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Oliver Shallenberger
Oliver Blackburn Shallenberger (May 7, 1860 – January 23, 1898) was an American electrical engineer and inventor. He is associated with electrical inventions related to alternating current. He is most noted for inventing the first successful alternating current (AC) electrical meter, the forerunner of the modern electric meter. This was critical to general acceptance of AC power. Early life Shallenberger was born in Rochester, Pennsylvania, on May 7, 1860. His parents were Aaron T. Shallenberger and Mary (Bonbright) Shallenberger. He attended public schools of Rochester in Beaver County. He also went to Beaver College in Beaver County for a short time. He then attended the United States Naval Academy at Annapolis as a cadet engineer in 1877. William Shadrack Shallenberger, a member of Congress, was his uncle and helped him get into the Academy. He was head of a list of 126 candidates and took special interest in their physics courses. For the first year he was at the top o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rochester, Pennsylvania
Rochester is a borough in Beaver County, Pennsylvania, United States. It is located at the confluence of the Beaver and Ohio rivers northwest of Pittsburgh. The population was 3,472 at the 2020 census. It is part of the Pittsburgh metropolitan area. Like many towns around Pittsburgh, Rochester was a former industrial hub, home to the H. C. Fry Glass Company, and was a major junction on the Pennsylvania Railroad. Rochester has been a background for films, including the 1986 movie '' Gung Ho'', the 1996 movie '' Kingpin'', and the 2000 movie '' Wonder Boys''. History What eventually became Rochester was originally a Lenape village called Sawcunk. The area was settled in 1799 in what was then the American frontier by white settlers and was known as East Bridgewater, Fairport, and Beaver Point. The borough adopted the name Rochester in 1834 when a local businessman who did regular business in Pittsburgh decided to christen his home with the name Rochester so he could have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newspapers
A newspaper is a Periodical literature, periodical publication containing written News, information about current events and is often typed in black ink with a white or gray background. Newspapers can cover a wide variety of fields such as politics, business, sports, art, and science. They often include materials such as opinion columns, weather forecasts, reviews of local services, Obituary, obituaries, birth notices, crosswords, editorial cartoons, comic strips, and advice columns. Most newspapers are businesses, and they pay their expenses with a mixture of Subscription business model, subscription revenue, Newsagent's shop, newsstand sales, and advertising revenue. The journalism organizations that publish newspapers are themselves often Metonymy, metonymically called newspapers. Newspapers have traditionally been published Printing, in print (usually on cheap, low-grade paper called newsprint). However, today most newspapers are also Electronic publishing, published on webs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikola Tesla
Nikola Tesla (;"Tesla" . ''Random House Webster's Unabridged Dictionary''. ; 10 July 1856 – 7 January 1943) was a Serbian-American engineer, futurist, and inventor. He is known for his contributions to the design of the modern alternating current (AC) electricity supply system. Born and raised in the Austrian Empire, Tesla first studied engineering and physics in the 1870s without receiving a degree. He then gained practical experience in the early 1880s working in telephony and at Continental Edison in the new electric power industry. In 1884 he immigrated to the United States, where he became a naturalized citizen. He worked for a short time at the Edison Machine Works in New York City before he struck out on his own. With the help of partners to finance and market his ideas, Tesla set up laboratories and companies in New York to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AC Motor
An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings. Less common, AC linear motors operate on similar principles as rotating motors but have their stationary and moving parts arranged in a straight line configuration, producing linear motion instead of rotation. Operating principles The two main types of AC motors are induction motors and synchronous motors. The induction motor (or asynchronous motor) always relies on a small difference in speed between the stator rotating magnetic field and the rotor shaft speed called slip to induce rotor current in the rotor AC winding. As a result, the induction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rube Goldberg
Reuben Garrett Lucius Goldberg (July 4, 1883 – December 7, 1970), better known as Rube Goldberg (), was an American cartoonist, sculptor, author, engineer, and inventor. Goldberg is best known for his popular cartoons depicting complicated gadgets performing simple tasks in indirect, convoluted ways. The cartoons led to the expression "Rube Goldberg machines" to describe similar gadgets and processes. Goldberg received many honors in his lifetime, including a Pulitzer Prize for political cartooning in 1948, the National Cartoonists Society's Gold T-Square Award in 1955, and the Banshees' Silver Lady Award in 1959. He was a founding member and first president of the National Cartoonists Society, which hosts the annual Reuben Award, honoring the top cartoonist of the year and named after Goldberg, who won the award in 1967. He is the inspiration for international competitions known as Rube Goldberg Machine Contests, which challenge participants to create a complicated machine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walking Beam
