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Gunslinger Effect
The gunslinger effect, also sometimes called Bohr's law or the gunfighter's dilemma, is a psychophysical theory which says that an intentional or willed movement is slower than an automatic or reaction movement. The concept is named after physicist Niels Bohr, who first deduced that the person who draws second in a gunfight will actually win the shoot-out. Bohr's experiment Danish physicist Niels Henrik David Bohr came up with the hypothesis after watching Western films, which frequently depicted the protagonist drawing after his opponent in a gunfight and winning. He hypothesized that a person reacting might move faster than their opponent, who moved deliberately. Bohr and his students staged mock gunfights using toy guns to test this hypothesis, with apparently uncertain results. Bohr suggested that, to the extent the hypothesis is true, the logical alternative to a gunfight would be a peaceful settlement, since neither gunslinger would want to draw first knowing that they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niels Bohr 1935
Niels is a male given name, equivalent to Nicholas, which is common in Denmark, Belgium, Norway (formerly) and the Netherlands. The Norwegian and Swedish variant is Nils. The name is a developed short form of Nicholas or Greek Nicolaos after Saint Nicholas. Its pet form is Nisse, and female variants are Nielsine, Nielsina, and Nielsa. Niels may refer to: People *Niels, King of Denmark (1065–1134) *Niels, Count of Halland (died 1218) *Niels Aagaard (1612–1657), Danish poet *Niels Aall (1769–1854), Norwegian businessman and politician *Niels Henrik Abel (1802–1829), Norwegian mathematician *Niels Arestrup (born 1949), French actor *Niels Viggo Bentzon (1919–2000), Danish composer and pianist *Niels Bohr (1885–1962), Danish physicist and Nobel Prize recipient *Niels Busk (born 1942), Danish politician *Niels Ebbesen (died 1340), Danish squire and national hero *Niels Feijen (born 1977), Dutch pool player *Niels Ferguson (born 1965), Dutch cryptographer *Niels Friis (die ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychophysics
Psychophysics quantitatively investigates the relationship between physical stimuli and the sensations and perceptions they produce. Psychophysics has been described as "the scientific study of the relation between stimulus and sensation" or, more completely, as "the analysis of perceptual processes by studying the effect on a subject's experience or behaviour of systematically varying the properties of a stimulus along one or more physical dimensions". ''Psychophysics'' also refers to a general class of methods that can be applied to study a perceptual system. Modern applications rely heavily on threshold measurement, ideal observer analysis, and signal detection theory. Psychophysics has widespread and important practical applications. For example, in the study of digital signal processing, psychophysics has informed the development of models and methods of lossy compression. These models explain why humans perceive very little loss of signal quality when audio and video sign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niels Bohr
Niels Henrik David Bohr (; 7 October 1885 – 18 November 1962) was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research. Bohr developed the Bohr model of the atom, in which he proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another. Although the Bohr model has been supplanted by other models, its underlying principles remain valid. He conceived the principle of complementarity: that items could be separately analysed in terms of contradictory properties, like behaving as a wave or a stream of particles. The notion of complementarity dominated Bohr's thinking in both science and philosophy. Bohr founded the Institute of Theoretical Physics at the University of Cope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Film
The Western is a genre set in the American frontier and commonly associated with folk tales of the Western United States, particularly the Southwestern United States, as well as Northern Mexico and Western Canada. It is commonly referred to as the "Old West" or the "Wild West" and depicted in Western media as a hostile, sparsely populated frontier in a state of near-total lawlessness patrolled by outlaws, sheriffs, and numerous other stock "gunslinger" characters. Western narratives often concern the gradual attempts to tame the crime-ridden American West using wider themes of justice, freedom, rugged individualism, Manifest Destiny, and the national history and identity of the United States. History The first films that belong to the Western genre are a series of short single reel silents made in 1894 by Edison Studios at their Black Maria studio in West Orange, New Jersey. These featured veterans of ''Buffalo Bill's Wild West'' show exhibiting skills acquired by living ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Birmingham
, mottoeng = Through efforts to heights , established = 1825 – Birmingham School of Medicine and Surgery1836 – Birmingham Royal School of Medicine and Surgery1843 – Queen's College1875 – Mason Science College1898 – Mason University College1900 – gained university status by royal charter , city = Birmingham , province = West Midlands , country = England, UK , coor = , campus = Urban, suburban , academic_staff = 5,495 (2020) , administrative_staff = , head_label = Visitor , head = The Rt Hon Penny Mordaunt MP , chancellor = Lord Bilimoria , vice_chancellor = Adam Tickell , type = Public , endowment = £134.5 million (2021) , budget = £774.1 million (2020–21) , students = () , undergrad = () , postgrad = () , affiliations = Universitas 21Universities UK EUA ACUSutton 13Russell Group , free_label = , free = , colours = The University , website = , logo = The University of Birmingham (informally Birmingham University) i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reaction Time
