Search results
Results from the WOW.Com Content Network
Cold ironing is a shipping industry term that first came into use when all ships had coal-fired engines. When a ship tied up at port there was no need to continue to feed the fire and the iron engines would literally cool down, eventually going completely cold, hence the term cold ironing.
Columbia was the first ship to carry a dynamo powering electric lights instead of oil lamps and the first commercial use of electric light bulbs outside of Thomas Edison's Menlo Park, New Jersey laboratory. [7] [11] [12] Due to this, a detailed article and composite illustration of Columbia was featured in the May 1880 issue of Scientific ...
The inventors are also credited with the first use of the word "transformer" to describe a device for altering the EMF of an electric current. [30] [32] A very first operative AC line was put into service in 1885 in via dei Cerchi, Rome, Italy, for public lighting. It was powered by two Siemens & Halske alternators rated 30 hp (22 kW), 2 kV at ...
The first USS Trenton was a wooden-hulled screw steamer, classified as a screw frigate, in the United States Navy.She was named for Trenton, New Jersey.. Trenton was laid down by the New York Navy Yard in 1875; launched on 1 January 1876; sponsored by Miss Katherine M. Parker; and commissioned on 14 February 1877, Captain John Lee Davis in command.
The war of the currents was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s. It grew out of two lighting systems developed in the late 1870s and early 1880s: arc lamp street lighting running on high-voltage alternating current (AC), and large-scale low-voltage direct current (DC) indoor incandescent lighting ...
The transmitter Witzleben uses the new standard with 441 lines and 25 image changes, i.e. 50 fields of 220 half-lines. Until the HDTV era the interlace method remains in use. First movie encoder make it possible not to send the TV live, but to rely on recordings. 1938 The improved AEG tape-recorder "Magnetophon K4" is first used in radio studios.
MH-1A was a floating nuclear power plant and the first ever built. MH-1A was used to generate electricity at the Panama Canal Zone from 1968 to 1975. She was also used as a fresh water generating plant. She is anchored in the James River Reserve Fleet. [62] The ship was dismantled in 2019 in Brownsville, Texas. [63]
The nuclear navies of the United States, the United Kingdom, and the Russian Federation rely on steam turbine propulsion. Those of the French and Chinese use the turbine to generate electricity for propulsion. Most Russian submarines as well as all U.S. surface ships since Enterprise are powered by two or more reactors. U.S., British, French ...