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  1. Tensile testing, also known as tension testing, [1] is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. Properties that are directly measured via a tensile test are ultimate tensile strength, breaking strength, maximum elongation and reduction in area. [2] .

  2. Score distribution chart for sample of 905 children tested on 1916 Stanford–Binet Test IQ classification is the practice of categorizing human intelligence, as measured by intelligence quotient (IQ) tests, into categories such as "superior" or "average".[1][2][3][4] In the current IQ scoring method, an IQ score of 100 means that the test ...

  3. High-performance liquid chromatography ( HPLC ), formerly referred to as high-pressure liquid chromatography, is a technique in analytical chemistry used to separate, identify, and quantify specific components in mixtures.

  4. 1991–2015 [1] Number built. 279 [1] Developed from. McDonnell Douglas YC-15. The McDonnell Douglas / Boeing C-17 Globemaster III is a large military transport aircraft that was developed for the United States Air Force (USAF) from the 1980s to the early 1990s by McDonnell Douglas. The C-17 carries forward the name of two previous piston ...

  5. Canonical commutation rule for position q and momentum p variables of a particle, 1927. pq − qp = h / (2 πi ). Uncertainty principle of Heisenberg, 1927. The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics. It states that there is a limit to the precision with which ...

  6. en.wikipedia.org › wiki › Northrop_Grumman_B-2_SpiritNorthrop B-2 Spirit - Wikipedia

    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.

  7. United States Air Force. Produced. 1972–1984 [1] Number built. 716 [2] The Fairchild Republic A-10 Thunderbolt II is a single-seat, twin - turbofan, straight-wing, subsonic attack aircraft developed by Fairchild Republic for the United States Air Force (USAF). In service since 1977, it is named after the Republic P-47 Thunderbolt, but is ...

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