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Adolphe Alexandre Chaillet
Adolphe Alexandre Chaillet (July 15, 1867, in Paris – after 1914) was a French inventor in the field of electrical engineering. Chaillet created the Centennial Light, which has been illuminating a fire station in Livermore, California, for over a century. Chaillet was knowledgeable in chemistry and mineralogy. Early life Adolphe A. Chaillet was born in Paris on July 15, 1867. He was the son of Samuel Alexander Chaillet, a Swedish watchmaker, and Eugénie Eva Wendawowicz, a Russian.Twelfth Census of the United States, enumerated on June 18, 1900, Shelby Village, Precinct B, Sharon Township, Richland County, Ohio, Vol 130, E. D. 136, Sheet 14, Line 96. Chaillet was a graduate of both German and French scientific institutions. In addition to a thorough knowledge of electrical engineering, Chaillet was capable as a chemist and mineralogist. In a newspaper article, he commented on Darwin's theory of evolution. Chaillet started in the incandescent lamp business with his fat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris, France
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the List of cities proper by population density, 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, Fashion capital, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called Caput Mundi#Paris, the capital of the world. The City of Paris is the centre of the Île-de-France Regions of France, region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeffrey Manufacturing Company
The Jeffrey Manufacturing Company was one of the largest industrial plants in Columbus, Ohio during the Second Industrial Revolution. It belonged to the original cluster of factories which were set up in the Milo-Grogan area of the city, including manufacturer Kilbourne and Jacobs. During this period, Ohio's economy transformed from agricultural to industrial, making the state one of the largest coal-producing and consuming states in the US. Manufacturers in the region stimulated the transformation by producing high volumes of railroad and mining equipment and farming machinery. According to the COSI Center of Science and Industry, the Jeffrey Manufacturing Company played a significant role in the success of the coal mine.{{Cite web, url=http://oldcosi.com/jeffrey.htm, title=The Jeffrey Manufacturing Company, website=oldcosi.com, access-date=2018-05-02 The Jeffrey Manufacturing Co. began as the Lechner Mining Machine Company in 1877, and was purchased by Joseph Andrews Jeffrey ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellis Island
Ellis Island is a federally owned island in New York Harbor, situated within the U.S. states of New York and New Jersey, that was the busiest immigrant inspection and processing station in the United States. From 1892 to 1954, nearly 12 million immigrants arriving at the Port of New York and New Jersey were processed there under federal law. Today, it is part of the Statue of Liberty National Monument and is accessible to the public only by ferry. The north side of the island is the site of the main building, now a national museum of immigration. The south side of the island, including the Ellis Island Immigrant Hospital, is open to the public only through guided tours. In the 19th century, Ellis Island was the site of Fort Gibson and later became a naval magazine. The first inspection station opened in 1892 and was destroyed by fire in 1897. The second station opened in 1900 and housed facilities for medical quarantines and processing immigrants. After 1924, Ellis Island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexican Revolution
The Mexican Revolution ( es, Revolución Mexicana) was an extended sequence of armed regional conflicts in Mexico from approximately 1910 to 1920. It has been called "the defining event of modern Mexican history". It resulted in the destruction of the Federal Army and its replacement by a revolutionary army, and the transformation of Mexican culture and Federal government of Mexico, government. The northern Constitutionalists in the Mexican Revolution, Constitutionalist faction prevailed on the battlefield and drafted the present-day Constitution of Mexico, which aimed to create a strong central government. Revolutionary generals held power from 1920 to 1940. The revolutionary conflict was primarily a civil war, but foreign powers, having important economic and strategic interests in Mexico, figured in the outcome of Mexico's power struggles. The United States involvement in the Mexican Revolution, United States played an especially significant role. Although the decades-long r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico City
Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley of Mexico within the high Mexican central plateau, at an altitude of . The city has 16 boroughs or ''demarcaciones territoriales'', which are in turn divided into neighborhoods or ''colonias''. The 2020 population for the city proper was 9,209,944, with a land area of . According to the most recent definition agreed upon by the federal and state governments, the population of Greater Mexico City is 21,804,515, which makes it the sixth-largest metropolitan area in the world, the second-largest urban agglomeration in the Western Hemisphere (behind São Paulo, Brazil), and the largest Spanish language, Spanish-speaking city (city proper) in the world. Greater Mexico City has a gross domestic product, GDP of $411 billion in 2011, which makes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photometer
