A Redditor who goes by Okgal2112 took her car in for an oil change when she was 21, but what the mechanic said has stayed ...

A stealth fighter without enough fuel to reach its operating zone isn't much use, but adding fuel tanks could ruin the F-35's stealth profile.

When you fill up your car at the pump, you probably don’t think much about the tank holding all that fuel. Yet the design and ...