On Thursday 10 July 2008 04:31:35 Nat Hager III wrote: > Hydrogen car article in US News... > > >>>Kilograms per what? The Hydrogen 7 has one of those onboard computers > > that display your fuel efficiency-for both gasoline and hydrogen. Gas > mileage, of course, is measured in the familiar mpg. But hydrogen mileage > is flipped around and expressed in kilograms per 100 kilometers.
Grams per kilometer, please? Or milligrams per meter? I don't care how long the French have been using litres au cent, it's bad form to put a number in the denominator of a unit, and it violates the principle of 1000. And the gasoline consumption should be expressed in the same unit, so that they can be directly compared, as well as liters per megameter (or microliters per meter). Also, anyone writing about hydrogen as a fuel should avoid saying "gas" for gasoline, as hydrogen is a gas. Pierre
