Tag Archives: Liquid Lubricant

China’s Future Submarine could go the Speed of Sound

by Kelsey D. Atherton, Popular Science

Thanks to a gas bubble and a liquid lubricant

The submarine of the future may come to America in a super fast bubble, traveling under water. Researchers at China’s Harbin Institute of Technology developed a new concept for submarine “supercavitation,” where an underwater vessel creates a pocket of air around itself. Inside this bubble, the submarine can travel much faster without friction of water creating drag and slowing it down. Theoretically, a supercavitated vessel using rocket engines could travel inside that air pocket at almost the speed of sound. Continue reading China’s Future Submarine could go the Speed of Sound