A marine steam engine is a steam engine that is used to power a ship or boat. This article deals mainly with marine steam engines of the reciprocating type, which were in use from the inception of the steamboat in the early 19th century to their last years of large-scale manufacture during World War II. Reciprocating steam engines were progressively replaced in marine applications during the 20th century by steam turbines and marine diesel engines. History The first commercially successful steam engine was developed by Thomas Newcomen in 1712. The steam engine improvements brought forth by James Watt in the later half of the 18th century greatly improved steam engine efficiency and allowed more compact engine arrangements. Successful adaptation of the steam engine to marine applications in England would have to wait until almost a century after Newcomen, when Scottish engineer William Symington built the world's "first practical steamboat", the '' Charlotte Dundas'', in 1802. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elihu Thomson
Elihu Thomson (March 29, 1853 – March 13, 1937) was an English-American engineer and inventor who was instrumental in the founding of major electricity, electrical companies in the United States, the United Kingdom and France. Early life He was born in Manchester, England, on March 29, 1853, but his family moved to Philadelphia in the United States in 1858. and Thomson attended Central High School (Philadelphia), Central High School in Philadelphia and graduated in 1870. Thomson took a teaching position at Central, and in 1876, at the age of twenty-three, held the chair of Chemistry. In 1880, he left Central to pursue research in the emerging field of electrical engineering. Electrical innovations With Edwin J. Houston, a former teacher and later colleague of Thomson's at Central High School, Thomson founded the Thomson-Houston Electric Company. Notable inventions created by Thomson during this period include an arc-lighting system, an automatically regulated three-coi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Edison
Thomas Alva Edison (February11, 1847October18, 1931) was an American inventor and businessman. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and early versions of the electric Incandescent light bulb, light bulb, have had a widespread impact on the modern industrial society, industrialized world. He was one of the first inventors to apply the principles of organized science and teamwork to the process of invention, working with many researchers and employees. He established the first industrial research laboratory. Edison was raised in the American Midwest. Early in his career he worked as a telegraph operator, which inspired some of his earliest inventions. In 1876, he established his first laboratory facility in Menlo Park, New Jersey, where many of his early inventions were developed. He later established a botanical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Condé Nast
Condé Nast () is a global mass media company founded in 1909 by Condé Nast (businessman), Condé Montrose Nast (1873–1942) and owned by Advance Publications. Its headquarters are located at One World Trade Center in the FiDi, Financial District of Lower Manhattan. The company's media brands attract more than 72 million consumers in print, 394 million in digital and 454 million across social media platforms. These include ''Vogue (magazine), Vogue'', ''The New Yorker'', ''Condé Nast Traveler'', ''Condé Nast Traveller'', ''GQ'', ''Glamour (magazine), Glamour'', ''Architectural Digest'', ''Vanity Fair (magazine), Vanity Fair, Pitchfork (website), Pitchfork'', ''Wired (magazine), Wired'', ''Bon Appétit'', and ''Ars Technica'', among many others. U.S. ''Vogue'' editor-in-chief Anna Wintour serves as Artistic Director and Global Chief Content Officer. In 2011, the company launched the Condé Nast Entertainment division, tasked with developing film, television, social and digit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wired Magazine
''Wired'' is a bi-monthly American magazine that focuses on how emerging technologies affect culture, the economy, and politics. It is published in both print and Online magazine, online editions by Condé Nast. The magazine has been in publication since its launch in January 1993. Its editorial office is based in San Francisco, California, with its business headquarters located in New York City. ''Wired'' quickly became recognized as the voice of the emerging digital economy and culture and a pace setter in print design and web design. From 1998 until 2006, the magazine and its website, ''Wired.com'', experienced separate ownership before being fully consolidated under Condé Nast in 2006. It has won multiple National Magazine Awards and has been credited with shaping discourse around the digital revolution. The magazine also coined the term Crowdsourcing, ''crowdsourcing'', as well as its annual tradition of handing out Vaporware Awards. ''Wired'' has launched several in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electricity Meter
file:Hydro quebec meter.JPG, North American domestic analog signal, analog (Galileo Ferraris, Ferraris disk) electricity meter. file:Transparent Electricity Meter found in Israel.JPG, Electricity meter with transparent plastic case (Israel) file:West Bengal State Electricity Distribution Company Limited electricity meter – Purulia, West Bengal, India.jpg, Electricity meter in West Bengal, IndiaAn electricity meter, electric meter, electrical meter, energy meter, or kilowatt-hour meter is a device that measures the amount of electric energy consumed by a House, residence, a business, or an electrically powered device over a time interval. Electric utility, Electric utilities use electric meters installed at customers' premises for electricity pricing, billing and monitoring purposes. They are typically calibrated in billing units, the most common one being the kilowatt hour (''kWh''). They are usually read once each billing period. When energy savings during certain periods ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
