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Longest-lasting Light Bulbs
This is a list of the longest-lasting incandescent light bulbs. Longest-lasting light bulb The world's longest-lasting light bulb is the Centennial Light located at 4550 East Avenue, Livermore, California. It is maintained by the Livermore-Pleasanton Fire Department. The fire department claims that the bulb is at least 121 years old (installed 1901) and has only been turned off a handful of times. The bulb has been noted by ''The Guinness Book of World Records'', '' Ripley's Believe It or Not!'', and General Electric as being the world's longest-lasting light bulb. While it might seem astonishing that so many longest-lasting light bulbs have been so infrequently turned off, this is the precise reason for their longevity. Most of the wear and tear that leads to burnouts in incandescent light bulbs is caused by turning them on and off, not by burning them. Each time the bulb is turned on and off, the filament is heated and cooled. This causes the material of the filament to exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Bulb
An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic, which secures the lamp in the socket of a light fixture, which is often called a "lamp" as well. The electrical connection to the socket may be made with a screw-thread base, two metal pins, two metal caps or a bayonet cap. The three main categories of electric lights are incandescent lamps, which produce light by a filament heated white-hot by electric current, gas-discharge lamps, which produce light by means of an electric arc through a gas, such as fluorescent lamps, and LED lamps, which produce light by a flow of electrons across a band gap in a semiconductor. Before electric lighting became common in the early 20th century, people used candles, gas lights, oil lamps, and fires. Vasily Vladimirovich Petrov developed the first persistent electric arc in 1802, and ... [...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] |
Greer County, Oklahoma
Greer County is a county located along the southwest border of the U.S. state of Oklahoma. As of the 2010 census, the population was 6,239. Its county seat is Mangum. From 1860 to 1896, the state of Texas claimed an area known as Greer County, Texas, which included present-day Greer County along with neighboring areas. In 1896 it was designated as a county in Oklahoma Territory under a ruling by the US Supreme Court. The rural Greer County is home to Quartz Mountain State Park, near the community of Lone Wolf, Oklahoma. It is also home to the Oklahoma State Reformatory, located in Granite. Its population has declined since 1930 due to changes in agriculture and migration to cities for work. History After a dispute over the 1819 Adams-Onís Treaty and the related 1828 Treaty of Limits, the governments of both the United States and the state of Texas claimed ownership of some 1.5 million acres (6,000 km2) in what was then operated as Greer County, Texas. The county was na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of New York City
The written history of New York City began with the first European explorer, the Italian Giovanni da Verrazzano in 1524. European settlement began with the Dutch in 1608. The "Sons of Liberty" campaigned against British authority in New York City, and the Stamp Act Congress of representatives from throughout the Thirteen Colonies met in the city in 1765 to organize resistance to Crown policies. The city's strategic location and status as a major seaport made it the prime target for British seizure in 1776. General George Washington lost a series of battles from which he narrowly escaped (with the notable exception of the Battle of Harlem Heights, his first victory of the war), and the British Army occupied New York and made it their base on the continent until late 1783, attracting Loyalist refugees. The city served as the national capital under the Articles of Confederation from 1785 to 1789, and briefly served as the new nation's capital in 1789–90 under the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culture Of Fort Worth, Texas
Culture () is an umbrella term which encompasses the social behavior, institutions, and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups.Tylor, Edward. (1871). Primitive Culture. Vol 1. New York: J.P. Putnam's Son Culture is often originated from or attributed to a specific region or location. Humans acquire culture through the learning processes of enculturation and socialization, which is shown by the diversity of cultures across societies. A cultural norm codifies acceptable conduct in society; it serves as a guideline for behavior, dress, language, and demeanor in a situation, which serves as a template for expectations in a social group. Accepting only a monoculture in a social group can bear risks, just as a single species can wither in the face of environmental change, for lack of functional responses to the change. Thus in military culture, valor is counted a typical be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incandescent Light Bulbs
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 less ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snopes
