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4 天前 · The Northrop B-2 Spirit, also known as the Stealth Bomber, is an American heavy strategic bomber, featuring low-observable stealth technology designed to penetrate dense anti-aircraft defenses. A subsonic flying wing with a crew of two, the plane was designed by Northrop (later Northrop Grumman) as the prime contractor, with Boeing, Hughes, and ...
5 天前 · For statistics and control theory, Kalman filtering, also known as linear quadratic estimation ( LQE ), is an algorithm that uses a series of measurements observed over time, including statistical noise and other inaccuracies, and produces estimates of unknown variables that tend to be more accurate than those based on a single measurement alone...
1 天前 · Richard Phillips Feynman (/ ˈ f aɪ n m ə n /; May 11, 1918 – February 15, 1988) was an American theoretical physicist, known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, the physics of the superfluidity of supercooled liquid helium, as well as his work in particle physics for which he proposed the parton model.
2 天前 · Probability theory. In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of its probability density function is. The parameter is the mean or expectation of the distribution (and also its median and mode ), while ...
4 天前 · Judith Pamela Butler[1] (born February 24, 1956) is an American philosopher and gender studies scholar whose work has influenced political philosophy, ethics, and the fields of third-wave feminism,[2] queer theory,[3] and literary theory.[4] In 1993, Butler began teaching at the University of California, Berkeley, where they[a] have served ...
4 天前 · Cynthia Ann Stephanie Lauper (/ˈlɔːpər/; born June 22, 1953) is an American singer, songwriter, actress, and activist.[2] Her career has spanned over 40 years.[3] Her album She's So Unusual (1983) was the first debut album by a female artist to achieve four top-five hits on the Billboard Hot 100—"Girls Just Want to Have Fun", "Time After ...
5 天前 · Michael Jackson 's Thriller, estimated to have sold between 70 and 100 million copies worldwide, [4] is the best-selling album ever. [5] [6] [7] Jackson also currently has the highest number of albums on the list with five, while Celine Dion has four and the Beatles, Pink Floyd, Madonna and Whitney Houston each have three.
