I was eager to set off in our recently acquired boat, Ruach, a 13.5-foot trailerable Expo Solar Sailer designed by Garry Hoyt, Ted Hood, and Everett Pearson. Cath, a first-timer, was nervous, but throwing in a picnic
Hmm. Perhaps it was no accident that Audi had such a large display of hot cars outside the tents on the '07 circuit.
In the "Know-How" section of the March issue, Steven J. Henkind wrote about how fuel gauges operate and how you can prevent fuel-gauge errors. Here's the mathematical formula he discussed in the story.
You can also calculate the amount of fuel in a tank mathematically. For a rectangular tank, the calculation is easy: the overall volume of the tank = Length x Width x Height; if the