Re:International System of Units overhauled in historic vote
by Cd00d on Friday November 16, 2018 @10:51PM
(#18473827)
A gallon is NOT 10 pounds of water.
Rough conversions: 1.1, 2.2, 3.3 for volume (quart to L), weight (pound to kg), length (foot to m).
One gallon is: 4 quarts * (1 L / 1.1 quarts) * (1 kg / L) * (2.2 pounds / kg) = 4 * 2.2 / 1.1, so a gallon is roughly 8 pounds.
Re:International System of Units overhauled in historic vote
by sib on Friday November 16, 2018 @10:07PM
(#18473692)
>> "A gallon is still a base 10 unit of measure of water (10 pounds of water)."
Not sure what you are getting at here. A gallon is about 8.3 lbs (3.8kg).
A gallon is 128 oz, a nice base-2 number.
Then if you look at imperial units of weight, it deviates away from base 12 again. It counts upwards from a pound using base 14 with stone and ton. And then when counting downwards it uses base 16 for a little bit with ounces, followed by out of nowhere throwing in a 1/7000 for a grain unit.
Even ignoring the scientific applications, none of this is easier for visualization purposes than grams or kilograms, nor is it all that useful for volumetric units either with maybe the exception of using cups instead of milliliters for cooking.