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Date Format


KannikaP

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This style of date is what we were taught in school.  Nobody really questioned why.  It was just decreed as the accepted norm.

 

The US department of Education has a board of directors who dictate to the Education Secretary and staff what to teach children in conjunction with each state.

 

This department has the third biggest budget to dole out.  So teachers teach as directed or don't get government accredidation and funding.

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30 minutes ago, KannikaP said:

Because only USA uses that format. Can I, and the rest of the World, be wrong?

You not necessarily have to be wrong. As USA not have to be wrong. Same like asking why all countries in the world does not use ABC. Some nations and some people just make it in a different way, and as you seem to be well aware of that it should not pose a problem for you.

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11 minutes ago, Gottfrid said:

You not necessarily have to be wrong. As USA not have to be wrong. Same like asking why all countries in the world does not use ABC. Some nations and some people just make it in a different way, and as you seem to be well aware of that it should not pose a problem for you.

OK, let's end it here. Cheers.

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On 9/13/2023 at 4:11 PM, mrfill said:

But the metric system also uses the same basis for volume derivation.

 

A cubic inch of water weighs one ounce and a pint should have weighed a pound (16 oz) but it was decided in 1824 to replace the various different gallon formats with a single definition that it should weigh 10lb. With 8 pints to the gallon it meant that each pint weighs a pound and a quarter or 20 oz.

 

In metric a cubic centimetre of water weighs one gram and a litre weighs a kilogram so if you order a half kilo of beer you'll get 500cc or half a litre....

This is all true for water or any liquid with the exact same density of water. However, an ounce of liquid with, say, half the denisty of water will have twice the actual volume. The reverse is also true; an ounce of mercury will have a volume of way, way less than 28.35ml.

Using ounces as a measure of volume for a liquid will always be inacccurate because doing so fails to take into account the fact different liquids have different densities. However, in practical terms, most liquids commonly 'measured' in ounces (alcholic drinks, milk) have a density quite close to that of water, so although slightly inaccurate it works ok.

 

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On 9/20/2023 at 8:50 AM, Davedub said:

This is all true for water or any liquid with the exact same density of water. However, an ounce of liquid with, say, half the denisty of water will have twice the actual volume. The reverse is also true; an ounce of mercury will have a volume of way, way less than 28.35ml.

Using ounces as a measure of volume for a liquid will always be inacccurate because doing so fails to take into account the fact different liquids have different densities. However, in practical terms, most liquids commonly 'measured' in ounces (alcholic drinks, milk) have a density quite close to that of water, so although slightly inaccurate it works ok.

 

Are you taking into consideration the difference between a fluid ounce and the ounce as a unit of weight or mass? One oz weight = 28.3495 grams, while one fluid ounce H2O weighs 29.57 grams. Fluid oz and the mass that is equal to 1/16 of a pound are not interchangeable.

 

Therefore, one fluid oz of water, alcohol, mercury, oil, gasoline or anything else of differing specific gravity, will have differing weights.

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