1515Art

18th century[edit]

Immediately after independence, the United States used a variety of units of measure, including Dutch units and English units.^[5] The 1789 Constitution grants Congress the authority to determine standards of measure, though it did not immediately use this authority to impose a uniform system. The United States was one of the first nations to adopt a decimal currency, under the Coinage Act of 1792.

In 1793, Thomas Jefferson requested artifacts from France that could be used to adopt the metric system in the United States, and Joseph Dombey was sent from France with a standard kilogram. Before reaching the United States, Dombey's ship was blown off course by a storm and captured by pirates, and he died in captivity on Montserrat.^[5]

19th century[edit]

In 1832, the customary system of units was formalized.^[6] In the early 19th century, the U.S. Coast and Geodetic Survey, the government's surveying and map-making agency, used a meter standard ("Committee Meter", French: Mètre des Archives) brought from Switzerland.^[7][8] Shortly after the American Civil War, the 39th United States Congress protected the use of the metric system in commerce with the Metric Act of 1866^[9] and supplied each state with a set of standard metric weights and measures. In 1875 the United States solidified its commitment to the development of the internationally recognized metric system by becoming one of the original seventeen signatory nations to the Metre Convention, also known as the Treaty of the Metre.^[10] The signing of this international agreement concluded five years of meetings in which the metric system was reformulated, refining the accuracy of its standards. The Metre Convention established the International Bureau of Weights and Measures (Bureau international des poids et mesures, BIPM) in Sèvres, France, to provide standards of measurement for worldwide use.

Under the Mendenhall Order of 1893, metric standards, developed through international cooperation under the auspices of BIPM, were officially adopted as the fundamental standards for length and mass in the United States, though some metric standards were used in practice before then. The definitions of United States customary units, such as the foot and pound, have been based on metric units since then.

The 1895 Constitution of Utah, in Article X, Section 11, originally mandated that: "The Metric System shall be taught in the public schools of the State." This section was repealed, effective July 1, 1987.^[11][12]

On July 4, 1876, Melvil Dewey (known for his Dewey Decimal Classification) incorporated the American Metric Bureau in Boston^[13] to sell rulers and other metric measuring tools. Dewey had hoped to make his fortune selling metric supplies.^[14]

15 hours ago, deathray said:

Dude!!!! Holy crap, what a story. I have not been on here in a looking time. I decide to check out the forum this morning before work...let's just say I didn't make it to work. Read through everything! Awesome! And yes, would love to work alongside them, kick some ass with John, haha. Thanks for posting these!

Hay death ray, aaaaa, bbb, aaaaaaaaa, bbbbbb, aaa, b long time no c…

2 hours ago, maxxkatt said:

opps, sorry man. Just a stereo type from the mob days. I apologize. I wish I lived out there in the western desert area so I could use my CTX3030 looking for nuggets.

Ha, no worries it was funny.

On 2/17/2022 at 5:39 PM, maxxkatt said:

One think I think we seem (or I) to forget that back then it was a pretty lawless time in those areas. When the word about gold gets out, honest miners are always followed by shopkeepers and robbers, saloons and saloon girls.

Is it any different today? Look at Las Vegas and you will find the same mix of people except the miners are replaced by gamblers. Prospecting for gold like metal detecting is gambling your time for a good payout. Times change and times stay the same.

 

 

Yep, nothing but robbers thieves and misfits here in Vegas but we have some fine saloon girls…

Ahhh, but think how much richer per ton your ground at 3 gal. Per bucket… 

7 hours ago, Gold Seeker said:

I wonder how big these buckets actually are, 5 gallons or smaller, I don't recall him saying how big they are?

I’d guess whatever size they were using for fire brigade buckets? Lots of times those buckets were used for anything the reason they have round bottoms on some of them. 
 

im going to say 3 gallons, seems like a manageable load two at a time? 

