LPC wrote:fortinbras wrote:Silver and gold are commonly weighed by TROY ounces, not avoirdupois.
Which is the solution to an old trick question: Which weighs more, an ounce of gold or an ounce of feathers?
The trick question was usually "... a POUND of gold or a POUND of feathers..."
Why? Because this makes it more of a trick
Because although troy ounces (31.10 grams) are a bit weightier than avoirdupois ounces (28.35 grams), Troy pounds are only
12 troy ounces (373.2 grams), while Avoirdupois pounds are the familiar
16 avoirdupois ounces (453.6 grams). This makes troy pounds lighter weight than avoidupois pounds (troy pound = 82.27% of an avoirdupois pound). So a POUND of feathers (measured in avoirdupois) weighs 80.4 grams more than a POUND of gold (measured in troy).
Have I bored everybody yet?