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John Kenneth Hilliard
John Kenneth Hilliard (October 1901 – March 21, 1989) was an American acoustical and electrical engineer who pioneered a number of important loudspeaker concepts and designs. He helped develop the practical use of recording sound for film, and won an Academy Award in 1935. He designed movie theater sound systems, and he worked on radar as well as submarine detection equipment during World War II. Hilliard collaborated with James B. "Jim" Lansing in creating the long-lived Altec Voice of the Theatre speaker system. Hilliard researched high-intensity acoustics, vibration, miniaturization and long-line communications for NASA and the Air Force. Near the end of his career, he standardized noise-control criteria for home construction in California, a pattern since applied to new homes throughout the U.S. Education Born in October 1901 in Wyndmere, North Dakota, Hilliard received his B.S. degree from Hamline University in St. Paul, Minnesota at 24 years of age. He then obtained a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wyndmere, North Dakota
Wyndmere ( ) is a city in Richland County, North Dakota, United States. The population was 454 at the 2020 census. Wyndmere was founded in 1883 and named after Windermere in England. It is part of the Wahpeton, ND– MN Micropolitan Statistical Area. Geography Wyndmere is located at (46.264182, -97.131413). According to the United States Census Bureau, the city has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 429 people, 192 households, and 117 families living in the city. The population density was . There were 226 housing units at an average density of . The racial makeup of the city was 95.6% White, 0.2% Native American, 0.2% Asian, 2.6% from other races, and 1.4% from two or more races. Hispanic or Latino of any race were 6.1% of the population. There were 192 households, of which 27.1% had children under the age of 18 living with them, 52.6% were married couples living together, 4.2% had a female householder with no hus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sound Film
A sound film is a motion picture with synchronized sound, or sound technologically coupled to image, as opposed to a silent film. The first known public exhibition of projected sound films took place in Paris in 1900, but decades passed before sound motion pictures became commercially practical. Reliable synchronization was difficult to achieve with the early sound-on-disc systems, and amplification and recording quality were also inadequate. Innovations in sound-on-film led to the first commercial screening of short motion pictures using the technology, which took place in 1923. The primary steps in the commercialization of sound cinema were taken in the mid-to-late 1920s. At first, the sound films which included synchronized dialogue, known as "talking pictures", or "talkies", were exclusively shorts. The earliest feature-length movies with recorded sound included only music and effects. The first feature film originally presented as a talkie (although it had only limited so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine Warfare
Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations are typically carried out to protect friendly shipping and coastal facilities from submarine attacks and to overcome blockades. Successful ASW operations typically involved a combination of sensor and weapon technologies, along with effective deployment strategies and sufficiently trained personnel. Typically, sophisticated sonar equipment is used for first detecting, then classifying, locating, and tracking a target submarine. Sensors are therefore a key element of ASW. Common weapons for attacking submarines include torpedoes and naval mines, which can both be launched from an array of air, surface, and underwater platforms. ASW capabilities are often considered of significant strategic importance, particularly following provocative instan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Anomaly Detector
A magnetic anomaly detector (MAD) is an instrument used to detect minute variations in the Earth's magnetic field. The term refers specifically to magnetometers used by military forces to detect submarines (a mass of ferromagnetic material creates a detectable disturbance in the magnetic field); military MAD equipment is a descendant of geomagnetic survey or aeromagnetic survey instruments used to search for minerals by detecting their disturbance of the normal earth-field. History Geoexploration by measuring and studying variations in the Earth's magnetic field has been conducted by scientists since 1843. The first uses of magnetometers were for the location of ore deposits. Thalen's "The Examination of Iron Ore Deposits by Magnetic Measurements", published in 1879, was the first scientific treatise describing this practical use. Magnetic anomaly detectors employed to detect submarines during World War II harnessed the fluxgate magnetometer, an inexpensive and easy to use t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge, Massachusetts
Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, Worcester, and Springfield. It is one of two de jure county seats of Middlesex County, although the county's executive government was abolished in 1997. Situated directly north of Boston, across the Charles River, it was named in honor of the University of Cambridge in England, once also an important center of the Puritan theology embraced by the town's founders. Harvard University, the Massachusetts Institute of Technology (MIT), Lesley University, and Hult International Business School are in Cambridge, as was Radcliffe College before it merged with Harvard. Kendall Square in Cambridge has been called "the most innovative square mile on the planet" owing to the high concentration of successful startups that have emerged in the vicinity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Massachusetts Institute Of Technology
The Massachusetts Institute of Technology (MIT) is a private land-grant research university in Cambridge, Massachusetts. Established in 1861, MIT has played a key role in the development of modern technology and science, and is one of the most prestigious and highly ranked academic institutions in the world. Founded in response to the increasing industrialization of the United States, MIT adopted a European polytechnic university model and stressed laboratory instruction in applied science and engineering. MIT is one of three private land grant universities in the United States, the others being Cornell University and Tuskegee University. The institute has an urban campus that extends more than a mile (1.6 km) alongside the Charles River, and encompasses a number of major off-campus facilities such as the MIT Lincoln Laboratory, the Bates Center, and the Haystack Observatory, as well as affiliated laboratories such as the Broad and Whitehead Institutes. , 98 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academy Of Motion Picture Arts And Sciences
