While on the face of it a pound of feathers would seem to weigh the same as a pound of gold, this overlooks the fact that gold is universally weighed using a different definition of 'pound' than that used for most other materials.
Precious metals such as gold are measured in troy weight. A troy pound is 12 troy ounces, and each troy ounce is 480 grains, making a total of 5760 grains to the pound of gold.
Most materials use pounds and ounces from the avoirdupois system, and such a standard pound is made up of 16 ounces, where each ounce is 437.5 grains, making a total of 7000 grains to the pound of feathers.
All this means that a "pound" of feathers (or bricks, or lead) is heavier than a "pound" of gold.
The question is an old gag, based on the fact that gold is measured in troy ounces, but feathers (like all material other than precious metals and gemstones) are measured in avoirdupois ounces. Because troy weight has 12 ounces to a pound, but avoirdupois weight has 16 ounces to a pound, the trick answer is that a pound of feathers (at 16 ounces) is heavier than a pound of gold (at 12 ounces).
Another user said:
A pound of anything weighs the same as a pound of anything else.
However, feathers as weighed using imperial weight, which puts 16 ounces to the pound. Gold is weighed using troy weights (for precious metals) which has 12 ounces to the pound.
So a pound of feathers weighs more than a pound of gold, since different pounds are spoken of.
Another user said:
A pound of feathers is heavier- because a pound is NOT always a pound. Gold, silver, platinum- and all precious metals are measured in TROY ounces and TROY pounds. A troy pound weighs less than a standard (avoirdupois) pound.
I figured out in converting material from pound to kg for quoting purposes we must use avdp. 1 avdp pound = 2.20462 kg and this is accepted by OEMs as the conversion. I double checked that to 1 short ton = 2000 avdp pounds whereas 1 short ton = 2430.556 troy pounds.
To find kinematic variables from a graph of position vs. time, one can calculate velocity by finding the slope of the graph at a specific point, and acceleration by finding the slope of the velocity vs. time graph. Additionally, one can determine displacement by finding the area under the velocity vs. time graph.
it matters what the substance is. If 878g of gold vs. 1487 g of silver, the density of gold is still more
Sand is denser than feathers. Since a given volume of a denser material has more mass than the same volume of a less dense material, when you make the masses the same, the volumes must vary.
A pound (a standard pound) is equal to 6,000 grains of barley. This pound is divided into 16 parts called ounces. Troy pounds, on the other hand, are composed 5760 grains. These pounds are usually used to measure precious metals. Each troy ounce is made up of 12 ounces.
They both weigh the same. A POUND of feathers vs. a POUND of rocks. A pound is a pound, and whether it is a pound of feathers or a pound of rocks, it doesn't matter. It's still a pound. THINK ABOUT IT!
Since the value of gold is by weight 1 lb of gold is worth more than 1/2 lb of gold by definition. The fact that there are more coins is irrelevant.
One troy pound is 0.8228571 avoirdupois pounds.
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Gold.
Each pound is 16 ounces.