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  2. Comparison of statistical packages - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_statistical...

    J. H. Abramson June 2008 () No Proprietary: GUI: WPS Analytics: World Programming: March 2018 () No Proprietary: CLI, GUI: C, Assembler Python, R, SAS and SQL languages WINKS: TexaSoft August 2013 () No Proprietary: GUI: Fortran, Visual Basic XploRe: MD*Tech 2006 () No Proprietary: GUI: Product Developer Latest version Open source Software license

  3. Thermonuclear weapon - Wikipedia

    en.wikipedia.org/wiki/Thermonuclear_weapon

    Radiation case (confines thermal X-rays by reflection) A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lower mass, or a combination of these benefits.

  4. Dispersion (optics) - Wikipedia

    en.wikipedia.org/wiki/Dispersion_(optics)

    The most commonly seen consequence of dispersion in optics is the separation of white light into a color spectrum by a prism. From Snell's law it can be seen that the angle of refraction of light in a prism depends on the refractive index of the prism material.

  5. Uniform 4-polytope - Wikipedia

    en.wikipedia.org/wiki/Uniform_4-polytope

    Only vertices and edges are drawn. In geometry, a uniform 4-polytope (or uniform polychoron) [ 1 ] is a 4-dimensional polytope which is vertex-transitive and whose cells are uniform polyhedra, and faces are regular polygons. There are 47 non- prismatic convex uniform 4-polytopes.

  6. Hubble's law - Wikipedia

    en.wikipedia.org/wiki/Hubble's_law

    Hubble's law is considered the first observational basis for the expansion of the universe, and today it serves as one of the pieces of evidence most often cited in support of the Big Bang model. [3][4] The motion of astronomical objects due solely to this expansion is known as the Hubble flow. [5] It is described by the equation v = H0D, with H0 the constant of proportionality—the Hubble ...

  7. Magnetic field - Wikipedia

    en.wikipedia.org/wiki/Magnetic_field

    Magnetic field. A permanent magnet, a piece of magnetized metal alloy. A solenoid (electromagnet), a coil of wire with an electric current through it. The shape of the magnetic fields of a permanent magnet and an electromagnet are revealed by the orientation of iron filings sprinkled on pieces of paper.

  8. High Efficiency Video Coding - Wikipedia

    en.wikipedia.org/wiki/High_Efficiency_Video_Coding

    High Efficiency Video Coding (HEVC), also known as H.265 and MPEG-H Part 2, is a video compression standard designed as part of the MPEG-H project as a successor to the widely used Advanced Video Coding (AVC, H.264, or MPEG-4 Part 10).

  9. Euler equations (fluid dynamics) - Wikipedia

    en.wikipedia.org/wiki/Euler_equations_(fluid...

    This incompressible flow satisfies the Euler equations. In fluid dynamics, the Euler equations are a set of partial differential equations governing adiabatic and inviscid flow. They are named after Leonhard Euler. In particular, they correspond to the Navier–Stokes equations with zero viscosity and zero thermal conductivity.