Mental chronometry is the scientific study of processing speed or reaction time on cognitive tasks to infer the content, duration, and temporal sequencing of mental operations. Reaction time (RT; sometimes referred to as "response time") is measured by the elapsed time between stimulus onset and an individual's response on elementary cognitive tasks (ETCs), which are relatively simple perceptual-motor tasks typically administered in a laboratory setting. Mental chronometry is one of the core methodological paradigms of human experimental, cognitive, and differential psychology, but is also commonly analyzed in psychophysiology, cognitive neuroscience, and behavioral neuroscience to help elucidate the biological mechanisms underlying perception, attention, and decision-making in humans and other species. Mental chronometry uses measurements of elapsed time between sensory stimulus onsets and subsequent behavioral responses to study the time course of information processing in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karate
(; ; Okinawan language, Okinawan pronunciation: ) is a martial arts, martial art developed in the Ryukyu Kingdom. It developed from the Okinawan martial arts, indigenous Ryukyuan martial arts (called , "hand"; ''tii'' in Okinawan) under the influence of Chinese martial arts, particularly Fujian White Crane. Karate is now predominantly a striking art using Punch (combat), punching, kicking, knee (strike), knee strikes, elbow strikes and open-hand techniques such as Knifehand strike, knife-hands, spear-hands and palm-heel strikes. Historically, and in some modern styles, grappling, throws, joint locks, restraints and kyusho-jitsu, vital-point strikes are also taught. A karate practitioner is called a . The Empire of Japan annexed the Ryukyu Kingdom in 1879. Karate came to mainland Japan in the early 20th century during a time of migration as Ryukyuans, especially from Okinawa, looked for work in the main islands of Japan. It was systematically taught in Japan after the Taishō ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexican Standoff
A Mexican standoff is a confrontation in which no strategy exists that allows any party to achieve victory. Any party initiating aggression might trigger its own demise. At the same time, the parties are unable to extricate themselves from the situation without suffering a loss. As a result, all participants need to maintain the strategic tension, which remains unresolved until some outside event or interparty dialogue makes it possible to resolve it. The term ''Mexican standoff'' was originally used in the context of using firearms and it still commonly implies a situation in which the parties face some form of threat from the other parties. The Mexican standoff is a recurring trope in cinema, in which several armed characters hold each other at gunpoint. Etymology Sources claim the reference is to the Mexican–American War or post-war Mexican bandits in the 19th century. The earliest use of the phrase in print was on 19 March 1876, in a short story about Mexico. An American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypotheses
A hypothesis (plural hypotheses) is a proposed explanation for a phenomenon. For a hypothesis to be a scientific hypothesis, the scientific method requires that one can test it. Scientists generally base scientific hypotheses on previous observations that cannot satisfactorily be explained with the available scientific theories. Even though the words "hypothesis" and "theory" are often used interchangeably, a scientific hypothesis is not the same as a scientific theory. A working hypothesis is a provisionally accepted hypothesis proposed for further research in a process beginning with an educated guess or thought. A different meaning of the term ''hypothesis'' is used in formal logic, to denote the antecedent of a proposition; thus in the proposition "If ''P'', then ''Q''", ''P'' denotes the hypothesis (or antecedent); ''Q'' can be called a consequent. ''P'' is the assumption in a (possibly counterfactual) ''What If'' question. The adjective ''hypothetical'', meaning "havin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Experiments
An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale but always rely on repeatable procedure and logical analysis of the results. There also exist natural experimental studies. A child may carry out basic experiments to understand how things fall to the ground, while teams of scientists may take years of systematic investigation to advance their understanding of a phenomenon. Experiments and other types of hands-on activities are very important to student learning in the science classroom. Experiments can raise test scores and help a student become more engaged and interested in the material they are learning, especially when used over time. Experiments can vary from personal and informal natural comparisons (e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motor Control
Motor control is the regulation of movement in organisms that possess a nervous system. Motor control includes reflexes as well as directed movement. To control movement, the nervous system must integrate multimodal sensory information (both from the external world as well as proprioception) and elicit the necessary signals to recruit muscles to carry out a goal. This pathway spans many disciplines, including multisensory integration, signal processing, coordination, biomechanics, and cognition, and the computational challenges are often discussed under the term sensorimotor control. Successful motor control is crucial to interacting with the world to carry out goals as well as for posture, balance, and stability. Some researchers (mostly neuroscientists studying movement, such as Daniel Wolpert and Randy Flanagan) argue that motor control is the reason brains exist at all. Neural control of muscle force All movements, e.g. touching your nose, require motor neurons to fire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
