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  2. Betatron - Wikipedia

    en.wikipedia.org/wiki/Betatron

    The betatron was the first machine capable of producing electron beams at energies higher than could be achieved with a simple electron gun, and the first circular accelerator in which particles orbited at a constant radius. [1] The concept of the betatron had been proposed as early as 1922 by Joseph Slepian. [2]

  3. List of Feynman diagrams - Wikipedia

    en.wikipedia.org/wiki/List_of_Feynman_diagrams

    electron-electron scattering Bhabha scattering: electron-positron scattering Penguin diagram: a quark changes flavor via a W or Z loop Tadpole diagram: One loop diagram with one external leg Self-interaction or oyster diagram An electron emits and reabsorbs a photon Box diagram The box diagram for kaon oscillations: Photon-photon scattering

  4. Simple machine - Wikipedia

    en.wikipedia.org/wiki/Simple_machine

    A simple machine is a mechanical device that changes the direction or magnitude of a force. [1] In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called leverage) to multiply force. [2] Usually the term refers to the six classical simple machines that were defined by Renaissance scientists: [3] [4 ...

  5. Rutherford model - Wikipedia

    en.wikipedia.org/wiki/Rutherford_model

    In the same paper that Thomson announced his results on "corpuscle" nature of cathode rays, an event considered the discovery of the electron, he began speculating on atomic models composed of electrons. He developed his model, now called the plum pudding model, primarily in 1904-06. He produced an elaborate mechanical model of the electrons ...

  6. Empty lattice approximation - Wikipedia

    en.wikipedia.org/wiki/Empty_lattice_approximation

    The dispersion relations show conics of the free-electron energy dispersion parabolas for all possible reciprocal lattice vectors. This results in a very complicated set intersecting of curves when the dispersion relations are calculated because there is a large number of possible angles between evaluation trajectories, first and higher order ...

  7. Jay-Z accused in a lawsuit of raping a 13-year-old girl in ...

    www.aol.com/jay-z-accused-civil-lawsuit...

    Jay-Z, the star rapper and entrepreneur whose real name is Shawn Carter, was accused in a lawsuit Sunday of raping a 13-year-old girl in 2000 allegedly along with Sean “Diddy” Combs.

  8. AI boom, Fed rate cuts lift U.S. stocks to new highs in 2024

    www.aol.com/ai-boom-fed-rate-cuts-113757978.html

    The S&P 500, Dow and Nasdaq are near record highs and are on track to end higher for a second straight year. A nearly 100-basis point cut in interest rates in 2024 by the Federal Reserve and a ...

  9. Electromagnetic pump - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_pump

    An electromagnetic pump is a pump that moves liquid metal, molten salt, brine, or other electrically conductive liquid using electromagnetism.. A magnetic field is set at right angles to the direction the liquid moves in, and a current is passed through it.

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