A photometer is an instrument that measures the strength of electromagnetic radiation in the range from ultraviolet to infrared and including the visible spectrum. Most photometers convert light into an electric current using a photoresistor, photodiode, or photomultiplier. Photometers measure: *Illuminance *Irradiance *Light absorption * Scattering of light *Reflection of light *Fluorescence *Phosphorescence *Luminescence History Before electronic light sensitive elements were developed, photometry was done by estimation by the eye. The relative luminous flux of a source was compared with a standard source. The photometer is placed such that the illuminance from the source being investigated is equal to the standard source, as the human eye can judge equal illuminance. The relative luminous fluxes can then be calculated as the illuminance decreases proportionally to the inverse square of distance. A standard example of such a photometer consists of a piece of paper with an o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shelby Electric
Shelby may refer to: Places United States * Shelby, Alabama, a census-designated place and unincorporated community * Shelby, Idaho * Shelby, Indiana, an unincorporated town * Shelby, Iowa, a city * Shelby, Oceana County, Michigan, a village * Shelby, Mississippi, a city * Shelby, Missouri, an unincorporated community * Shelby, Montana, a city * Shelby, Nebraska, a village * Shelby, New York, a town * Shelby, North Carolina, a small city * Shelby, Ohio, a city * Shelby, Texas, an unincorporated town * Shelby, Virginia * Shelby, Wisconsin, a town ** Shelby (community), Wisconsin, an unincorporated community * Camp Shelby, a military post adjacent to Hattiesburg, Mississippi * Fort Shelby (Michigan), a military fort in Detroit, in use from 1779 to 1826 * Fort Shelby (Wisconsin), an American military installation built in 1814 and destroyed by the British in 1815 * Shelby County (other) * Shelby Township (other) Elsewhere * Mount Shelby, a mountain in Antar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minnesota
Minnesota () is a state in the upper midwestern region of the United States. It is the 12th largest U.S. state in area and the 22nd most populous, with over 5.75 million residents. Minnesota is home to western prairies, now given over to intensive agriculture; deciduous forests in the southeast, now partially cleared, farmed, and settled; and the less populated North Woods, used for mining, forestry, and recreation. Roughly a third of the state is covered in forests, and it is known as the "Land of 10,000 Lakes" for having over 14,000 bodies of fresh water of at least ten acres. More than 60% of Minnesotans live in the Minneapolis–Saint Paul metropolitan area, known as the "Twin Cities", the state's main political, economic, and cultural hub. With a population of about 3.7 million, the Twin Cities is the 16th largest metropolitan area in the U.S. Other minor metropolitan and micropolitan statistical areas in the state include Duluth, Mankato, Moorhead, Rochester, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cook County, Illinois
Cook County is the most populous county in the U.S. state of Illinois and the second-most-populous county in the United States, after Los Angeles County, California. More than 40% of all residents of Illinois live within Cook County. As of 2020, the population was 5,275,541. Its county seat is Chicago, the most populous city in Illinois and the third-most-populous city in the United States. Cook County was incorporated in 1831 and named for Daniel Pope Cook, an early Illinois statesman. It achieved its present boundaries in 1839. Within one hundred years, the county recorded explosive population growth going from a trading post village with a little over 600 residents to four million citizens, rivalling Paris by the Great Depression. During the first half of the 20th century it had the absolute majority of Illinois's population. There are more than 800 local governmental units and nearly 130 municipalities located wholly or partially within Cook County, the largest of whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Edison
Thomas Alva Edison (February 11, 1847October 18, 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 light bulb, have had a widespread impact on the modern 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 laboratory in Fort Myers, Florida, in co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomson-Houston Electric Company
The Thomson-Houston Electric Company was a manufacturing company which was one of the precursors of the General Electric company. History The Thomson-Houston Electric Company was formed in 1882 in the United States when a group of Lynn, Massachusetts investors led by Charles A. Coffin bought out Elihu Thomson and Edwin Houston's American Electric Company from their New Britain, Connecticut, investors. The company moved its operations to a new building on Western Ave. in Lynn, Massachusetts, because many of the investors were shoe manufacturers from Lynn. Elihu Thomson Papers at the American Philosophical Society Charles A. Coffin led the company and organized its finances, marketing, and sales operations. Elwin W. Rice organized the manufacturing facilities, and Elihu Thomson ran the Model Room which was a precursor to the industrial research lab. With their leadership, the company grew into an enterprise with sales of and 4000 employees by 1892. In 1884 Thomson-Houston I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incandescent Lamp
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows. The filament is enclosed in a glass bulb with a vacuum or inert gas to protect the filament from oxidation. Current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket provides mechanical support and electrical connections. Incandescent bulbs are manufactured in a wide range of sizes, light output, and voltage ratings, from 1.5 volts to about 300 volts. They require no external regulating equipment, have low manufacturing costs, and work equally well on either alternating current or direct current. As a result, the incandescent bulb became widely used in household and commercial lighting, for portable lighting such as table lamps, car headlamps, and flashlights, and for decorative and advertising lighting. Incandescent bulbs are much less efficient than other types of electric lighting, converting le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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