''Snopes'' , formerly known as the ''Urban Legends Reference Pages'', is a Fact checking, fact-checking website. It has been described as a "well-regarded reference for sorting out myths and rumors" on the Internet. The site has also been seen as a source for both validating and Debunker, debunking urban legends and similar stories in Culture of the United States, American popular culture. History 1990s In 1994, David and Barbara Mikkelson created an urban folklore web site that would become ''Snopes.com''. ''Snopes'' was an early online encyclopedia focused on urban legends, which mainly presented search results of user discussions. The site grew to encompass a wide range of subjects and became a resource to which Internet users began submitting pictures and stories of questionable veracity. According to the Mikkelsons, ''Snopes'' predated the search engine concept of fact-checking via search results. David Mikkelson had originally adopted the username "Snopes" (the name o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sanctuary Lamp
file:Malta - Mosta - Rotunda in 57 ies.jpg, Malta - Mosta - Rotunda in 57 ies. A sanctuary lamp, chancel lamp, altar lamp, everlasting light, or eternal flame is a light that shines before the altar of sanctuaries in many Jewish and Christianity, Christian places of worship. Prescribed in Book of Exodus, Exodus 27:20-21 of the Torah, this icon has taken on different meanings in each of the religions that have adopted it. The passage, which refers to prescriptions for the tabernacle, states: In Jewish tradition In Judaism, the sanctuary lamp is known by its Hebrew name, Ner Tamid (Hebrew: "eternal flame" or "eternal light"). Hanging or standing in front of the ark (synagogue), ark in every Jewish synagogue, it is meant to represent the Menorah (Temple), menorah of the Temple in Jerusalem as well as the continuously burning fire on the altar of burnt offerings in front of the Temple. It also symbolizes God's eternal presence and is therefore never extinguished. It is also inten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phoebus Cartel
The Phoebus cartel was an oligopoly that controlled the manufacture and sale of incandescent light bulbs. They appropriated market territories and lowered the useful life of such bulbs. Corporations based in Europe and the United States founded the cartel on January 15, 1925 in Geneva. Phoebus based itself in Switzerland. The corporation named itself ''Phœbus S.A. Compagnie Industrielle pour le Développement de l'Éclairage'' (French for "Phoebus plc Industrial Company for the Development of Lighting"). They had intended the cartel to last for thirty years (1925 to 1955). The cartel ceased operations in 1939 owing to the outbreak of World War II. The cartel included manufacturers Osram, General Electric, Associated Electrical Industries, and Philips, among others. History Osram, Philips, Tungsram, Associated Electrical Industries, , Compagnie des Lampes, International General Electric, and the GE Overseas Group created and joined the Phoebus cartel, holding shares in the Swis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eternal Flame
An eternal flame is a flame, lamp or torch that burns for an indefinite time. Most eternal flames are ignited and tended intentionally, but some are natural phenomena caused by natural gas leaks, peat fires and coal seam fires, all of which can be initially ignited by lightning, piezoelectricity or human activity, some of which have burned for hundreds or thousands of years. In ancient times, eternal flames were fueled by wood or olive oil; modern examples usually use a piped supply of propane or natural gas. Human-created eternal flames most often commemorate a person or event of national significance, serve as a symbol of an enduring nature such as a religious belief, or a reminder of commitment to a common goal, such as diplomacy. Religious and cultural significance The eternal fire is a long-standing tradition in many cultures and religions. In ancient Iran the ''atar'' was tended by a dedicated priest and represented the concept of "divine sparks" or ''Amesha Spenta,'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Menlo Park, New Jersey
Menlo Park is an unincorporated community located within Edison Township in Middlesex County, New Jersey, United States. In 1876, Thomas Edison set up his home and research laboratory in Menlo Park, which at the time was the site of an unsuccessful real estate development named after the town of Menlo Park, California. While there, he earned the nickname "the Wizard of Menlo Park".Walsh, Bryan"The Electrifying Edison" Web: ''Time'' 5 Jul 2010. The Menlo Park lab was significant in that it was one of the first laboratories to pursue practical, commercial applications of research. It was in his Menlo Park laboratory that Thomas Edison invented the phonograph and developed a commercially viable incandescent light bulb filament. Christie Street in Menlo Park was one of the first streets in the world to use electric lights for illumination. Edison left Menlo Park and moved his home and laboratory to West Orange, New Jersey in 1887. After his death, the Thomas Alva Edison Memorial To ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
