The Russians've set up a new kind of artillery, a rocket launcher called " Stalin's Organ" or " Katyusha" , because of its sound like a nest organ pipes, a most terrified weapon.
The Iron Dome is a very sophisticated radar system. When a rocket is launched into Israel, the radar tracks its trajectory, calculates an impact point and launches a missile to shoot it down.
Some futurists envision nanotechnology also being used to explore the deep sea in small submarines, or even to launch finger-sized rockets packed with microminiature instruments.