Twisted Shop Class » Making Everything Golden
sing sheets so thin they're measured in atoms, you can cover anything with a lasting coat of pure gold. Malleable things can be hammered thinner without breaking; ductile things can be stretched thinner without snapping. Every material has its limit, but with gold, that limit is just a few hundred atoms thick. Gold is the most malleable and the most ductile of all metals. A cube of it about 2.5 inches on edge could be beaten out to cover an entire football field (at a cost of roughly $68,000, plus beating fees). Gold this thin is called gold leaf, and the ancient art of applying it for decoration is called gilding.
How thin is gold leaf? Using my steel rolling mill, I can make gold foil about one thousandth of an inch thick, similar to aluminum foil. Thin, sure, but gold leaf is nearly 500 times as thin as that.