Wait, what is 2.4K gold suppose to mean? I did not think that was a measurement of gold purity. It certainly can’t mean 10000% pure gold.
“N karat” means N/24 parts gold. So 24 karat is 100% gold (within rounding errors), 18 karat is 18/24 gold and 2.4 karat would be 2.4/24 = 10% gold. I don’t know if anyone actually uses fractional karat measurements like that.
I understand that, but I don’t really think that 2.4 karat is an actual designation of purity unless it’s some kind of ‘white gold’ with a ridiculously small amount of gold in it. This must mean something else, I would assume it’s just a spurious decimal point in ‘24 karat’.
Don’t forget, you have to run naked through the streets yelling that…
Next you’re going to start complaining about the fact that an ounce of gold doesn’t weigh the same as an ounce of anything else.
Well, it certainly weighs less than an ounce of feathers.
Easier with a smaller recipient, placed into another one which gets weighted before and after the spillover.
Still is. Gold medals are a popular export from Spain to India and SE Asia (Spanish goldsmiths normally work with 24K).
Do you guys have me set to Ignore? 
While Google will show overwhelmingly and almost unanimously the usual tradition (begun by Vitruvius) that Archimedes measured displaced water, Galileo thought otherwise. He figured Archimedes applied the full value of his buoyancy principle to measure the crown much more easily and accurately than any water measurement. (Some may assert that this would be a mighty clever method for Archimedes to devise. I note (a) Archimedes would hardly have celebrated ‘Eureka’ for the rather trivial solution, (b) Archimedes was certainly much cleverer than Galileo!)
I don’t know if Cecil our Leader has ruled on the matter, but several mathematical historians agree with Galileo. The matter may still be controversial, but Googling
“Galileo” “Vitruvius” “balance” How did archimedes test the crown
turns up many articles supporting Galileo’s theory, e.g.
I have a 4-pound cylinder of tungsten, which easily fits in the hand and is a surprise every time I pick it up. I have equal sized cylinders of copper, iron, aluminum, and magnesium as well, and they all feel cheap and plasticky after handling the tungsten for a while.
I did get it straight from China. Now I wonder if they cheated me and filled it with worthless gold instead.
Fun Fact: when platinum was first recognized by Europeans and before techniques existed to work it (pure platinum is much harder than gold or silver and it has a higher melting point than iron), its high density led many to worry that this “worthless” metal would make forging gold bars easier.
Oh rilly?
I have a nice stash of [strike]gold-coated tungsten bars[/strike] REAL GOLD BARS to sell you.