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Rudy Bozak
Rudolph Thomas Bozak (1910–1982) was an audio electronics and acoustics designer and engineer in the field of sound reproduction. His parents were Bohemian Czech immigrants; Rudy was born in Uniontown, Pennsylvania. Bozak studied at Milwaukee School of Engineering; in 1981, the school awarded him an honorary doctorate in engineering. Bozak married Lillian Gilleski; the two had three daughters: Lillian, Mary and Barbara. Loudspeakers Fresh out of college in 1933, Rudy Bozak began working for Allen-Bradley, an electronics manufacturer based in Milwaukee, Wisconsin. Bozak would later employ Allen-Bradley components in his own electronic designs. Bozak moved to the East Coast in 1935 to work for Cinaudagraph out of Stamford, Connecticut. Two years later he was chief engineer. At the 1939 New York World's Fair, a tower topped with a cluster of eight 27" Cinaudagraph loudspeakers in 30" frames with huge 450 lb. field coil magnets covered low frequency duties for a 2-way PA s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uniontown, Pennsylvania
Uniontown is the largest city in Fayette County, Pennsylvania, United States, and its county seat. The population was 9,984 at the 2020 census. It is part of the Pittsburgh metropolitan area, southeast of Pittsburgh. History southeast of Uniontown is Fort Necessity, built by George Washington during the French and Indian War (part of the international Seven Years' War) as well as the site of the Battle of Jumonville Glen, where the North American branch of the war began. Uniontown lies within the foothills of the Allegheny Mountains at an elevation of 999 feet (304 meters) above sea level. The city rests at the base of Chestnut Ridge, the westernmost ridge of the Appalachian Mountains. Founded in 1776, Uniontown was known as "the Town of Union" by Henry Beeson, a Quaker born in Virginia in 1743 who had settled in the area in 1768, buying tracts of land and running a sawmill. On July 4 (coincidentally, the same day the United States Declaration of Independence was adopte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tympani
Timpani (; ) or kettledrums (also informally called timps) are musical instruments in the percussion family. A type of drum categorised as a hemispherical drum, they consist of a membrane called a head stretched over a large bowl traditionally made of copper. Thus timpani are an example of kettledrums, also known as vessel drums and semispherical drums, whose body is similar to a section of a sphere whose cut conforms the head. Most modern timpani are ''pedal timpani'' and can be tuned quickly and accurately to specific pitches by skilled players through the use of a movable foot-pedal. They are played by striking the head with a specialized beater called a ''timpani stick'' or ''timpani mallet''. Timpani evolved from military drums to become a staple of the classical orchestra by the last third of the 18th century. Today, they are used in many types of ensembles, including concert bands, marching bands, orchestras, and even in some rock bands. ''Timpani'' is an Italian plu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acoustic Suspension
Acoustic suspension is a loudspeaker cabinet design that uses one or more loudspeaker drivers mounted in a sealed box. Acoustic suspension systems reduce bass distortion which can be caused by stiff suspensions required on drivers used for open cabinet designs. A compact acoustic suspension loudspeaker was described in 1954 by Edgar Villchur, and it was brought to commercial production by Villchur and Henry Kloss with the founding of Acoustic Research in Cambridge, Massachusetts. In 1960, Villchur reiterated that: ''The first aim of the acoustic suspension design, over and above uniformity of frequency response, compactness, and extension of response into the low-bass range, is to reduce significantly the level of bass distortion that had previously been tolerated in loudspeakers. This is accomplished by substituting an air-spring for a mechanical one.'' Subsequently, the theory of closed-box loudspeakers was extensively described by Richard H. Small. Speaker cabinets with acou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark VII Productions
Mark VII Limited (formerly Mark VII Productions, pronounced "Mark 7") was the production company of actor and filmmaker Jack Webb, and was active from 1951 until his death in 1982. Many of its series were produced in association with Universal Television; most of them were originally broadcast on the NBC television network in the United States. In 1962, Webb had signed a deal with Warner Bros. in order to produce motion pictures and television shows as an independent producer. Webb was employed by Warner Bros. Television in 1963, and as a result, he attempted to absorb the company. After failing, he resurrected the company, with ''Selena Mead'' as its first project, but it was never materialized, and he joined Universal Television, where he stayed for the next 12 years in order to produce television shows. In 1977, he quit Universal and set up the company independently, with a distribution agreement with Worldvision Enterprises and maintains an office at Samuel Goldwyn Studios. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jack Webb
John Randolph Webb (April 2, 1920 – December 23, 1982) was an American actor, television producer, Television director, director, and screenwriter, most famous for his role as Joe Friday in the Dragnet (franchise), ''Dragnet'' franchise, which he created. He was also the founder of his own production company, Mark VII Limited. Webb started his career in the 1940s as a radio personality, starring in several Radio program, radio shows and Radio drama, dramas—including ''Dragnet'', which he created in 1949—before entering television in the 1950s, creating the television adaptation of ''Dragnet'' for NBC as well as other series. Throughout the 1960s, Webb worked in both acting and television production, creating ''Adam-12'' in 1968, and in 1970, Webb retired from acting to focus on producing, creating ''Emergency!'' in 1972. Webb continued to make television series, and although many of them were less successful and short-lived, he wished to rekindle his prior successes, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benny Goodman
