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78 RPM
A phonograph record (also known as a gramophone record, especially in British English), or simply a record, is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove. The groove usually starts near the periphery and ends near the center of the disc. At first, the discs were commonly made from shellac, with earlier records having a fine abrasive filler mixed in. Starting in the 1940s polyvinyl chloride became common, hence the name vinyl. The phonograph record was the primary medium used for music reproduction throughout the 20th century. It had co-existed with the phonograph cylinder from the late 1880s and had effectively superseded it by around 1912. Records retained the largest market share even when new formats such as the compact cassette were mass-marketed. By the 1980s, digital media, in the form of the compact disc, had gained a larger market share, and the record left the mainstream in 1991. Since the 1990s, records cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1978
Events January * January 1 – Air India Flight 855, a Boeing 747 passenger jet, crashes off the coast of Bombay, killing 213. * January 5 – Bülent Ecevit, of CHP, forms the new government of Turkey (42nd government). * January 6 – The Holy Crown of Hungary (also known as Stephen of Hungary Crown) is returned to Hungary from the United States, where it was held since World War II. * January 10 – Pedro Joaquín Chamorro Cardenal, a critic of the Nicaraguan government, is assassinated; riots erupt against Somoza's government. * January 18 – The European Court of Human Rights finds the British government guilty of mistreating prisoners in Northern Ireland, but not guilty of torture. * January 22 – Ethiopia declares the ambassador of West Germany '' persona non grata''. * January 24 ** Soviet satellite Kosmos 954 burns up in Earth's atmosphere, scattering debris over Canada's Northwest Territories. ** Rose Dugdale and Eddie Gallagher become the first convi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The 78
The 78 is a development in Chicago that will consist of several office and residential towers, high-rises, and will also include a riverwalk. The name "The 78" refers to the existing 77 community areas in Chicago and the mega-development is to increase that number by one. Related Midwest will develop the site, and Skidmore, Owings & Merrill designed the project's master plan. Related Midwest acquired the land in 2016. The 78 development will be located on a 62-acre parcel of land just south of Downtown Chicago and north of Chinatown. The area is bordered by Roosevelt Road to the north, Clark Street to the east, 16th Street to the south, and the South Branch of the Chicago River to the west. The 78 will also include a $1.2 billion research center called the Discovery Partners Institute, which will be operated by the University of Illinois. In April 2019, the Chicago City Council approved The 78 development, including a tax increment financing agreement. Several other me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
78 (number)
78 (seventy-eight) is the natural number following 77 and followed by 79. In mathematics 78 is: *the dimension of the exceptional Lie group E6 and several related objects. *a sphenic number, having 3 distinct prime factors. *an abundant number with an aliquot sum of 90. *a semiperfect number, as a multiple of a perfect number. *the 12th triangular number. *a palindromic number in bases 5 (3035), 7 (1417), 12 (6612), 25 (3325), and 38 (2238). *a Harshad number in bases 3, 4, 5, 6, 7, 13 and 14. *an Erdős–Woods number, since it is possible to find sequences of 78 consecutive integers such that each inner member shares a factor with either the first or the last member. 77 and 78 form a Ruth-Aaron pair. In science *The atomic number of platinum. In other fields 78 is also: *In reference to gramophone records, 78 refers those meant to be spun at 78 revolutions per minute Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or with the notation min−1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AD 78
AD 78 ( LXXVIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Novius and Commodus (or, less frequently, year 831 ''Ab urbe condita''). The denomination AD 78 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * The Romans conquer the Ordovices, located in present-day northern Wales, as well as the Silures. * Gnaeus Julius Agricola replaces Sextus Julius Frontinus as governor of Roman Britain, which leads to the eventual taming of the Welsh tribes of Britain. Asia * Indian Prince Aji Caka introduces the Sanskrit language and Pallawa script, used to inscribe Javanese words and phrases, to the Indonesian islands. * Emperor Kadphises of the Kushan Empire sends a delegation to Rome, to seek support against the Parthians. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
78 BC
__NOTOC__ Year 78 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Lepidus and Catulus. Later and less frequently, it was known as the year 676 AUC). The denomination 78 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Republic * In Rome, Marcus Aemilius Lepidus becomes consul. He attempts to undermine the Sullan reforms, quarrels with his consular colleague, is sent to govern Transalpine Gaul, and initiates a rebellion against the Senate with his army there. * The Senate sends Publius Servilius Vatia to Cilicia as governor, where he fights a successful campaign against the Piracy in southern Anatolia (Lycia, Pamphylia and Isauria), he is thereafter known by the agnomen Isauricus. * The Tabularium is built in the Forum. * The Third Dalmatian war begins. Births * Jing Fang, Chines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2078
In contemporary history, the third millennium of the anno Domini or Common Era in the Gregorian calendar is the current millennium spanning the years 2001 to 3000 (21st to 30th centuries). Ongoing futures studies seek to understand what is likely to continue and what could plausibly change in the course of this period and beyond. Predictions and forecasts not included on this timeline * List of future astronomical events ** List of lunar eclipses in the 21st century ** List of solar eclipses in the 21st century * Projections of population growth * Climate change ** Representative Concentration Pathway ** Shared Socioeconomic Pathways * Extinction * List of dates predicted for apocalyptic events * Predictions and claims for the Second Coming * Near future in fiction * Works falling into the public domain in the United States 21st century 2000s * See: 2001 * 2002 * 2003 * 2004 * 2005 * 2006 * 2007 * 2008 * 2009 2010s * See: 2010 * 2011 * 2012 * 2013 * 2014 * 2015 * 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
