Since the quarter has a given weight besides tolerances, of 5.67 grams, and the density of Cu is 8.96 g/cm3 and is 91.67% of total, and nickle...
I always keep a quarter since the local Aldi's market uses one to unlock a cart from the row. So when you return the cart back, it releases your...
Face it, the future is " digital plastic ". Maybe sad , but true unless someone breaks bitcoin's scheme badly and threatening so it can be cracked...
Bman, you may know , but if you click on a person's user ID, you can see when they joined and the threads in which they posted or started.Then you...
Folks, keep the thread close to the subject. This one was about Mint-ASEs, not tokens or monetary coins. This thread will not evolve into another...
Maybe so the state could take over producing gold and silver mines as 'currency control'. :playful: If you drive through that state with...
The alloy is 88.5% Copper - 6% Zinc - 3.5% Manganese - 2% Nickel. No gold .
If you go to this page you can click on the reverse and enlarge it and you will see that the apparent Doubled columns are part of the design to...
Magician coins are uncommon ( unless you are a magician) but easily made and available. See this ad by a professional magician....
Peter, before you put up your stuff alone, consider other coins or books,etc. donations from members with proceeds to go to the site. Chris's...
As mentioned, it seems a business strike ( Philadelphia) and not a no-S San Francisco Proof error.
Most people concerned about paper effect use the double flip with the fold, so the paper is in one side and the coin in the other.
Here is an old thread about it. You can find them on ebay also....
It is very hard for anyone to tell you if you have a high value coin with out seeing it. There are so many manufactured over strikes, doubled...
If the freezing and unfreezing is suppose to loosen and crud, you need to get the crud off right then, because as the separation line between the...
Hey what we need is a "Garage Sale" FORUM!!:woot::woot::eek: Just kidding Doug !!!:D
Any time you superheat a pure liquid ( not a mixture) and there are no nucleation points ( such as would be ions in tap or natural water), any...
The calibration weights are very necessary to maintain accuracy. If you live near a college or university with a chem department, ask if they will...
The chemicals found in the tap water, unless you are sipping fresh swamp water are in solution and stay there. You can test this by putting a...
The main 2 questions are max. weight in grams and resolution ( accuracy) such as +/- .1 gram. ,.01gram, .001 gram, .0001 gram. As each goes up,...
Separate names with a comma.
