Richard Romine was about to start his 50th season with Fountain Valley Little League when he died on Feb.18 at age 81.

Rocket launches face hidden challenges from cryogenic fuel leaks. Storing super-cold fuels like liquid hydrogen and oxygen at extreme temperatures creates engineering hurdles. Materials shrink, ...

Each occupant of a turbine-powered aircraft is assumed to weigh 200 lb., thus allowing for stowed luggage and carry-on items. In the case of piston-engine airplanes, we assume each occupant weighs 170 ...

Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon ...