Hotchkiss gun

Tarbela, tahr BEHL uh, Dam in Pakistan, is one of the largest dams in the world. It contains 138,600,000 cubic yards (106,000,000 cubic meters) of… See more » Hydraulic, hy DRAW lihk, engine, or fluidic engine, is a machine that produces motion by means of pressure from water or some other fluid. This… See more » Digital music player is an electronic device used to store music as digital (numeric) code and then to play back the music. Most players are… See more »