According to Wikipedia;

The 6000 is really hot on meteorites the 7000 too, but I find more with the 6000 so for covering a lot of ground the ergonomics and sensitivity of the 6000 is a good package.  Now, would a radio shack detector have hit on this one… probably.

15 hours ago, Steve Herschbach said:

Excellent find for sure - congratulations!! 👍🏼

Steve thanks and thank you for building a place where we can access the information we need from the experts like Lunk and yourself teaching us green horns what to do.

10 hours ago, GB_Amateur said:

And I bet the excitement didn't end there.  I'm curious to read how this compares to @Lunk's GB meteorite finds in terms of size.  I was thinking most meteorites found there are pretty small pieces, not 6/7 of a lb.  I assume a Radio Shack detector would have found this one, even if operated by a raw beginner.  Does that mean you were in an unsearched (for gold) area or is this another case of people ignoring really large signals, thinking it must be trash?

This is good size I think, but Lunk wins that contest His is bigger than mine,lol.

I’d guess the latter, my first thought was “where’s the can” and there wasn’t one, so I kept looking.

I was hunting up in the Sierra’s on a WSPA club claim, “Hot Patch” I’d just joined and was new at this hmmm don’t remember the year I had the 7000 I was preorder and it was newly released or within a year of that anyway, I was working my way down from the clearing everyone used as a parking spot parallel to the dual track I drove in on and inside the trees just a little bit I hit a tin can signal that I ignored, later regretting. In this area there was a small surface quartz breakout and a shallow prospect hole with some cans and timber debris left by the old timers that I recall, the entire area was heavily mined this spot nestled in the tree line was missed I think amongst the ground sluicing probably covered by overburden and later mostly exposed by years of run off, some nugget I read was found in the area and I always wondered if I should have at least looked for the can?

4 hours ago, GB_Amateur said:

Wow, that ain't no dink!  Fantastic find.  Do you know when the meteoroid expired there over Gold Basin (spreading its offspring)?  Four inches deep in the desert -- is the overburden primarily wind deposited or did you find this in a wash or ??  Regardless, that's quite a prize find.

I’ve read 10,000 to 15,000 years ago was the impact, this was in an area of low rolling hills centered in the strew field not in a wash. I’d have to guess how it was covered up probably a combination of impact and environmental mechanisms involved, it was exciting removing the first inch and finding it had not moved.

On 11/15/2021 at 9:12 PM, mn90403 said:

 

Clark

You know what a meteorite is now!  haha

Lol, as long as it’s one of these... trust me, I’m still learning and I’ve a large pile of rocks to prove it, ha ha.

On 11/21/2021 at 10:11 AM, Steve Herschbach said:

The GPX 6000 should be absolutely killer on that type of target, and you have confirmed it. Great finds!

Yep, put the 6000’s coil over one of these babies and your gonna hear it!

Thinking about your question a little more I wonder if the effect of the geo sense really only makes it appear to the user that the detector is not reacting to ground balancing because the geo sense software is compensating for the GB being off by adjusting gain and other settings maintaining relatively steady ground noise while in the background ground balancing is directly affecting performance?

Never thought about a nugget nft, lol… and why not. Now I just need a camera and somebody famous to promote the images, hmmm… Hay Steve there’s this thing; https://cryptoarticles.com/gold-nugget-nft/

Yes, I believe the geo sense is part of the magic optimizing the settings in all modes?

1. I ground balance religiously at start up and occasionally while detecting and don’t notice much if any difference, I kind of assume the auto ground balance is simply very fast and the 6000 acquires a ground balance immediately on start up or is something else going on?

3 hours ago, oneguy said:

you are not alone.  I've got exactly 100 nuggs with the 6 and still struggle with PPing.  From the looks of the scrape marks on coil from your scoop...it looks like you've figured out the coil edge is the sensitive area.  I do like Northeast does and once I find a target I back up, sneak up slowly on target, make mental note, do same from 90 degrees....and STILL HAVE TROUBLE....lol.  Time is valuable to me so when using the 6 if the ground isn't too steep or brushy I'll take along the Monster to speed up PPing.  Using the 6 I'll mark 6-8 targets with bright pink markers, set the 6 down and chase those targets down with the Monster.  Can't always do that but if you can it'll really free up some valuable time.... at least for me it does.

