|
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 a city in Fayette County, Pennsylvania, United States, southeast of Pittsburgh and part of the Greater Pittsburgh Region. The population was 10,372 at the 2010 census, down from 12,422 at the 2000 census. It is the county seat and largest city of Fayette County. History Uniontown was founded by Henry Beeson on July 4, 1776. This was, coincidentally, the same date the United States Declaration of Independence was adopted. The National Road, also known as the Cumberland Road, was routed through Uniontown in the early 19th century, and the town grew along with the road (now US 40). 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's role in the Underground Railroad in the antebellum years is commemorated by a marker on the corner of East Main Street and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tympani
Timpani (; ) or kettledrums (also informally called timps) are musical instruments in the percussion instrument, percussion family. A type of drum categorised as a hemispherical drum, they consist of a Membranophone, membrane called a drumhead, head stretched over a large bowl traditionally made of copper. Thus timpani are an example of kettle drums, 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 drum stick called a ''timpani stick'' or ''timpani mallet''. Timpani evolved from military drums to become a staple of the European classical music, classical orchestra by the last third of the 18th century. Today, they are used in many types of Musical ensemble, ensembles, including concert ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acoustic Suspension
Acoustic suspension (air suspension, closed box, sealed box) is a method of loudspeaker cabinet design and utilisation that uses one or more loudspeaker drivers mounted in a sealed box or cabinet. Acoustic suspension systems reduce bass distortion that can be caused by stiff motor suspensions in conventional loudspeakers. 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 extensive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark VII Productions
Mark VII Limited was the production company of actor and filmmaker Jack Webb, and was active from 1951 to his death in 1982. Many of its series were produced in association with Universal Television; most of them aired on the NBC television network in the U.S. Coincidentally, NBC and Universal are today part of the same company. The estate of Jack Webb now owns the full rights to the company's library, with the exception of the original 1954 feature film version of '' Dragnet'' (originally released by Warner Bros., but now owned by Universal Pictures), and the films '' Pete Kelly's Blues'' and '' The D.I.'' (which are controlled by original distributor Warner Bros.). However, Webb's three seminal series, '' Dragnet'' (the 1967–1970 incarnation), ''Emergency!,'' and ''Adam-12,'' are now available on DVD from either Universal or Shout! Factory, the first two under license from the Webb estate, the latter in-house since Universal was reassigned the ''Adam-12'' series copyrig ... [...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, director, and screenwriter, who is most famous for his role as Sgt. Joe Friday in the ''Dragnet'' franchise, which he created. He was also the founder of his own production company, Mark VII Limited. Early life Webb was born in Santa Monica, California, on April 2, 1920, son of Samuel Chester Webb and Margaret (née Smith) Webb. He grew up in the Bunker Hill section of Los Angeles. His father left home before Webb was born, and Webb never knew him. In the late 1920s and early 1930s, Webb lived in the parish of Our Lady of Loretto Church and attended Our Lady of Loretto Elementary School in Echo Park, where he served as an altar boy. He then attended Belmont High School, near downtown Los Angeles. Webb was elected student body president of his high school. He wrote to Belmont's student body in the 1938 edition of its yearbook, ''Campanile,'' "You who showed me the mag ... [...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". 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 quartet and quintet. He performed nearly to the end of his life while exploring 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 (1873–1926), came to the United States in 1892 from Warsaw in partitioned Poland and became a tailor. His mother, Dor ... [...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 flautist. 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. Earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audiophile
An audiophile is a person who is enthusiastic about high-fidelity sound reproduction. An audiophile seeks to reproduce the sound of a piece of recorded music or a live musical performance, typically inside closed headphones, In-ear monitors, open headphones in a quiet listening space, or a room with good acoustics. Audiophile values may be applied at all stages of music reproduction: the initial audio recording, the production process, and the playback, which is 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 streaming services, and inexpensive 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 amp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damping Ratio
Damping is an influence within or upon an oscillatory system that has the effect of reducing or preventing its oscillation. In physical systems, damping is produced by processes that dissipate the energy stored in the oscillation. Examples include viscous drag (a liquid's viscosity can hinder an oscillatory system, causing it to slow down; see viscous damping) in mechanical systems, 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 biological systems and bikes (ex. Suspension (mechanics)). Not to be confused with friction, which is a dissipative force acting on a system. Friction can cause or be a factor of damping. The damping ratio is a dimensionless measure describing how oscillations in a system decay after a disturbance. Many systems exhibit oscillatory behavior when they are disturbed from their position of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latex
Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latexes are found in nature, but synthetic latexes are common as well. In nature, latex is found as a milky fluid found in 10% of all flowering plants (angiosperms). It is a complex emulsion that coagulates on exposure to air, consisting of proteins, alkaloids, starches, sugars, oils, tannins, resins, and 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 defense against herbivorous insects. Latex is not to be confused with plant sap; it is a distinct substance, separately produced, and with different functions. The word latex is also used to refer to natural latex rubber, particularly non- vulcanized rubber. Such is the case in products like latex gloves, latex ... [...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. The population of the CDP was 41,547 at the 2010 census. History Valentine Hicks, son-in-law of abolitionist and Quaker preacher Elias Hicks, and eventual president of the Long Island Rail Road, bought land in the village in 1834 and turned it into a station stop on the LIRR in 1837. The station became 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 to the Sunrise, ©1965 The hamlet was named for Valentine Hicks. Failed incorporation attempt In 1953, Hicksville attempted to incorporate itself as the Incorporated Village of Hicksville. Many residents felt that by incorporating as a village, the community would be r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> Acoustic Suspension")
