Off topic, but too fun not to mention: An ounce of gold weighs more than an ounce of feathers. This is because an ounce of gold is a troy ounce (1/12 of a pound), and an ounce of feathers is an avoirdupois ounce (1/16 of a pound).
As a native from a country that uses the metric system, this sentence is both amusing and saddening.
As a native from a country that uses the metric system, this sentence is both amusing and saddening.