direct current brake
61Swedish inventions — are novel ideas and machines that have been pioneered in Sweden. In the 18th century Sweden s scientific revolution took off. Previously, technical progress had mainly come from professionals who had immigrated from mainland Europe. In 1739, the… …
62ER200 — The ER200 was a Russian electric train built in Riga by Rīgas Vagonbūves Rūpnīca. It was the first high speed Direct Current intercity Electric Multiple Unit (EMU) with rheostatic brake.There were two designs. First in 1974 came the ER200 1 EMU… …
63FS Class E412 — Infobox Locomotive name=FS class E412 powertype=Electric electricsystem=3,000 V DC 15 kV AC 1,500 V DC tractionmotors=3 phase asynchronous caption=E412.018 in Verona station builddate=1996 ndash; 1998 builder=Adtranz, then Bombardier weight=88.7… …
64Photovoltaics — (PV) is the field of technology and research related to the application of solar cells for energy by converting sunlight directly into electricity. Due to the growing need for solar energy, the manufacture of solar cells and photovoltaic arrays… …
65dynamometer — /duy neuh mom i teuhr/, n. 1. a device for measuring mechanical force, as a balance. 2. a device for measuring mechanical power, esp. one that measures the output or driving torque of a rotating machine. [1800 10; DYNAMO + METER] * * * ▪… …
66Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …
67Hamburg S-Bahn — Other plans, which are currently shelved, would have the S Bahn network dramatically increased. S Bahn trains would go as far as Kaltenkirchen (the private AKN Eisenbahn currently connects to Kaltenkirchen from Eidelstedt). An expansion plan… …
68LM-57 — The LM 57 (Russian ЛМ 57 ) is the Soviet motor four axle tramcar. First prototype of this vehicle was built in 1957 (hence the 57 in the name) at the Leningrad Wagon Repair Plant (VARZ, ВАРЗ, Ленинградский Вагоноремонтный Завод Russian… …
69Viscometer — A viscometer (also called viscosimeter) is an instrument used to measure the viscosity of a fluid. For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used. Viscometers only measure under one flow… …
70Wind power — Wind power: worldwide installed capacity [1] …
