So one type of foot is different than another type of foot.
Another difference: which is heavier, a pound of gold or a pound of feathers? The pound of feathers.
The feathers are weighed using a system called “avoirdupois”: this is how we weigh things like food, equipment and ourselves. Precious metals like gold and silver are measured using the “troy” system. If you normalize everything to mass a pound of feathers is 454 grams and a pound of gold is 373 grams, therefore the feathers are technically heavier
Now, which is heavier: an ounce of gold or an ounce of feathers? The ounce of gold.
> Precious metals such as gold and silver, and gemstones, are measured in troy ounces. Everyday measurements (food, copper, your body weight) are measured in avoirdupois ounces. A troy ounce (12 to a troy pound) is about 10 percent heavier than an avoirdupois ounce (16 to an avoirdupois pound). When converted metrically, a troy ounce weighs 31.1 grams and an avoirdupois ounce is equal to 28.35 grams.
Another difference: which is heavier, a pound of gold or a pound of feathers? The pound of feathers.
The feathers are weighed using a system called “avoirdupois”: this is how we weigh things like food, equipment and ourselves. Precious metals like gold and silver are measured using the “troy” system. If you normalize everything to mass a pound of feathers is 454 grams and a pound of gold is 373 grams, therefore the feathers are technically heavier
* https://www.suse.com/c/want-pound-feathers-pound-gold/
Now, which is heavier: an ounce of gold or an ounce of feathers? The ounce of gold.
> Precious metals such as gold and silver, and gemstones, are measured in troy ounces. Everyday measurements (food, copper, your body weight) are measured in avoirdupois ounces. A troy ounce (12 to a troy pound) is about 10 percent heavier than an avoirdupois ounce (16 to an avoirdupois pound). When converted metrically, a troy ounce weighs 31.1 grams and an avoirdupois ounce is equal to 28.35 grams.
* https://www.coinworld.com/news/us-coins/what-is-heavier.html
See:
* https://en.wikipedia.org/wiki/Avoirdupois_system
* https://en.wikipedia.org/wiki/Troy_weight