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Mark I
Mark I or Mark 1 often refers to the first version of a weapon or military vehicle, and is sometimes used in a similar fashion in civilian product development. In some instances, the Arabic numeral "1" is substituted for the Roman numeral "I". "Mark", meaning "model" or "variant", can itself be abbreviated "Mk." It may refer to: Military and weaponry *Mark I tank (1916), the first tank to be used in combat * Mk 1 grenade, the first American-designed grenade used by American forces in World War I *Mark I trench knife, a combat knife carried by US forces after World War I * Supermarine Spitfire Mk I (1938), Royal Air Force fighter aircraft * Mark I Fire Control Computer, United States Navy fire control computer used in World War II surface ships * Mark I Nuclear Weapon (Little Boy), first nuclear weapon used in combat *The Mark I NAAK, an auto-injector carried by military personnel for use in case of nerve agent attacks *Patrol Boat, River ("Mark I PBR", 1966), 31-foot version o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabic Numerals
The ten Arabic numerals (0, 1, 2, 3, 4, 5, 6, 7, 8, and 9) are the most commonly used symbols for writing numbers. The term often also implies a positional notation number with a decimal base, in particular when contrasted with Roman numerals. However the symbols are also used to write numbers in other bases, such as octal, as well as non-numerical information such as trademarks or license plate identifiers. They are also called Western Arabic numerals, Western digits, European digits, Ghubār numerals, or Hindu–Arabic numerals due to positional notation (but not these digits) originating in India. The ''Oxford English Dictionary'' uses lowercase ''Arabic numerals'' while using the fully capitalized term ''Arabic Numerals'' for Eastern Arabic numerals. In contemporary society, the terms ''digits'', ''numbers'', and ''numerals'' often implies only these symbols, although it can only be inferred from context. Europeans first learned of Arabic numerals , though their spread ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colossus Mark I
Colossus was a set of computers developed by British codebreakers in the years 1943–1945 to help in the cryptanalysis of the Lorenz cipher. Colossus used thermionic valves (vacuum tubes) to perform Boolean and counting operations. Colossus is thus regarded as the world's first programmable, electronic, digital computer, although it was programmed by switches and plugs and not by a stored program. Colossus was designed by General Post Office (GPO) research telephone engineer Tommy Flowers based on plans developed by mathematician Max Newman at the Government Code and Cypher School at Bletchley Park. Alan Turing's use of probability in cryptanalysis (see Banburismus) contributed to its design. It has sometimes been erroneously stated that Turing designed Colossus to aid the cryptanalysis of the Enigma. (Turing's machine that helped decode Enigma was the electromechanical Bombe, not Colossus.) The prototype, Colossus Mark 1, was shown to be working in December 1943 and w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Man's Armor
Iron Man's armor is a fictional powered exoskeleton appearing in American comic books published by Marvel Comics. It is built and worn by billionaire Tony Stark when he assumes the identity of the superhero Iron Man. The first armor was created in-story by Stark and Ho Yinsen, and was designed by artist Jack Kirby, first appearing in '' Tales of Suspense'' #39 (March 1963). In the fictional multiverse, the appearance of Stark's armor has changed over the years. Stark has modified or optimized the armor to adapt to specific situations. As various artists have depicted Iron Man and his armor, its appearance has changed over time. Overview Stark's suits are each unique in design and purpose. They are made of incredibly strong, fictional materials bolstered by a force field. Every suit has a self-contained environment, assorted onboard weapons systems, enhanced strength, thruster-aided flight, and various communications arrays and sensors, such as radar and radio. Creation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesa Boogie Mark Series
