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  2. Frog battery - Wikipedia

    en.wikipedia.org/wiki/Frog_battery

    Bird's diagram of a frog battery, 1848 The first frog battery was constructed by Eusebio Valli in the 1790s with a chain of 10 frogs. Valli had difficulty understanding all of his own results; he followed Luigi Galvani in believing that animal electricity (or galvanic electricity ) was a different phenomenon from metal-metal electricity (or ...

  3. Charged current - Wikipedia

    en.wikipedia.org/wiki/Charged_current

    The simplest Feynman diagram for beta decay. It contains a charged current interaction at each vertex. Charged current interactions are the most easily detected class of weak interactions. The weak force is best known for mediating nuclear decay. It has very short range, but is the only force (apart from gravity) to interact with neutrinos.

  4. Mathematical formulation of the Standard Model - Wikipedia

    en.wikipedia.org/wiki/Mathematical_formulation...

    Interactions in the Standard Model. All Feynman diagrams in the model are built from combinations of these vertices. q is any quark, g is a gluon, X is any charged particle, γ is a photon, f is any fermion, m is any particle with mass (with the possible exception of the neutrinos), m B is any boson with mass. In diagrams with multiple particle ...

  5. Frog (horse anatomy) - Wikipedia

    en.wikipedia.org/wiki/Frog_(horse_anatomy)

    The frog is a part of a horse hoof, located on the underside, which should touch the ground if the horse is standing on soft footing. The frog is triangular in shape, and extends midway from the heels toward the toe, covering around 25% of the bottom of the hoof.

  6. Electric current - Wikipedia

    en.wikipedia.org/wiki/Electric_current

    An electric current is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is defined as the net rate of flow of electric charge through a surface. [1]: 2 [2]: 622 The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor.

  7. Charged particle - Wikipedia

    en.wikipedia.org/wiki/Charged_particle

    In physics, a charged particle is a particle with an electric charge. For example, some elementary particles, like the electron or quarks are charged. [1] Some composite particles like protons are charged particles. An ion, such as a molecule or atom with a surplus or deficit of electrons relative to protons are also charged particles.

  8. Flow battery - Wikipedia

    en.wikipedia.org/wiki/Flow_battery

    A typical flow battery consists of two tanks of liquids which are pumped past a membrane held between two electrodes. [1]A flow battery, or redox flow battery (after reduction–oxidation), is a type of electrochemical cell where chemical energy is provided by two chemical components dissolved in liquids that are pumped through the system on separate sides of a membrane.

  9. Tracking (particle physics) - Wikipedia

    en.wikipedia.org/wiki/Tracking_(particle_physics)

    In particle physics, tracking is the process of reconstructing the trajectory (or track) of electrically charged particles in a particle detector known as a tracker.The particles entering such a tracker leave a precise record of their passage through the device, by interaction with suitably constructed components and materials.