Nickels, gold, pulltabs and Charon (Pluto's largest moon)

[budster]

After digging a few thousand pull tabs, I came across this bit of useless info!!!

In September 2016, astronomers announced that the reddish-brown cap of the north pole of Charon is composed of tholins, organic macromolecules that may be ingredients for the emergence of life, and produced from methane, nitrogen and related gases released from the atmosphere of Pluto and transferred over about 19,000 km (12,000 mi) distance to the orbiting moon.

If science and technology can do all this, why can't we come up with a method of differentiating between a nickel, gold, and a pull tab??

(Tongue in cheek)!!

 

[vlad]

......but are keeping it to themselves.
http://3e.org/feeds/ch/88/ch880315.gif

 

[Tom_in_CA]

There is a secret after-market device that tells the difference between aluminum and gold. Send me $10,000, and it's all yours. The unit plugs in between the coil to the box. Haha

But seriously now, there are people that've come on forums saying there's a difference in sound or tones . Or that a certain machine "when set up and used right", will give a difference that can be learned "to avoid 80% of aluminum" blah blah blah.

I try to call them out on this. When you challenge them to show you this learned skill by going to a junky park to be shown ........ then all you hear is the sound of crickets.

 

[vlad]

and molecular frequency discriminators (and do NOT give them away)-I believe two coat hangers are certainly as efficient and a darn sight cheaper,
and the same can be said for a willow rod [or other wood sticks.]
(you selling cheap Tom, I want $100,000 for my absolute gold finder-you have to be careful though....Russia, NWO)

https://s-media-cache-ak0.pinimg.com/originals/7a/10/bf/7a10bf574549240dc021921322d72a4e.jpg

 

[Dancer]

Some say their getting close, but still no cigar.

 

[still looking 52]

When they build metal detectors they were thinking of us getting plenty of exercise by doing all that digging so there is a lot more technology in your machine than you think.

 

[MarkCZ]

I've thought about the pull tab issue in this way many times. My thought was that the detector manufactures seem to have
focused on picking out the wanted items and leaving the pull tabs, so that's not worked out extremely well thus far. My thinking is
to go about the issue in a reverse method, poor a bunch testing into finding the tabs and leaving everything else, not that that
is what anybody wants as the end result, but rather to gain what it takes to target them could have a whole lot to do with learning
how to leave them (pass them over). There is a big difference in the density (weight) of the tabs vs the density and weight of the
target we're really looking for.

 

[Tom_in_CA]

.... There is a big difference in the density (weight) of the tabs vs the density and weight of the
target we're really looking for.

True. But unfortunately the science/electronics we have at our disposal measure only conductivity. Not density.

If you think it's easy, via the "big difference", to design a discriminator that can measure this through-the-ground, then .... by all means, invent and manufacture it. The world will beat a path to your door. You will be the next Bill Gates of md'ing fame and wealth.

 

[MarkCZ]

.... There is a big difference in the density (weight) of the tabs vs the density and weight of the
target we're really looking for.

True. But unfortunately the science/electronics we have at our disposal measure only conductivity. Not density.

If you think it's easy, via the "big difference", to design a discriminator that can measure this through-the-ground, then .... by all means, invent and manufacture it. The world will beat a path to your door. You will be the next Bill Gates of md'ing fame and wealth.

Well, Tom, I wish I had something like that ability, if I did I wouldn't be living in a 40 year old double wide mobile home (well its not mobile any longer) in the middle of what has been nick named "Ghetto-Links" So, I FOR sure was referring to electronic engineers out there
and not me LoL!
But, at the same time in theory and sometime in life there is things that works out better when approached with a reverse concept of the problem, but the little I know what I'm going reverse may have been how they started out

Mark