As the boat picks up speed, an underwater propeller drives a turbine which produces electricity. This electricity is then ...

Scientists from China’s Shanghai Jiao Tong University have developed a new type of submarine detection for underwater surveillance. According to its developers, the device can detect even the quietest ...

As propellers cut through the electric fields ... is equipped with instruments and battery compartments for long-term ...

Much of the underwater noise a ship produces comes from its propeller. As the blades spin, areas of low pressure are formed in their wake which cause the water to boil and produce bubbles ...