[quote=Esteban;87023]In a French book of Physics (translate to Spanish) by J. Langlebert, doctor in Medicine and professor of Nature Sciences and Physics, of 1911, you can found the action of the Earth in solenoids, page 394. This is, when you connect to the batteries a solenoid wich pivots in a receptacle with mercury (for to stablish well contact), the extremes "watch" one to North and other to South.
The pole wich "watch" to the North is called austral and the pole wich "watch" to the South is called boreal.
Ok, this acts as a compass.
Well, in the same way you can design a system wich can "watch" to desirable target...
WHAT BULLS**T!!
Dude, the earth is quite a bit larger then any target you might find, and it may come as ashock to you but it has a thing called a M A G N T I C F I E L D this is due to the fact that it's core is a huge lump of molten IRON.
Now IF you built the machine you are proposing, then consider that the magnetic field of the target you are after, and YES a gold object WILL distort the magnetic field of the earth in it's immediate vacinity, but NOT in any amount that could possible be measured from 105 metres away, in fact, you are NOW into the realms of conventional metal detectors (something WE know a LOT about) and you, not so much so obviously. So your (again made up speudo explanation) about voltage concentration, whatever that is, is more manure than I've seen in a long time.
SPEAK FACTS, not this continous stream of childish drivel we all see.
I challenge YOU and all other LRL'ers MAKE something that works, then post the designs on here so we can ALL make one and agree (or otherwise) with you, but all I see so far in response to my last request for hard scietific theory are the sort of rambling I would expect from a four year old with a VERY active imagination. I might suggest you go back to school where thay can teach you a few REAL facts about physics and electromagnetism.
FACTS, FACT, DESIGNS and PROOF. You have non of ANY of these that I have seen so far. Sorry, but SHOW ME THE MONEY then we'll take you seriously, but FFS STOP with the fake science!!
