Search results
Results from the WOW.Com Content Network
Time on a ship's clocks and in a ship's log had to be stated along with a "zone description", which was the number of hours to be added to zone time to obtain GMT, hence zero in the Greenwich time zone, with negative numbers from −1 to −12 for time zones to the east and positive numbers from +1 to +12 to the west (hours, minutes, and ...
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 California Electric Company (now PG&E) in San Francisco in 1879 used two direct current generators from Charles Brush's company to supply multiple customers with power for their arc lamps. This San Francisco system was the first case of a utility selling electricity from a central plant to multiple customers via transmission lines. [11]
A high-voltage shore connection (HVSC) is an electrical connection between a ship and an electric grid, allowing the ship to shut off its engine and reduce fuel consumption and carbon emissions. [1] The ship can use electric power for its consumption of energy. They are mostly used in the cruise ships which dock for longer time and hence save ...
In the 1820s, the U.S. Navy was called upon to protect ships off Florida's coasts from pirates that plagued merchant ships in the Caribbean. One of the patrol ships was USS Alligator, lost near Islamorada while escorting a merchant convoy. Artist illustration of USS Alligator, which ran aground on a reef near Islamorada on November 18, 1822
1907: Rosenthal puts in his image telegraph for the first time a photocell. 1911: First film studios are created in Hollywood and Potsdam- Babelsberg . 1912: The first radio receiver is created, in accordance with the Audion principle. 1913: The legal battle over the invention of the electron tube between Robert von Lieben and Lee de Forest is ...
It can be used for any electrical ship application up to 20 megawatts and operates at a nominal voltage of 1000 V DC. The DC distribution system is simply an extension of the multiple DC links that already exist in all propulsion and thruster drives, which usually account for more than 80 percent of the electrical power consumption on electric ...
Blyth's windmill at his cottage in Marykirk in 1891 Wind powered generators were used on ships by the end of the 19th century, as seen on the New Zealand sailing ship "Chance" (1902). The first wind turbine used for the production of electricity was built in Scotland in July 1887 by Prof James Blyth of Anderson's College, Glasgow (the precursor ...