Maglev train
Germany and Japan are both developing "maglev" trains, and both are currently testing prototypes. The German company, "Transrapid International", also has a train in commercial use.  Although based on similar ideas, the German and Japanese trains have distinct differences. German engineers have developed an "electromagnetic suspension" (EMS) system, called "Transrapid". In this system, the bottom of the train wraps around a steel guideway. Electromagnets under the train are directed up toward the guideway, which lifts the train about 1/3 of an inch (1 centimeter) above the guideway. This lifts the train even when it's not moving. Other guidance magnets in the train's body keep it stable during travel. The Transrapid maglev train can reach 300 mph (490 kph) with passengers.