Re: Sumerian gold

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Martin wrote:
>
> In fact, you can get gold as hard as steel. You just have to keep on
> hammering it to the point of breaking. That way you increase the density
> of the metal to the highest. BTW, gold is never 24 carat, but merely
> 23.99 in the purest form.
>
> So, it is nothing what can't be duplicated today.
>
> Martin.

You can hammer on gold until the sun grows cold, and you will not
increase it's density one iota. Hammering hot metal (usually iron or
steel) to increase its hardness is called tempering. It doesn't work by
increasing density. It works by fracturing the crystaline structure of
the metal, thereby establishing internal stresses. I suppose that
tempering could affect the hardness of gold, but it would never come
close to that of steel.

Steve Barnard

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