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James B. Lansing
James Bullough Lansing (born James Martini, January 2, 1902 – September 29, 1949) was a pioneering American audio engineer and loudspeaker designer who was most notable for establishing two audio companies that bear his name, Altec Lansing and JBL, the latter taken from his initials, JBL. Biography Early years James Martini was born on January 2, 1902, in Greenridge, Nilwood Township, Macoupin County, Illinois to parents Henry Martini of St. Louis, Missouri, and Grace Erbs Martini of Central City, Illinois. His father was a coal mining engineer which meant the family moved around considerably in James' early years. He was the ninth of fourteen children. He lived for a short time with the Bullough family in Springfield, Illinois, and later took their name.Audioheritage.comFounding JBL] Lansing graduated eighth grade at Lawrence School in Springfield, Illinois, attended Springfield High School (Illinois), Springfield High School and also took courses at a small business co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nilwood Township, Macoupin County, Illinois
Nilwood Township (T11N R6W) is located in Macoupin County, Illinois, Macoupin County, Illinois, United States. As of the 2010 census, its population was 637 and it contained 293 housing units. Geography According to the 2010 census, the township has a total area of , all land. Demographics Adjacent townships * Girard Township, Macoupin County, Illinois, Girard Township (north) * Bois D'Arc Township, Montgomery County, Illinois, Bois D'Arc Township, Montgomery County (northeast) * Pitman Township, Montgomery County, Illinois, Pitman Township, Montgomery County (east) * Zanesville Township, Montgomery County, Illinois, Zanesville Township, Montgomery County (southeast) * Shaws Point Township, Macoupin County, Illinois, Shaws Point Township (south) * Carlinville Township, Macoupin County, Illinois, Carlinville Township (southwest) * South Otter Township, Macoupin County, Illinois, South Otter Township (west) * North Otter Township, Macoupin County, Illinois, North Otter Township (n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Station Great Lakes
Naval Station Great Lakes (NAVSTA Great Lakes) is the home of the United States Navy's only recruit training, boot camp, located near North Chicago, Illinois, North Chicago, in Lake County, Illinois. Important tenant commands include the Recruit Training Command, Training Support Center and Navy Recruiting District Chicago. Naval Station Great Lakes is the largest military installation in Illinois and the largest training station in the Navy. The base has 1,153 buildings situated on and has of roadway to provide access to the base's facilities. Within the naval service, it has several different nicknames, including "The Quarterdeck of the Navy", or the more derogatory "Great Mistakes". It is also referred to as "second boot camp" while at Training Support Command. The original 39 buildings built between 1905 and 1911 were designed by Jarvis Hunt. The base functions similarly to a small city, with its own fire department, Naval Security Forces (Police), and public works departme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Acoustical Engineers
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1949 Suicides
Events January * January 1 – A United Nations-sponsored ceasefire brings an end to the Indo-Pakistani War of 1947. The war results in a stalemate and the division of Kashmir, which still continues as of 2022. * January 2 – Luis Muñoz Marín becomes the first democratically elected Governor of Puerto Rico. * January 11 – The first "networked" television broadcasts take place, as KDKA-TV in Pittsburgh, Pennsylvania goes on the air, connecting east coast and mid-west programming in the United States. * January 16 – Şemsettin Günaltay forms the new government of Turkey. It is the 18th government, last single party government of the Republican People's Party. * January 17 – The first VW Type 1 to arrive in the United States, a 1948 model, is brought to New York by Dutch businessman Ben Pon. Unable to interest dealers or importers in the Volkswagen, Pon sells the sample car to pay his travel expenses. Only two 1949 models are sold in America that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1902 Births
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album '' Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipkn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loudspeaker
A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. A ''speaker system'', also often simply referred to as a "speaker" or "loudspeaker", comprises one or more such speaker ''drivers'', an enclosure, and electrical connections possibly including a crossover network. The speaker driver can be viewed as a linear motor attached to a diaphragm which couples that motor's movement to motion of air, that is, sound. An audio signal, typically from a microphone, recording, or radio broadcast, is amplified electronically to a power level capable of driving that motor in order to reproduce the sound corresponding to the original unamplified electronic signal. This is thus the opposite function to the microphone; indeed the ''dynamic speaker'' driver, by far the most common type, is a linear motor in the same basic configuration as the dynamic microphone which uses such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Angeles
Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world's most populous megacities. Los Angeles is the commercial, financial, and cultural center of Southern California. With a population of roughly 3.9 million residents within the city limits , Los Angeles is known for its Mediterranean climate, ethnic and cultural diversity, being the home of the Hollywood film industry, and its sprawling metropolitan area. The city of Los Angeles lies in a basin in Southern California adjacent to the Pacific Ocean in the west and extending through the Santa Monica Mountains and north into the San Fernando Valley, with the city bordering the San Gabriel Valley to it's east. It covers about , and is the county seat of Los Angeles County, which is the most populous county in the United States with an estim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nathaniel Baldwin
Nathaniel Baldwin (December 1, 1878 – January 19, 1961) was an American inventor and industrialist, known for his improved telephonic earphone, among other inventions. He was also a supporter of the early Mormon fundamentalist movement. Biography Nathaniel Baldwin was born in Fillmore, Millard County, Utah to Nathaniel B. Baldwin, a native of Ontario, Canada, and Margaret Oler, a native of Philadelphia. Baldwin's family were members of the Church of Jesus Christ of Latter-day Saints (LDS Church) and his mother was his father's second polygamous wife. As a child, he was interested in technology and built his own bicycle and steam engine. Teaching Baldwin studied at Brigham Young Academy (BYA), Utah State Agricultural College, and then Stanford University, receiving a degree in electrical engineering. He then returned to BYA to teach physics and theology and remained after its name changed to Brigham Young University (BYU). Though the LDS Church had officially disconti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt Lake City
Salt Lake City (often shortened to Salt Lake and abbreviated as SLC) is the Capital (political), capital and List of cities and towns in Utah, most populous city of Utah, United States. It is the county seat, seat of Salt Lake County, Utah, Salt Lake County, the most populous county in Utah. With a population of 200,133 in 2020, the city is the core of the Salt Lake City metropolitan area, which had a population of 1,257,936 at the 2020 census. Salt Lake City is further situated within a larger metropolis known as the Salt Lake City–Provo–Orem Combined Statistical Area, Salt Lake City–Ogden–Provo Combined Statistical Area, a corridor of contiguous urban and suburban development stretched along a segment of the Wasatch Front, comprising a population of 2,746,164 (as of 2021 estimates), making it the 22nd largest in the nation. It is also the central core of the larger of only two major urban areas located within the Great Basin (the other being Reno, Nevada). Salt Lake C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detroit
Detroit ( , ; , ) is the largest city in the U.S. state of Michigan. It is also the largest U.S. city on the United States–Canada border, and the seat of government of Wayne County. The City of Detroit had a population of 639,111 at the 2020 census, making it the 27th-most populous city in the United States. The metropolitan area, known as Metro Detroit, is home to 4.3 million people, making it the second-largest in the Midwest after the Chicago metropolitan area, and the 14th-largest in the United States. Regarded as a major cultural center, Detroit is known for its contributions to music, art, architecture and design, in addition to its historical automotive background. ''Time'' named Detroit as one of the fifty World's Greatest Places of 2022 to explore. Detroit is a major port on the Detroit River, one of the four major straits that connect the Great Lakes system to the Saint Lawrence Seaway. The City of Detroit anchors the second-largest regional economy in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystal Set
A crystal radio receiver, also called a crystal set, is a simple radio receiver, popular in the early days of radio. It uses only the power of the received radio signal to produce sound, needing no external power. It is named for its most important component, a crystal detector, originally made from a piece of crystalline mineral such as galena. This component is now called a diode. Crystal radios are the simplest type of radio receiver and can be made with a few inexpensive parts, such as a wire for an antenna, a coil of wire, a capacitor, a crystal detector, and earphones (because a crystal set has insufficient power for a loudspeaker). However they are passive receivers, while other radios use an amplifier powered by current from a battery or wall outlet to make the radio signal louder. Thus, crystal sets produce rather weak sound and must be listened to with sensitive earphones, and can receive stations only within a limited range of the transmitter. The rectifying prop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
