I absolutely would not trust a Sigma to distinguish between a 90% silver coin and a clad coin plated with .999 silver. Given the skin effect, and...
Yeah, I'm tall enough to reach the top, but I get self-conscious enough just cruising by and gawking at the reject bin. Plus, it ain't getting any...
Fine, I'll go dig around for the thread as I should've done in the first place. :rolleyes: :shame:
Yeah, the whole "If I buy this it's going to sit in the shop for a long time" trash-talk would be kind of embarrassing for them, I'd think. :)
Can you elaborate on this? Because if it looks silver (solid silver edge, looks light rather than dark when viewed through paper), but weighs 5.7...
Bingo. The resistance of a silver coin will be somewhere in the micro-ohm range. That means that if you push a full amp through the coin, you'll...
"Unc Details, ultrasound transducer gel residue". :rolleyes:
Have you ever tried this? You'll find that if you "just touch" the coin with the probes, you'll be touching surface contaminants (dirt, oil,...
I just meant that poking the coin with metal probes is likely to scratch it. You generally must push quite hard to get good electrical contact for...
It's true that silver has lower resistance, but you won't have any luck trying to measure it with a regular meter. All you'll really measure is...
Welcome to CoinTalk! See the "S" on the coin's reverse, just above TEN and under the eagle's claw? That's the mint mark, indicating the coin was...
Imagine coin collectors getting involved in lengthy arguments about trivial details. Thanks for the reality check. I should go see if there's any...
It seems farfetched to me that someone picking up a hot flan with pincer tongs would ever get anywhere close to the center. It also seems...
I like seeing the German renderings of oh-so-familiar English ("white-headed sea-eagle"?). I'd consider looking for one myself, except that I'm...
I'd write a correction for this, but I just got my dessert, and I don't want the ice cream to be liquidated.
Could you actually make out those features from those auction photos?
Yep. They did some remarkably stupid stuff, but it could have been worse. At least now they're out of our hair until August (reconvening so the...
Now you've gone and done it. ;) (Kurt will be by shortly to remind us that "Gresham's Law" is a silly special case of a general and trivially...
Cry me a river. Ours declared a 5:30-7:30 dinner break, then went back into session. I wish I could find a link to the direct quote, but if I...
Just had to sit on that one until the editing window had closed, didn't you? ;)
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