The Mesa/Boogie Mark Series is a series of guitar amplifier made by Mesa Boogie, Mesa Engineering (more commonly known as "Mesa/Boogie"). Originally just referred to as "Boogies", the product line took on the moniker "Mark Series" as newer revisions were put into production. The Mark Series amplifier was Mesa's flagship product until the introduction of the Mesa/Boogie Rectifier, Rectifier series, and the amplifiers are collectable. Mark I Randall Smith began Mesa/Boogie with a practical joke: he borrowed a Fender Princeton (a small 12-watt amplifier) from his friend, Barry Melton of Country Joe and the Fish, and "hotrodded" it by replacing the amplifier section with a powerful Fender Bassman amp and installing a 12-inch speaker instead of the original 10-inch. The resulting amplifier proved to be loud and successful, and Smith made more than 200 of these Princeton "Boogies" - a name allegedly provided by Carlos Santana, who is to have exclaimed "Man, that little thing really boog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visual Inspection
Visual inspection is a common method of quality control, data acquisition, and data analysis. Visual Inspection, used in maintenance of facilities, mean inspection of equipment and structures using either or all of raw human senses such as vision, hearing, touch and smell and/or any non-specialized inspection equipment. Inspections requiring Ultrasonic, X-Ray equipment, Infrared, etc. are not typically regarded as visual inspection as these Inspection methodologies require specialized equipment, training and certification. Quality control A study of the visual inspection of small integrated circuits found that the modal duration of eye fixations of trained inspectors was about 200 ms. The most accurate inspectors made the fewest eye fixations and were the fastest. When the same chip was judged more than once by an individual inspector the consistency of judgment was very high whereas the consistency between inspectors was somewhat less. Variation by a factor of six in inspectio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tomorrow Never Knows
"Tomorrow Never Knows" is a song by the English rock band the Beatles, written primarily by John Lennon and credited to Lennon–McCartney. It was released in August 1966 as the final track on their album ''Revolver'', although it was the first song recorded for the LP. The song marked a radical departure for the Beatles, as the band fully embraced the potential of the recording studio without consideration for reproducing the results in concert. When writing the song, Lennon drew inspiration from his experiences with the hallucinogenic drug LSD and from the 1964 book '' The Psychedelic Experience: A Manual Based on the Tibetan Book of the Dead'' by Timothy Leary, Richard Alpert and Ralph Metzner. The Beatles' recording employed musical elements foreign to pop music, including musique concrète, avant-garde composition and electro-acoustic sound manipulation. It features an Indian-inspired modal backing of tambura and sitar drone and bass guitar, with minimal harmonic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patriarch Mark I
Mark the Evangelist ( Koinē Greek: Μᾶρκος, romanized: ''Mârkos''), also known as John Mark ( Koinē Greek: Ἰωάννης Μᾶρκος, romanized: ''Iōánnēs Mârkos;'' Aramaic'': ܝܘܚܢܢ, romanized: Yōḥannān'') or Saint Mark, was the person who is traditionally ascribed to be the author of the Gospel of Mark. Most modern Bible scholars have concluded that the Gospel of Mark was written by an anonymous author rather than an identifiable historical figure, though the topic remains contentious among experts. According to Church tradition, Mark founded the episcopal see of Alexandria, which was one of the five most important sees of early Christianity. His feast day is celebrated on April 25, and his symbol is the winged lion. Identity According to William Lane (1974), an unbroken tradition identifies Mark the Evangelist with John Mark, and John Mark as the cousin of Barnabas. However, Hippolytus of Rome, in ''On the Seventy Apostles'', distinguishe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark 1
Mark 1 is the first chapter of the Gospel of Mark in the New Testament of the Christian Bible. It recounts the proclamation of John the Baptist, the baptism of Jesus Christ, his temptations and the beginning of his ministry in Galilee. Text The original text was written in Koine Greek. This chapter is divided into 45 verses. Textual witnesses Some early manuscripts containing the text of this chapter are: *Papyrus 137 (2nd/3rd century; extant verses 7–9, 16–18) *Codex Vaticanus (325–350; complete) *Codex Sinaiticus (330–360; omit verse 33) *Codex Bezae (~400; complete) *Codex Washingtonianus (~400; complete) *Codex Alexandrinus (400–440; complete) *Codex Ephraemi Rescriptus (~450; extant verses 18–45) Opening (verse 1) : ''The beginning of the gospel of Jesus Christ, the Son of God;'' The opening verse of the Gospel of Mark sets out Mark's belief right from the start: Anglican Bishop N T WTom Wright describes this verse as "a great way to start". American acad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lovell Telescope
