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  2. Gauss gun - Wikipedia

    en.wikipedia.org/wiki/Gauss_gun

    The Gauss gun (often called a Gauss rifle or Gauss cannon) is a device that uses permanent magnets and the physics of the Newton's cradle to accelerate a projectile. Gauss guns are distinct from and predate coil guns , although many works of science fiction (and occasionally educators [ 1 ] ) have confused the two.

  3. Railgun - Wikipedia

    en.wikipedia.org/wiki/Railgun

    A railgun or rail gun, sometimes referred to as a rail cannon, is a linear motor device, typically designed as a weapon, that uses electromagnetic force to launch high-velocity projectiles. The projectile normally does not contain explosives, instead relying on the projectile's high kinetic energy to inflict damage. [ 2 ]

  4. Coilgun - Wikipedia

    en.wikipedia.org/wiki/Coilgun

    Simplified diagram of a multistage coilgun with three coils, a barrel, and a ferromagnetic projectile. A coilgun is a type of mass driver consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. [1]

  5. Benchrest rifle - Wikipedia

    en.wikipedia.org/wiki/Benchrest_rifle

    A benchrest rifle, also colloquially called a "rail gun", is a rifle with its barrel and action mechanism built into a machine rest, used mainly for benchrest shooting. The rifle has no proper stock and its base uses adjustable feet to provide a stable position on the bench, and the rifle is finely aimed with horizontal and vertical adjustments ...

  6. Helical railgun - Wikipedia

    en.wikipedia.org/wiki/Helical_railgun

    The helical railgun is a cross between a railgun and a coilgun. They do not currently exist in a practical, usable form. A helical railgun was built at MIT in 1980 and was powered by several banks of, for the time, large capacitors (approximately 4 farads). It was about 3 meters long, consisting of 2 meters of accelerating coil and 1 meter of ...

  7. Gaussian quadrature - Wikipedia

    en.wikipedia.org/wiki/Gaussian_quadrature

    As the integrand is the third-degree polynomial y(x) = 7x 3 – 8x 2 – 3x + 3, the 2-point Gaussian quadrature rule even returns an exact result. In numerical analysis , an n -point Gaussian quadrature rule , named after Carl Friedrich Gauss , [ 1 ] is a quadrature rule constructed to yield an exact result for polynomials of degree 2 n − 1 ...

  8. Gauss circle problem - Wikipedia

    en.wikipedia.org/wiki/Gauss_circle_problem

    Gauss's circle problem asks how many points there are inside this circle of the form (,) where and are both integers. Since the equation of this circle is given in Cartesian coordinates by x 2 + y 2 = r 2 {\displaystyle x^{2}+y^{2}=r^{2}} , the question is equivalently asking how many pairs of integers m and n there are such that

  9. Gaussian optics - Wikipedia

    en.wikipedia.org/wiki/Gaussian_optics

    Gaussian optics is a technique in geometrical optics that describes the behaviour of light rays in optical systems by using the paraxial approximation, in which only rays which make small angles with the optical axis of the system are considered. [1]