Quote:
Originally Posted by Geo
Okay, let's say that detects earth magnetism. When it detects a coin from any place and on any terrain , it is enough for me |
Geo, problem is that such way it can detect only
known coins, but our goal is to detect
unknown treasure.
If your pistol return signal only in moving through a earth magnetic field, all unknown treasures remain unknown forever.
We need to do test properly with targets position unknown to pistol operator (and detecting angle cannot be 90° too).
90°detecting angle mean that treasure can be anywhere, but to establish that treasure can be anywhere you do not need PD, logical reasoning is enough.