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2 天前 · The Planck constant, or Planck's constant, denoted by , [1] is a fundamental physical constant [1] of foundational importance in quantum mechanics: a photon 's energy is equal to its frequency multiplied by the Planck constant, and the wavelength of a matter wave equals the Planck constant divided by the associated particle momentum.
2 天前 · Bison bison montanaeKrumbiegel, 1980. The American bison ( Bison bison; pl.: bison ), also called the American buffalo or simply buffalo (not to be confused with true buffalo ), is a species of bison native to North America. It is one of two extant species of bison, alongside the European bison.
1 天前 · ARM (stylised in lowercase as arm, formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a family of RISC instruction set architectures (ISAs) for computer processors. Arm Ltd. develops the ISAs and licenses them to other companies, who build the physical devices that use the instruction set.
1 天前 · BRICS is an intergovernmental organization comprising Brazil, Russia, India, China, South Africa, Iran, Egypt, Ethiopia, and the United Arab Emirates. Originally identified to highlight investment opportunities,[1] the grouping evolved into a cohesive geopolitical bloc, with their governments meeting annually at formal summits and coordinating ...
4 天前 · Laplace transform. In mathematics, the Laplace transform, named after Pierre-Simon Laplace ( / ləˈplɑːs / ), is an integral transform that converts a function of a real variable (usually , in the time domain) to a function of a complex variable (in the complex-valued frequency domain, also known as s-domain, or s-plane ).
1 天前 · FIFA.com. The Fédération internationale de football association ( French for ' International Federation of Association Football '; abbreviated as FIFA and pronounced in English as / ˈfiːfə / FEE-fə) is an international self-regulatory governing body of association football, beach soccer, and futsal. It was founded in 1904 [3] to oversee ...
5 天前 · The word psychopathy is a joining of the Greek words psyche ( ψυχή) "soul" and pathos ( πάθος) "suffering, feeling". [17] The first documented use is from 1847 in Germany as psychopatisch, [18] and the noun psychopath has been traced to 1885. [19] In medicine, patho- has a more specific meaning of disease (Thus pathology has meant the ...
