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Augustus Jesse Bowie Jr.
Augustus Jesse Bowie Jr. (December 10, 1872 – June 22, 1955, birth name Augustus Jesse Bowie III) was a pioneering American technology engineer, inventor and entrepreneur. His early innovations in large-capacity switch, electrical switches, including the 1000lb. Disconnector, 287Kv disconnecting switch, were important in the spread of electrification on the West Coast of the United States during the 1910s-1920s, and became essential to the New Deal's mass-scale Rural Electrification Act, rural electrification efforts in the 1930s. Bowie was an 1896 graduate of the engineering program at MIT in Boston, the region of the United States was the center of innovation in and promulgation of electrification, which was primarily oriented towards centralized urban office/industrial use. Bowie, however, was born and bred in the San Francisco bay area of California, and his mass electrification innovations were put into use in that geographically spread out region first, allowing for the bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Switch
In electrical engineering, a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit, interrupting the electric current or diverting it from one conductor to another. The most common type of switch is an electromechanical device consisting of one or more sets of movable electrical contacts connected to external circuits. When a pair of contacts is touching current can pass between them, while when the contacts are separated no current can flow. Switches are made in many different configurations; they may have multiple sets of contacts controlled by the same knob or actuator, and the contacts may operate simultaneously, sequentially, or alternately. A switch may be operated manually, for example, a light switch or a keyboard button, or may function as a sensing element to sense the position of a machine part, liquid level, pressure, or temperature, such as a thermostat. Many specialized forms exist, such as the toggle swit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loyalist
Loyalism, in the United Kingdom, its overseas territories and its former colonies, refers to the allegiance to the British crown or the United Kingdom. In North America, the most common usage of the term refers to loyalty to the British Crown, notably with the loyalists opponents of the American Revolution, and United Empire Loyalists who moved to other colonies in British North America after the revolution. Historical loyalism 18th century North America In North America, the term ''loyalist'' characterised colonists who rejected the American Revolution in favour of remaining loyal to the king. American loyalists included royal officials, Anglican clergymen, wealthy merchants with ties to London, demobilised British soldiers, and recent arrivals (especially from Scotland), as well as many ordinary colonists who were conservative by nature and/or felt that the protection of Britain was needed. Colonists with loyalist sympathies accounted for an estimated 15 per cent to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voltage Converter
A voltage converter is an electric power converter which changes the voltage of an electrical power source. It may be combined with other components to create a power supply. AC and DC AC voltage conversion uses a transformer. Conversion from one DC voltage to another requires electronic circuitry ( electromechanical equipment was required before the development of semiconductor electronics), like a DC-DC converter. Mains power (called household current in the US) is universally AC. Practical voltage converters Mains converters A common use of the voltage converter is for a device that allows appliances made for the mains voltage of one geographical region to operate in an area with different voltage. Such a device may be called a ''voltage converter'', ''power converter'', ''travel adapter'', etc. Most single phase alternating-current electrical outlets in the world supply power at 210–240 V or at 100–120 V. A transformer or autotransformer can be used; ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightning Arrester
A lightning arrester (alternative spelling lightning arrestor) (also called lightning isolator) is a device, essentially an air gap between an electric wire and ground, used on electric power transmission and telecommunication systems to protect the insulation and conductors of the system from the damaging effects of lightning. The typical lightning arrester has a high-voltage terminal and a ground terminal. When a lightning surge (or switching surge, which is very similar) travels along the power line to the arrester, the current from the surge is diverted through the arrester, in most cases to earth. In telegraphy and telephony, a lightning arrester is placed where wires enter a structure, preventing damage to electronic instruments within and ensuring the safety of individuals near them. Smaller versions of lightning arresters, also called surge arresters, are devices that are connected between each conductor in power and communications systems and the earth. These pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aj Bowie Switch
AJ, or variants, may refer to: Arts, entertainment and media Fictional characters * A. J. (''The Fairly OddParents''), a fictional character * A.J. Soprano, a fictional character in ''The Sopranos'' * Superspinner AJ, a fictional character in the Starflyers series of computer games * AJ, in ''AJ and the Queen'', an American comedy-drama TV series * Apollo Justice, a fictional character from Apollo Justice: Ace Attorney Literature * ''Aj'' (newspaper), a Hindi-language daily broadsheet newspaper in India * ''Architects' Journal'', an architectural magazine * ''The Astronomical Journal'', a peer-reviewed monthly scientific journal Businesses and organisations * Al Jazeera, a Qatar-based international Arabic news channel ** AJ+, an online news and current events channel * AJ Capital Partners, an American private real estate company * AJ's Fine Foods, an American supermarket chain * AJ Institute of Engineering and Technology, in Mangalore, India Other uses * AJ (given name), i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Gas And Electric Company
