Well I certainly hope it doesn't grow one of those things in the foreground!
You're blessed. I really, really wish I could show my grandparents some of the coins I have now. They did a lot to encourage my interest in the...
Still hate the laser-pebbled finish, but I do like that design. A lot. I thought the Maya design was just okay, until I got one in my change at...
Most of platinum's superpowers are chemical in nature -- low bulk reactivity, fancy catalytic properties -- and the vacuum of space is pretty much...
One problem for space applications is that it is so dense, which translates to heavy, which translates to expensive. Launching a kilo of platinum...
From the linked story: They weren't posing as dealers or customers at that point. They were fleeing. Successfully, at least for now.
Oh, absolutely. It's a super-special metal, and even though there are entire chemistry careers devoted to "find something that works as well as...
;) Yeah, but those relative values are transient. Not too long ago the proportions would've been Gold $100, Platinum $200, Palladium $50....
Thick! The same diameter as an ASE? Do they specify whether it's a troy ounce (31.1g) or an avoirdupois ounce (28.3g)?
It doesn't occur naturally in Earth's crust as a free metal. Some do, like gold, silver, platinum, mercury, copper; some don't, like aluminum,...
That lower-left position is where I imagined seeing them, but I'm pretty sure I could make out any other arbitrary pair of letters if I...
I got a batch of dug Mercs a few years ago that included a 1926-S with XF details. I almost doubled my money from the batch with that one coin,...
Beat me to it. At the very least, get that coin into a protective flip, stat. Also mind the 1919-D; it's worn, but still a better date. This is...
Metal forced into the devices is work hardened as it flows. This makes it both physically harder and more resistant to chemical attack. At least,...
Yup, the rest of it is green goop somewhere.
Vinegar is most certainly an acid. Throw in hydrogen peroxide, and it's an oxidizing acidic environment. Even a copper cent would've been etched....
Bleach and acid is a popular combination for dissolving gold out of ores. (It gives off lots of chlorine gas, for the bad-idea cherry-on-top.)...
Not until you get up to MS. If you were going to be adding a MM, you'd want the O, which apparently goes for about 10X the P price.
I guess the operator wouldn't say "yeah, we have people with million-dollar tables all the time, and just getting your neighbor to keep an eye on...
See above. Bleach is basically alkaline salt water with extra chlorine dissolved in it. Salt is terrible for most metals; free chlorine is worse....
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