The stock 14” 7000 coil was the easiest to pinpoint, the nugget finder z search is not bad and as mentioned on small targets the edge sensitivity on the 6000 coils is not the best on small targets.

I do the same thing basically taking it a step farther sometimes if the signal is sounding really sweet or if I think it’s deeper. Coming off 90* swings I let the edge of the coil trace a line in the dirt just as the signal disappears, on shallow targets just two lines with the target in one of the corners and on deeper sounding signals I’ll go all the way around drawing a box in the dirt with the sweet spot in the center. After the target is out of the hole I use the Deus wiggle pulling the coil back slowly side to side until the signal disappears, the target is usually one or two passes away from my scoop. If the ground is to hard for the coil edge to make a mark I’ll use my boot or digging tool to draw a line instead, sometimes this saves time it just depends if I’m in the mood.

this is the link I used and fit is done by actually measuring your noggin with a piece of string or flexible sewing measuring tape. I used string and a carpenters tape and I measured just into the large size the fit was just right.
 

https://www.etsy.com/shop/InsideOutSafety?campaign_label=proteus_transaction_guest_buyer_notification_q4_treatment_v2&utm_source=transactional&utm_campaign=proteus_transaction_guest_buyer_notification_q4_treatment_v2_010170_688909163015_0_0&utm_medium=email&utm_content=&email_sent=1634900871&euid=VjMtCyQavk3gUohBTfL6xc67JXdm&eaid=390637348272&x_eaid=0faa6437aa

My Newcastle hat arrived and I couldn’t be happier, what a great fitting comfortable nice looking well made cover for me head and the 6000’s headphones fit perfectly…makes me look a little like a copper vase, or that could just be too many hours in the sun with my old ball cap, lol.

18 hours ago, sturt said:

Hi all. I use a GPZ 7000 at the moment. I will be looking at the new 6000 early in the new year. I spoke to a supplier today asking if the mains charger for the 7000 is compatible with battery for the 6000. WAS TOLD NO, as the 7000 mains power transformer supplied is 18 volt not 12 volt.

Looking at both systems firstly the 7000 series.   Tansformer   input 240 volt- 0.7 amp    output  output 18 volt- 1.67 amp

                                                                                  Goes to BC 10 cradle   input 11-30 volt  23w max   output  8.4 volt- 2 amp AND  5 volt- 0.67 amp

                                                                                  The battery states 7.2 volt  total capacity 72Wh

 

Now the GPX 6000                                                 Transformer  input 240 volt- .5 amp Max   output  12 volt- 10 amp

                                                                                 Trans plugs directly into battery   input 12 volt- 1.0 amp?  output 7.2 volt- 42Wh

What this tells me is Minelab have produced a new detector which uses the same voltage to run as the 7000 but the charging components are not compatible between the models. Should be.

The new 6000 uses a reduced capacity battery (weight issue?)which  does not last the full day, then you need a spare which you cant charge with mains power until the original is fully charged in about 5/6 hours. After a big day in the field I cant stay awake to swap the batteries so I need another transformer as well?

I am told by the Dealer though you could use the two car power leads as they are connected to a 12 volt car battery. Cheers sturt

Any 12v charger that is the same amperage or greater with the same connector and polarity will work just fine, I’m using and old Netgear router one got my second 6000 battery it works just like the Minelab charger. 

I want one!!!

A little pricy, but this would go pretty good with the 6000!!!

These are available gold backs or foil notes and fractional Valcombie bars, the gold notes are some type of polymer with actual measured amounts of gold deposited onto them and the silver and gold bars are made to break off smaller individually marked pieces.