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  2. Optical vortex - Wikipedia

    en.wikipedia.org/wiki/Optical_vortex

    Vortices are points in 2D fields and lines in 3D fields (as they have codimension two). Integrating the phase of the field around a path enclosing a vortex yields an integer multiple of 2 π. This integer is known as the topological charge, or strength, of the vortex. A hypergeometric-Gaussian mode (HyGG) has an optical vortex in its center ...

  3. Vortex Optics - Wikipedia

    en.wikipedia.org/wiki/Vortex_Optics

    Vortex Optics is a DBA of Sheltered Wings, Inc., which was incorporated in Wisconsin in 1989. Sheltered Wings, Inc. DBA Vortex Optics began in 2002. In 2022 after extensive research, testing and reviews Vortex became an official supplier and contractor to the American Military as the U.S. Army selected Vortex‘s XM-157 fire control system for its Next Generation Squad Weapon program.

  4. Vortex lattice method - Wikipedia

    en.wikipedia.org/wiki/Vortex_lattice_method

    The Vortex lattice method, (VLM), is a numerical method used in computational fluid dynamics, mainly in the early stages of aircraft design and in aerodynamic education at university level. The VLM models the lifting surfaces, such as a wing , of an aircraft as an infinitely thin sheet of discrete vortices to compute lift and induced drag .

  5. US reports first outbreak of H5N9 bird flu in poultry - AOL

    www.aol.com/news/us-reports-first-outbreak-h5n9...

    PARIS (Reuters) -The United States has reported its first outbreak of H5N9 bird flu in poultry on a duck farm in California, the World Organisation for Animal Health (WOAH) said on Monday. U.S ...

  6. Leupold & Stevens - Wikipedia

    en.wikipedia.org/wiki/Leupold_&_Stevens

    Leupold & Stevens, Inc. is an American manufacturer of telescopic sights, red dot sights, binoculars, rangefinders, spotting scopes, and eyewear located in Beaverton, Oregon, United States. The company, started in 1907, is on its fifth generation of family ownership.

  7. Ariana Grande isn’t just a pop culture icon—she’s also a fan of cooking at home. On a recent episode of the podcast SmartLess, Ariana shared her favorite go-to meal, and it’s surprisingly ...

  8. Magnetic skyrmion - Wikipedia

    en.wikipedia.org/wiki/Magnetic_skyrmion

    where p describes the magnetisation direction in the origin (p=1 (−1) for (=) = ()) and W is the winding number. Considering the same uniform magnetisation, i.e. the same p value, the winding number allows to define the skyrmion (()) with a positive winding number and the antiskyrmion (()) with a negative winding number and thus a topological charge opposite to the one of the skyrmion.

  9. Scientists digitally "unroll" ancient scroll scorched by ...

    www.aol.com/news/scientists-digitally-unroll...

    The mystery is still unravelling, and on Wednesday, a major breakthrough was announced. Researchers say they've now managed to digitally unroll and start reading one of the ancient scrolls.