The Pacific Gas and Electric Company (PG&E) is an American investor-owned utility (IOU). The company is headquartered in the Pacific Gas & Electric Building, in San Francisco, California. PG&E provides natural gas and electricity to 5.2 million households in the northern two-thirds of California, from Bakersfield and northern Santa Barbara County, almost to the Oregon and Nevada state lines. Overseen by the California Public Utilities Commission, PG&E is the leading subsidiary of the holding company PG&E Corporation, which has a market capitalization of $3.242 billion as of January 16, 2019. PG&E was established on October 10, 1905 from the merger and consolidation of predecessor utility companies, and by 1984 was the United States' "largest electric utility business". PG&E is one of six regulated, investor-owned electric utilities (IOUs) in California; the other five are PacifiCorp, Southern California Edison, San Diego Gas & Electric, Bear Valley Electric, and Liber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas A
Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (other) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the Apostle * Thomas (bishop of the East Angles) (fl. 640s–650s), medieval Bishop of the East Angles * Thomas (Archdeacon of Barnstaple) (fl. 1203), Archdeacon of Barnstaple * Thomas, Count of Perche (1195–1217), Count of Perche * Thomas (bishop of Finland) (1248), first known Bishop of Finland * Thomas, Earl of Mar (1330–1377), 14th-century Earl, Aberdeen, Scotland Geography Places in the United States * Thomas, Illinois * Thomas, Indiana * Thomas, Oklahoma * Thomas, Oregon * Thomas, South Dakota * Thomas, Virginia * Thomas, Washington * Thomas, West Virginia * Thomas County (other) * Thomas Township (other) Elsewhere * Thomas Glacier (Greenland) Arts, entertainment, and media * ''Thomas'' (Burto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Swan
Sir Joseph Wilson Swan Fellow of the Royal Society, FRS (31 October 1828 – 27 May 1914) was an English physicist, chemist, and inventor. He is known as an independent early developer of a successful incandescent light bulb, and is the person responsible for developing and supplying the first incandescent lights used to illuminate homes and public buildings, including the Savoy Theatre, London, in 1881. In 1904 Swan was Knight Bachelor, knighted by Edward VII, King Edward VII, awarded the Royal Society's Hughes Medal, and was made an honorary member of the Royal Pharmaceutical Society of Great Britain, Pharmaceutical Society. He had received the highest decoration in France, the Legion of Honour, when he visited the International Exposition of Electricity, 1881 International Exposition of Electricity, Paris. The exhibition included displays of his inventions, and the city was lit with his electric lighting. Early life Joseph Wilson Swan was born in 1828 at Pallion Hall in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard College
Harvard College is the undergraduate college of Harvard University, an Ivy League research university in Cambridge, Massachusetts. Founded in 1636, Harvard College is the original school of Harvard University, the oldest institution of higher learning in the United States and among the most prestigious in the world. Part of the Faculty of Arts and Sciences, Harvard College is Harvard University's traditional undergraduate program, offering AB and SB degrees. It is highly selective, with fewer than five percent of applicants being offered admission in recent years. Harvard College students participate in more than 450 extracurricular organizations and nearly all live on campus—first-year students in or near Harvard Yard, and upperclass students in community-oriented "houses". History The school came into existence in 1636 by vote of the Great and General Court of the Massachusetts Bay Colony—though without a single building, instructor, or student. In 1638, the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heidelberg University
} Heidelberg University, officially the Ruprecht Karl University of Heidelberg, (german: Ruprecht-Karls-Universität Heidelberg; la, Universitas Ruperto Carola Heidelbergensis) is a public research university in Heidelberg, Baden-Württemberg, Germany. Founded in 1386 on instruction of Pope Urban VI, Heidelberg is Germany's oldest university and one of the world's oldest surviving universities; it was the third university established in the Holy Roman Empire. Heidelberg is one of the most prestigious and highly ranked universities in Europe and the world. Heidelberg has been a coeducational institution since 1899. The university consists of twelve faculties and offers degree programmes at undergraduate, graduate and postdoctoral levels in some 100 disciplines. The language of instruction is usually German, while a considerable number of graduate degrees are offered in English as well as some in French. As of 2021, 57 Nobel Prize winners have been affiliated with the city ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of San Francisco
The University of San Francisco (USF) is a private Jesuit university in San Francisco, California. The university's main campus is located on a setting between the Golden Gate Bridge and Golden Gate Park. The main campus is nicknamed "The Hilltop" and is split into two sections. Part of the main campus is located on Lone Mountain, one of San Francisco's major geographical features. Its close historical ties with the City and County of San Francisco are reflected in the university's traditional motto, ''Pro Urbe et Universitate'' ('For the City and University'). History Founded by the Jesuits in 1855 as St. Ignatius Academy, USF started as a one-room schoolhouse along Market Street in what later became downtown San Francisco. Father Anthony Maraschi, S.J. (1820-1897) was the college's founder and first president, a professor, the college's treasurer, and the first pastor of St. Ignatius Church. Under Maraschi, St. Ignatius Academy received its charter to issue college de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
