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Leonard Reiffel
Leonard Reiffel (September 30, 1927 – April 15, 2017) was an American physicist, author and educator. Born in Chicago, Reiffel was an electrical engineering student for a number of years before entering into research fields. He collaborated with Enrico Fermi, Carl Sagan, and members of Operation Paperclip. Reiffel also worked for NASA and the Illinois Institute of Technology, and won a Peabody Award for his work on the radio program ''The World Tomorrow''. His experience with broadcasting led him to invent the telestrator as a visual aid for his programming; Reiffel held over fifty different patents for his inventions. Early life Leonard Reiffel was born in Chicago on September 30, 1927. His father was Carl Reiffel, a silversmith credited with inventing a slide saxophone. His mother, the former Sophie Miller, was a district superintendent in the Chicago public school system. The younger Reiffel attended Theodore Roosevelt High School, before earning a bachelor's and maste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physics
Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. "Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railgun
A railgun or rail gun is a linear motor device, typically designed as a weapon, that uses Electromagnet, electromagnetic force to launch high velocity projectiles. The projectile normally does not contain explosives, instead relying on the projectile's high speed, mass, and kinetic energy to inflict damage. The railgun uses a pair of parallel conductors (rails), along which a sliding Armature (electrical engineering), armature is accelerated by the electromagnetic effects of a current that flows down one rail, into the armature and then back along the other rail. It is based on principles similar to those of the homopolar motor. As of 2020, railguns have been researched as weapons utilizing electromagnetic forces to impart a very high kinetic energy to a projectile (e.g. APFSDS) rather than using conventional propellants. While explosive-powered military guns cannot readily achieve a muzzle velocity of more than ≈, railguns can readily exceed . For a similar projectile, the ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermitage Museum
The State Hermitage Museum ( rus, Государственный Эрмитаж, r=Gosudarstvennyj Ermitaž, p=ɡəsʊˈdarstvʲɪn(ː)ɨj ɪrmʲɪˈtaʂ, links=no) is a museum of art and culture in Saint Petersburg, Russia. It is the list of largest art museums, largest art museum in the world by Art gallery, gallery space. It was founded in 1764 when Empress Catherine the Great acquired an impressive collection of paintings from the Berlin merchant Johann Ernst Gotzkowsky. The museum celebrates the anniversary of its founding each year on 7 December, Saint Catherine's Day. It has been open to the public since 1852. The ''Art Newspaper'' ranked the museum 6th in their list of the List of most visited art museums, most visited art museums, with 1,649,443 visitors in 2021. Its collections, of which only a small part is on permanent display, comprise over three million items (the numismatics, numismatic collection accounts for about one-third of them). The collections occupy a l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johnny Morris (American Football)
Johnny Edward Morris (born September 26, 1935) is a former American football halfback and wide receiver in the National Football League. He spent his entire ten-year career with the Chicago Bears, and is the franchise's all-time leader in receiving yards with 5,059. He attended the University of California, Santa Barbara. Morris won an NFL championship in 1963. In 1964, he had his best season with 93 receptions for 1,200 yards and 10 touchdowns. In 1964, while still playing for the Bears, Morris joined WBBM-TV in Chicago as a sportscaster. Except for a six-year stint at rival WMAQ-TV, Morris remained at WBBM until 1992, serving for most of that time as sports director. He became good friends with film critic Gene Siskel when Siskel was hired by the station in the 1970s. During his time at WBBM-TV, he popularised the use of the telestrator (a device for drawing over still or moving video images) in sports television, which was invented by fellow WBBM-TV employee Leonard Reiff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Coughlin (weatherman)
John Coughlin (September 3, 1925 – February 17, 2001) was a longtime meteorologist for WBBM-TV in Chicago, during the station's No. 1 position in the television news market in Chicago in the 1970s. Early life and education Born and raised in Chicago, Coughlin served two years of combat during World War II. He then earned a bachelor's degree in liberal arts from Northwestern University in 1952. Professional career Coughlin's first job was working for a small radio station in Alton, Illinois, where he lived in a dingy boarding house with the station's other disc jockeys. After about a year in Alton, Coughlin worked for a variety of radio stations in Chicago. He joined WBBM-TV in 1953, working mostly on children's programs. In 1969, Coughlin was pressed into service as a weatherman after one of the station's meteorologists, Roy Allred, took ill just before a broadcast. Later, after Allred quit, Coughlin was asked to become the station's interim meteorologist, even though by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WBBM-TV
WBBM-TV (channel 2) is a television station in Chicago, Illinois, United States, airing programming from the CBS network. Owned and operated by the network's CBS News and Stations division, the station maintains studios on West Washington Street in the Loop district, and its transmitter is located atop the Willis Tower. History Early history (1940–1953) WBBM-TV traces its history to 1940 when Balaban and Katz, a subsidiary of Paramount Pictures, signed on experimental station W9XBK, the first all-electronic television facility in Chicago. Balaban and Katz was already well known for owning several movie theaters in the Chicago area. In order to establish the station, the company hired television pioneer William C. "Bill" Eddy away from RCA's experimental station W2XBS in New York City. When World War II began, Eddy used the W9XBK facilities as a prototype school for training Navy electronics technicians. While operating the Navy school, Eddy continued to lead W9XBK and wrote ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Play From Scrimmage
