Armed Polite Society
Main Forums => The Roundtable => Topic started by: Silver Bullet on May 26, 2020, 10:12:09 PM
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1) Which weighs more, an ounce of gold or an ounce of cotton?
2) Which weighs more, a pound of gold or a pound of cotton?
3) Which weighs more, an ounce of cotton or an ounce (fluid) of water?
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Troy?
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1 =
2 =
3 cotton oz < H20 Liquid oz
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1) A troy ounce is about 10% heavier than an av. (I can't spell it) ounce, so the ounce of gold is heavier.
2) A troy pound is only 12 troy ounces and a av. pound is 16 ounces, so even tho' the troy ounce is heavier it's not that much heavier. So the pound of cotton is heavier
3) Water is slightly denser than one ounce per fluid ounce, so the water weighs more.
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3) Which weighs more, an ounce of cotton or an ounce (fluid) of water?
US fluid ounce or Imperial ?
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US fluid ounce or Imperial ?
You get the same answer either way ;)
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You get the same answer either way ;)
By my math
US fluid oz = 1.0430511 oz
Imperial fluid oz = 1.0000168 oz Pretty darn close to 1
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Really? I thought an Imperial fl ounce had more volume than a US ounce, so I didn't look it up :facepalm:
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A pound is a pound is a pound. I can't believe this thread has gone on this long. :old: ??? [popcorn]
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Me either, I "won" it right out the gate!
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Ounce upon a midnight dreary, while I pondered, weak and weary...a
... that's all I got this late...
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1) A troy ounce is about 10% heavier than an av. (I can't spell it) ounce, so the ounce of gold is heavier.
2) A troy pound is only 12 troy ounces and a av. pound is 16 ounces, so even tho' the troy ounce is heavier it's not that much heavier. So the pound of cotton is heavier
3) Water is slightly denser than one ounce per fluid ounce, so the water weighs more.
This is correct. :cool:
Ounce (avoirdupois) of cotton = 28.35 grams.
Ounce (troy) of gold = 31.10 grams.
Ounce (liquid) of water = 29.57 grams.
Pound (avoirdupois) of cotton = 453.6 grams.
Pound (troy) of gold = 373.3 grams.
The two "tricks" are that gold is measured in troy ounces, which is heavier than an ounce of cotton (measured in avoirdupois); and that a troy pound only has 12 troy ounces, compared to an avoirdupois pound which has 16 avoirdupois ounces.
The ounce of water is just thrown in for added confusion. :lol:
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Are those American or English grams?
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Another reference:
https://www.free-bullion-investment-guide.com/troy.html (https://www.free-bullion-investment-guide.com/troy.html)
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Are those American or English grams?
Metric
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A pound is a pound is a pound. I can't believe this thread has gone on this long. :old: ??? [popcorn]
Not true. A dog pound weighs way more than an avoirdupois pound. :P
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Not true. A dog pound weighs way more than an avoirdupois pound. :P
That's because there are so few avoirdupois rescue agencies.
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Metric
I really don't carat all. I take it all with 64.799 milligrams of salt anyway. I'm going to take a 324mg aspirin pill now.
Terry, 230RN
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African or European swallow?
Brad
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Not true. A dog pound weighs way more than an avoirdupois pound. :P
:facepalm:
If you say so ..... ;/
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African or European swallow?
Brad
That's what she said.
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Technically, a "fluid" can be liquid or gas. How do you weigh water vapor?
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^ You can dense it out.
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Technically, a "fluid" can be liquid or gas.
https://en.wikipedia.org/wiki/Fluid_ounce (https://en.wikipedia.org/wiki/Fluid_ounce)
“A fluid ounce (abbreviated fl oz, fl. oz. or oz. fl. … is a unit of volume (also called capacity) typically used for measuring liquids.” :old:
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Technically, a "fluid" can be liquid or gas. How do you weigh water vapor?
I have an old book with steam tables that have that sort of information.
However at standard temperature and pressure, water vapor is more commonly encountered as a mixture with air. For that, psychometric charts list the specific volume of air/water vapor mixtures.
Fun side note, as more water vapor is added to air at a constant temperature, the specific volume increases - or in other words, the density decreases.
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When I was an active coin collector many years ago, I occasionally bought gold coins for their bullion value, so I had to know what I was getting. More recently, my wife sold some of her gold jewelry and I had to calculate the gold value based on the weight (in troy ounces) and the gold fineness (karat value, as in 14K gold = 14/24 pure).
But this is fun. :laugh: When I was a kid the question was, "which weighs more, an ounce of cotton or an ounce of lead?" And the answer was they both weigh the same. The rules change when you substitute gold for the lead because gold (or silver or platinum) is measured in troy ounces.
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^ You can dense it out.
(https://media.giphy.com/media/qIXVd1RoKGqlO/giphy.gif)
Also, water has a *lot* of different solid phases. (about 20 that we know of) Which one are we talking about?
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Also, water has a *lot* of different solid phases.
Are you talking about ice?
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Are you talking about ice?
Yes. Different crystalline structures with different densities. Kurt Vonnegut used one of them as a plot device in "Cat's Cradle", but real Ice IX doesn't have the same properties as in the book.
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What if it's Ice T drinking iced tea?
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"Fun side note, as more water vapor is added to air at a constant temperature, the specific volume increases - or in other words, the density decreases."
Oh, that's just psychro talk. Of course if you add a liter of water vapor to a gallon of air, you get more volumes, maybe even 4785 of them. (In Canada, 5546 of them, probably because of the higher-numbered latitudes.)
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Oh, that's just psychro talk. Of course if you add a liter of water vapor to a gallon of air, you get more volumes, maybe even 4785 of them. (In Canada, 5546 of them, probably because of the higher-numbered latitudes.)
The answer, my good fellow, is 42. Everyone knows that.
Brad
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The answer, my good fellow, is 42. Everyone knows that.
Brad
Which is what you get when you multiply six by nine :P