The Academy of Motion Picture Arts and Sciences (AMPAS, often pronounced ; also known as simply the Academy or the Motion Picture Academy) is a professional honorary organization with the stated goal of advancing the arts and sciences of motion pictures. The Academy's corporate management and general policies are overseen by a board of governors, which includes representatives from each of the craft branches. As of April 2020, the organization was estimated to consist of around 9,921 motion picture professionals. The Academy is an international organization and membership is open to qualified filmmakers around the world. The Academy is known around the world for its annual Academy Awards, now officially and popularly known as "The Oscars". In addition, the Academy holds the Governors Awards annually for lifetime achievement in film; presents Scientific and Technical Awards annually; gives Student Academy Awards annually to filmmakers at the undergraduate and graduate level; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norma Shearer
Edith Norma Shearer (August 11, 1902June 12, 1983) was a Canadian-American actress who was active on film from 1919 through 1942. Shearer often played spunky, sexually liberated ingénues. She appeared in adaptations of Noël Coward, Eugene O'Neill, and William Shakespeare, and was the first five-time Academy Award acting nominee, winning Best Actress for ''The Divorcee'' (1930). Reviewing Shearer's work, Mick LaSalle called her "the exemplar of sophisticated 1930s womanhood ... exploring love and sex with an honesty that would be considered frank by modern standards". He described her as a feminist pioneer, "the first American film actress to make it chic and acceptable to be single and not a virgin on screen". Early life Shearer was of Scottish, English, and Irish descent. Her childhood was spent in Montreal, where she was educated at Montreal High School for Girls and Westmount High School. Her life was one of privilege, due to the success of her father's construction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Shearer
Douglas Graham Shearer (November 17, 1899 – January 5, 1971) was a Canadian American pioneering sound designer and recording director who played a key role in the advancement of sound technology for motion pictures. The elder brother of actress Norma Shearer, he won seven Academy Awards for his work. In 2008, he was inducted into Canada's Walk of Fame. Early life and career Shearer was born in Westmount, Quebec, to a prominent family that fell on hard times after his father's business failed, which ultimately led to his parents' separation. Douglas remained with his father Andrew in Montreal while his two younger sisters, Norma Shearer (the Metro-Goldwyn-Mayer star) and Athole Shearer (also a Hollywood actress and one-time wife of director Howard Hawks), moved to the United States—to New York City—with their mother, Edith. Unable to afford a university education, Douglas Shearer left school and began working in a variety of jobs. In 1924, he traveled to Hollywood, Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Depression
The Great Depression (19291939) was an economic shock that impacted most countries across the world. It was a period of economic depression that became evident after a major fall in stock prices in the United States. The economic contagion began around September and led to the Wall Street stock market crash of October 24 (Black Thursday). It was the longest, deepest, and most widespread depression of the 20th century. Between 1929 and 1932, worldwide gross domestic product (GDP) fell by an estimated 15%. By comparison, worldwide GDP fell by less than 1% from 2008 to 2009 during the Great Recession. Some economies started to recover by the mid-1930s. However, in many countries, the negative effects of the Great Depression lasted until the beginning of World War II. Devastating effects were seen in both rich and poor countries with falling personal income, prices, tax revenues, and profits. International trade fell by more than 50%, unemployment in the U.S. rose to 23% and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XLR Connector
The XLR connector is a type of electrical connector primarily used in professional audio, video, and stage lighting equipment. XLR connectors are cylindical in design, and have three to seven connector pins, and are often employed for analog balanced audio interconnections, AES3 digital audio, portable intercom, DMX512 lighting control, and for low-voltage power supply. XLR connectors are included to the international standard for dimensions, IEC 61076-2-103. The XLR connector is superficially similar to the smaller DIN connector, with which it is physically incompatible. History and manufacturers The XLR connector (also Cannon plug and Cannon connector) was invented by James H. Cannon, founder of the Cannon Electric company, Los Angeles, California. The XLR connector originated from the ''Cannon X'' series of connectors in 1915; by 1950, a latching mechanism was added to the connector, which produced the ''Cannon XL'' model of connector, and by 1955, the female connector ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cannon (ITT Corporation)
ITT Interconnect Solutions, a division of ITT Inc., is a globally diversified connector and connector assembly manufacturing company. Founded in 1915 as Cannon by James H. Cannon, the company developed some of the first equipment for sound films in the early years of the movie industry, including a synchronous motor drive to remotely operate a motion picture projector together with a phonograph. The first "Cannon plug", the M-1 connector, was initially designed as a quick grounding connection for the electrical motor on a portable meat grinder and was adapted for movie sound equipment, enabling the new electrical camera to move freely about while “shooting” a scene. Cannon's M-1 connector was incorporated into the sound equipment used to make the first "talking" motion picture, ''The Jazz Singer''. Cannon continued to develop connectors for the entertainment industry, including the “P” Series audio connectors developed for Paramount Studios, as well as connectors used in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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