Originally Posted by
Tom Bombadil
What is heavier, a pound of feathers or a pound of lead?
What's heavier...a pound of feathers or a pound of gold?
The answer, amazingly, is the pound of feathers. Why, you might ask...
Well, commonly the weight of feathers is measured in pounds
avoirdupois, and such a pound is the weight of ~454 grams of the substance.
The weight of gold is measured in pounds
troy (actually it's measured in ounces, but a troy pound is 12 troy ounces), and such a pound is the weight of ~373 grams of the substance.
The feathers are definitely heavier.