The Lovell Telescope ( ) is a radio telescope at Jodrell Bank Observatory, near Goostrey, Cheshire, in the north-west of England. When construction was finished in 1957, the telescope was the largest steerable dish radio telescope in the world at in diameter; it is now the third-largest, after the Green Bank Telescope, Green Bank telescope in West Virginia, United States, and the Effelsberg 100-m Radio Telescope, Effelsberg telescope in Germany. It was originally known as the "250 ft telescope" or the Radio Telescope at Jodrell Bank, before becoming the Mark I telescope around 1961 when future telescopes (the Mark II (radio telescope), Mark II, Mark III (radio telescope), III, and IV) were being discussed.Lovell, ''The Jodrell Bank Telescopes'' It was renamed to the Lovell Telescope in 1987 after Sir Bernard Lovell, and became a Grade I listed building in 1988. The telescope forms part of the MERLIN and European VLBI Network arrays of radio telescopes. Both Bernard Lovell and Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GE BWR
General Electric's BWR product line of boiling water reactors represents the designs of a relatively large (~18%) percentage of the commercial fission reactors around the world. The progenitor of the BWR line was the 5 MW Vallecitos Boiling Water Reactor (VBWR), brought online in October 1957. Six design iterations, BWR-1 through BWR-6, were introduced between 1955 and 1972. This was followed by the Advanced Boiling Water Reactor (ABWR) introduced in the 1990s and the Economic Simplified Boiling Water Reactor (ESBWR) introduced in the early 2010s. As of August 2018, 83 reactors of this design family have been built, of which 67 reactors are operational. The design garnered world attention in the aftermath of the INES level 7 Fukushima Daiichi nuclear disaster of 11 March 2011. GE had been a major contractor to the Fukushima Daiichi Nuclear Power Plant in Japan, which consisted of six boiling water reactors of GE design. The reactors for Units 1, 2, and 6 were supplied by Gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark I (detector)
The Mark I, also known as the SLAC- LBL Magnetic Detector, was a particle detector that operated at the interaction point of the SPEAR collider from 1973 to 1977. It was the first 4π detector, i.e. the first detector to uniformly cover as much of the 4π steradians (units of solid angle) around the interaction point as possible with different types of component particle detectors arranged in layers. This design proved quite successful, and the detector was used in discoveries of the particle and tau lepton, which both resulted in Nobel Prizes (for Burton Richter in 1976 and Martin Lewis Perl Martin Lewis Perl (June 24, 1927 – September 30, 2014) was an American chemical engineer and physicist who won the Nobel Prize in Physics in 1995 for his discovery of the tau lepton. Life and career Perl was born in New York City, New York. H ... in 1995). This basic design philosophy continues to be used in all modern collider detectors. Details of the detector The detector was enorm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perceptron
In machine learning, the perceptron is an algorithm for supervised classification, supervised learning of binary classification, binary classifiers. A binary classifier is a function that can decide whether or not an input, represented by a vector of numbers, belongs to some specific class. It is a type of linear classifier, i.e. a classification algorithm that makes its predictions based on a linear predictor function combining a set of Weighting, weights with the feature vector. History The artificial neuron network was invented in 1943 by Warren McCulloch and Walter Pitts in ''A Logical Calculus of the Ideas Immanent in Nervous Activity, A logical calculus of the ideas immanent in nervous activity''. In 1957, Frank Rosenblatt was at the Cornell Aeronautical Laboratory. He simulated the perceptron on an IBM 704. Later, he obtained funding by the Information Systems Branch of the United States Office of Naval Research and the Rome Air Development Center, to build a custom- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
