target to output something which the locator could then detect.
Passive sensing would require that the target already be emitting something on it's own (primary emission), or causing something to be emitted very nearby (secondary emission). This emission might be either
matter or
energy, or both. This emission would need to travel a long distance, either through the ground or in the air, in order to be sensed at a "Long Range." An exception to this traveling emission requirement, would be the camera theories.
If it's a matter of matter (heh heh), then it would need to be either airborne, or seep along the surface of the ground, in order to be detected by a
hand-held sensor. If airborne, detecting and direction indicating would be at the mercy of the wind and possibly other factors. If ground seepage, sensing it at range would depend on the surface ground conditions, and possibly other influences.
Both types of matter detecting would result in widely variable difficulties in determining direction to the target.
Energy emissions would seem to be much more efficient for locating targets.
If passive detection is possible, then it must be established first that
something is being emitted from, or very near, the target. The design of a locator would then depend on the type of emission. It would make no sense to try to do the reverse.
Not finding any natural emissions from the target would mean that the next step to investigate would be active detection. Try emitting various stuff at a target type of your choice, and see how it responds.
Welcome back.
