I had a new battery installed in my 2000 Volvo S70 a couple of months ago. The car sat for a couple of weeks, and now the battery appears to be dead.

Helicopters can be as dangerous as they are valuable, in part because of a phenomenon called rotor wash. What is rotor wash, ...

Drilled rotors, also called cross-drilled rotors, feature holes drilled clean through the brake rotor. Slotted rotors, meanwhile, utilize long grooves cut in the rotor face.

American defense contractor Bell was selected by DARPA to move forward with the build of its aircraft for the Speed and ...

The state’s Labor leader Dean Winter announced plans to provide a lifeline to a lifesaving rescue service in Tasmania, which ...

Brake rotors should be 8 to 30 mm thick, or whatever your vehicle manufacturer recommends. Measure them with a brake rotor gauge or micrometer measuring tool.

Rotor-Lift’s Allana Corbin says her Hobart-based company has been left in limbo while the Liberal government considers ...

How BMW’s Rotor Design Enhances EV Motor Efficiency. In recent months, General Motors, Porsche, Mercedes-Benz, and Hyundai have all submitted patents for improved rotor designs for electric ...

The main rotor of the doomed helicopter that crashed into the Hudson River was finally recovered Monday -- as investigators continue to probe what caused the deadly tragedy.

Rotor failure could have been mechanical problem. It's also possible there was a mechanical failure or a defect with a component of the helicopter, Brauchle said.