Benjamin David Goodman (May 30, 1909 – June 13, 1986) was an American clarinetist and bandleader, known as the "King of Swing". His orchestra did well commercially. From 1936 until the mid-1940s, Goodman led one of the most popular swing big bands in the United States. His concert at Carnegie Hall in New York City on January 16, 1938, is described by critic Bruce Eder as "the single most important jazz or popular music concert in history: jazz's 'coming out' party to the world of 'respectable' music." Goodman's bands started the careers of many jazz musicians. During an era of racial segregation, he led one of the first integrated jazz groups, his trio and quartet. He continued performing until the end of his life while pursuing an interest in classical music. Early years Goodman was the ninth of twelve children born to poor Jewish emigrants from the Russian Empire. His father, David Goodman, came to the United States in 1892 from Warsaw in partitioned Poland and becam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Mancini
Henry Mancini ( ; born Enrico Nicola Mancini; April 16, 1924 – June 14, 1994) was an American composer, conductor, arranger, pianist and flutist. Often cited as one of the greatest composers in the history of film, he won four Academy Awards, a Golden Globe, and twenty Grammy Awards, plus a posthumous Grammy Lifetime Achievement Award in 1995. His works include the theme and soundtrack for the ''Peter Gunn'' television series as well as the music for ''The Pink Panther'' film series (" The Pink Panther Theme") and " Moon River" from '' Breakfast at Tiffany's''. '' The Music from Peter Gunn'' won the inaugural Grammy Award for Album of the Year. Mancini enjoyed a long collaboration in composing film scores for the film director Blake Edwards. Mancini also scored a No. 1 hit single during the rock era on the Hot 100: his arrangement and recording of the " Love Theme from ''Romeo and Juliet''" spent two weeks at the top, starting with the week ending June 28, 1969. Early lif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audiophile
An audiophile (from + ) is a person who is enthusiastic about high-fidelity sound reproduction. The audiophile seeks to achieve high sound quality in the audio reproduction of recorded music, typically in a quiet listening space in a room with good acoustics. Audiophile values may be applied at all stages of music reproduction—the initial audio recording, the production process, the storage of sound data, and the playback (usually in a home setting). In general, the values of an audiophile are seen to be antithetical to the growing popularity of more convenient but lower-quality music, especially lossy digital file types like MP3, lower-definition music streaming services, laptop or cell phone speakers, and low-cost headphones. The term '' high-end audio'' refers to playback equipment used by audiophiles, which may be bought at specialist shops and websites. High-end components include turntables, digital-to-analog converters, equalization devices, preamplifiers and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Fidelity
High fidelity (hi-fi or, rarely, HiFi) is the high-quality reproduction of sound. It is popular with audiophiles and home audio enthusiasts. Ideally, high-fidelity equipment has inaudible noise and distortion, and a flat (neutral, uncolored) frequency response within the human hearing range. High fidelity contrasts with the lower-quality " lo-fi" sound produced by inexpensive audio equipment, AM radio, or the inferior quality of sound reproduction that can be heard in recordings made until the late 1940s. History Bell Laboratories began experimenting with various recording techniques in the early 1930s. Performances by Leopold Stokowski and the Philadelphia Orchestra were recorded in 1931 and 1932 using telephone lines between the Academy of Music in Philadelphia and the Bell labs in New Jersey. Some multitrack recordings were made on optical sound film, which led to new advances used primarily by MGM (as early as 1937) and Twentieth Century Fox Film Corporation (as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damping Ratio
In physical systems, damping is the loss of energy of an oscillating system by dissipation. Damping is an influence within or upon an oscillatory system that has the effect of reducing or preventing its oscillation. Examples of damping include viscous damping in a fluid (see Viscosity, viscous Drag (physics), drag), Friction, surface friction, radiation, Electrical resistance and conductance, resistance in electronic oscillators, and absorption and scattering of light in optical oscillators. Damping not based on energy loss can be important in other oscillating systems such as those that occur in ecology, biological systems and Bicycle_and_motorcycle_dynamics#Lateral_motion_theory, bikes (ex. Suspension (mechanics)). Damping is not to be confused with friction, which is a type of dissipative force acting on a system. Friction can cause or be a factor of damping. Many systems exhibit oscillatory behavior when they are disturbed from their position of static equilibrium. A mass su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latex
Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latices are found in nature, but synthetic latices are common as well. In nature, latex is found as a wikt:milky, milky fluid, which is present in 10% of all flowering plants (angiosperms) and in some Mushroom, mushrooms (especially species of ''Lactarius''). It is a complex emulsion that coagulation, coagulates on exposure to air, consisting of proteins, alkaloids, starches, sugars, Vegetable oil, oils, tannins, resins, and Natural gum, gums. It is usually exuded after tissue injury. In most plants, latex is white, but some have yellow, orange, or scarlet latex. Since the 17th century, latex has been used as a term for the fluid substance in plants, deriving from the Latin word for "liquid". It serves mainly as Antipredator adaptation, defense against Herbivore, herbivores and Fungivore, fungivores.Taskirawati, I. and Tuno, N., 2016Fungal defense against mycophagy in milk caps ''Science Report Kanazaw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hicksville, New York
Hicksville is a hamlet and census-designated place (CDP) within the Town of Oyster Bay in Nassau County, on Long Island, in New York, United States. The CDP's population was 43,869 at the time of the 2020 census. History Hamlet namesake Valentine Hicks was the son-in-law of abolitionist and Quaker preacher Elias Hicks, and eventual president of the Long Island Rail Road. He bought land in the village in 1834 and turned it into a station stop on the LIRR in 1837. Hicksville was founded accidentally when a financial depression brought the LIRR to a stop at Broadway, Hicksville. The station slowly grew and though it started as a train station, it turned into a hotel then a real estate deal, even becoming a depot for produce, particularly cucumbers for a Heinz Company plant. After a blight destroyed the cucumber crops, the farmers grew potatoes. It turned into a bustling New York City suburb in the building boom following World War II.Ron Ziel and George H. Foster, Steel Rails t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