A play from scrimmage is the sequence in the game of gridiron football during which one team tries to advance the ball, get a first Down (gridiron football), down, or score, and the other team tries to stop them or take the ball away. Once a play is over, and before the next American football plays, play starts, the football is considered dead ball (football), dead. A game of American football (or Canadian Football) consists of many (about 120–150) such plays. Specifications The term is also used to denote a specific plan of action, or its execution, under a particular set of circumstances faced by either team.Shields, Patricia and Rangarajan, Nandhini. 2013''A Playbook for Research Methods: Integrating Conceptual Frameworks and Project Management''Stillwater, OK: New Forums Press, p. 1. For instance, the offensive team may be faced with one or two down (football), downs left in a possession and still ten or more yards to go to earn a new set of downs. In this instance, they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Football
American football (referred to simply as football in the United States and Canada), also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team with possession of the oval-shaped football, attempts to advance down the field by running with the ball or passing it, while the defense, the team without possession of the ball, aims to stop the offense's advance and to take control of the ball for themselves. The offense must advance at least ten yards in four downs or plays; if they fail, they turn over the football to the defense, but if they succeed, they are given a new set of four downs to continue the drive. Points are scored primarily by advancing the ball into the opposing team's end zone for a touchdown or kicking the ball through the opponent's goalposts for a field goal. The team with the most points at the end of a game wins. American football evolved in the United States, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emmy Award
The Emmy Awards, or Emmys, are an extensive range of awards for artistic and technical merit for the American and international television industry. A number of annual Emmy Award ceremonies are held throughout the calendar year, each with their own set of rules and award categories. The two events that receive the most media coverage are the Primetime Emmy Awards and the Daytime Emmy Awards, which recognize outstanding work in American primetime and daytime entertainment programming, respectively. Other notable U.S. national Emmy events include the Children's & Family Emmy Awards for children's and family-oriented television programming, the Sports Emmy Awards for sports programming, News & Documentary Emmy Awards for news and documentary shows, and the Technology & Engineering Emmy Awards and the Primetime Engineering Emmy Awards for technological and engineering achievements. Regional Emmy Awards are also presented throughout the country at various times through the year, re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Defense
The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national security and the United States Armed Forces. The DoD is the largest employer in the world, with over 1.34 million active-duty service members (soldiers, marines, sailors, airmen, and guardians) as of June 2022. The DoD also maintains over 778,000 National Guard and reservists, and over 747,000 civilians bringing the total to over 2.87 million employees. Headquartered at the Pentagon in Arlington, Virginia, just outside Washington, D.C., the DoD's stated mission is to provide "the military forces needed to deter war and ensure our nation's security". The Department of Defense is headed by the secretary of defense, a cabinet-level head who reports directly to the president of the United States. Beneath the Department of Defense are th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Guardian
''The Guardian'' is a British daily newspaper. It was founded in 1821 as ''The Manchester Guardian'', and changed its name in 1959. Along with its sister papers ''The Observer'' and ''The Guardian Weekly'', ''The Guardian'' is part of the Guardian Media Group, owned by the Scott Trust. The trust was created in 1936 to "secure the financial and editorial independence of ''The Guardian'' in perpetuity and to safeguard the journalistic freedom and liberal values of ''The Guardian'' free from commercial or political interference". The trust was converted into a limited company in 2008, with a constitution written so as to maintain for ''The Guardian'' the same protections as were built into the structure of the Scott Trust by its creators. Profits are reinvested in journalism rather than distributed to owners or shareholders. It is considered a newspaper of record in the UK. The editor-in-chief Katharine Viner succeeded Alan Rusbridger in 2015. Since 2018, the paper's main news ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerard Kuiper
Gerard Peter Kuiper (; ; born Gerrit Pieter Kuiper; 7 December 1905 – 23 December 1973) was a Dutch astronomer, planetary scientist, selenographer, author and professor. He is the eponymous namesake of the Kuiper belt. Kuiper is considered by many to be the father of modern planetary science. Early life and career Kuiper, the son of a tailor in the village of Tuitjenhorn in North Holland, had an early interest in astronomy. He had extraordinarily sharp eyesight, allowing him to see with the naked eye magnitude 7.5 stars, about four times fainter than those visible to normal eyes. He studied at Leiden University in 1924, where at the time a very large number of astronomers had congregated. He befriended fellow students Bart Bok and Pieter Oosterhoff, and was taught by Ejnar Hertzsprung, Antonie Pannekoek, Willem de Sitter, Jan Woltjer, Jan Oort, and the physicist Paul Ehrenfest. He received his candidate degree in Astronomy in 1927 and continued straight on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
