element159 ✭✭✭

Scuba probably would be very cool for you. You can do both underwater photography, and get a detector to look for treasure. It also gives you an excuse to travel to exotic places. It is a physical th… (View Post)

I'd like that, actually. But I wish they made this palladium coin, and that future rhodium one, in smaller sizes. I really want one of these, but I can't bring myself to spend $1000. I would see this… (View Post)

My question: If bitcoin (or some other blockchain-based system) became the main source of currency in a large economy, say the USA converted nearly completely to this, then: How large does the blockc… (View Post)

The copper 1982 cents weigh 3.11 g, while the zinc ones weigh 2.5 g. So yours is copper. (View Post)

To nitpick, the toning is actually a layer of silver sulfide, with no oxygen in the mix. (It is still, to a chemist, 'oxidation' though.) The colors result, from light reflecting off of both the uppe… (View Post)