cubic gallons

[Jonathan Lighter]

Fox News reports this morning that the municipal pumping stations in N.O. are pumping out "miliions of cubic gallons" of water per hour.

Here's a site from 1997-99 that says the cubic gallon is real [http://wings.avkids.com/Book/Flight/intermediate/measure-01.html] : "Other cubic measures are: Cubic meters, cubic gallons, cubic liters."

It's copyrighted by Cislunar Aerospace, Inc., so it must be accurate !  About 500 Googlits for "cubic gallons" too !  (Fewer for "metric gallons.")

Can anyone provide a scientific explanation ?   Or is science baffled once again ?

JL






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