South Korean investigators found feathers in both engines of the Boeing Co. 737-800 jet involved in a crash late last month, pointing to possible evidence that the aircraft may have lost ...

The researchers said the new technology can produce nearly 70,000 newtons of thrust - almost the force of a commercial jet engine - using 2 megawatts of laser power emitted through the submarine's ...

pulsating Trembita engine. Its task is to destroy objects and exhaust the enemy’s anti-aircraft defense at a depth of up to 140 km. A pulse jet engine operates by generating thrust through a ...