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  2. Particular values of the gamma function - Wikipedia

    en.wikipedia.org/wiki/Particular_values_of_the...

    The gamma function is an important special function in mathematics. Its particular values can be expressed in closed form for integer and half-integer arguments, but no simple expressions are known for the values at rational points in general. Other fractional arguments can be approximated through efficient infinite products, infinite series ...

  3. Paradox of radiation of charged particles in a gravitational ...

    en.wikipedia.org/wiki/Paradox_of_radiation_of...

    One of the first to study this problem was Max Born in his 1909 paper about the consequences of a charge in uniformly accelerated frame. [1] Earlier concerns and possible solutions were raised by Wolfgang Pauli (1918), [ 2 ] Max von Laue (1919), [ 3 ] and others, but the most recognized work on the subject is the resolution of Thomas Fulton and ...

  4. Elementary charge - Wikipedia

    en.wikipedia.org/wiki/Elementary_charge

    T I {\displaystyle {\mathsf {TI}}} Value. 1.602 176 634 × 10−19 C. ‍. [1] The elementary charge, usually denoted by e, is a fundamental physical constant, defined as the electric charge carried by a single proton or, equivalently, the magnitude of the negative electric charge carried by a single electron, which has charge1 e. [2] [a]

  5. Triboelectric effect - Wikipedia

    en.wikipedia.org/wiki/Triboelectric_effect

    e. The triboelectric effect (also known as triboelectricity, triboelectric charging, triboelectrification, or tribocharging) describes electric charge transfer between two objects when they contact or slide against each other. It can occur with different materials, such as the sole of a shoe on a carpet, or between two pieces of the same material.

  6. Gray (unit) - Wikipedia

    en.wikipedia.org/wiki/Gray_(unit)

    Preventive (adjuvant) doses are typically around 45–60 Gy in 1.8–2 Gy fractions (for breast, head, and neck cancers). The average radiation dose from an abdominal X-ray is 0.7 millisieverts (0.0007 Sv), that from an abdominal CT scan is 8 mSv, that from a pelvic CT scan is 6 mGy, and that from a selective CT scan of the abdomen and the ...

  7. Centimetre–gram–second system of units - Wikipedia

    en.wikipedia.org/wiki/Centimetre–gram–second...

    In the CGS-ESU system, charge q is therefore has the dimension to M 1/2 L 3/2 T −1. Other units in the CGS-ESU system include the statampere (1 statC/s) and statvolt (1 erg /statC). In CGS-ESU, all electric and magnetic quantities are dimensionally expressible in terms of length, mass, and time, and none has an independent dimension.

  8. Weinberg angle - Wikipedia

    en.wikipedia.org/wiki/Weinberg_angle

    Weinberg angle θ W, and relation between couplings g, g ′, and e = g sin θ W. Adapted from Lee (1981). The pattern of weak isospin, T 3, and weak hypercharge, Y W, of the known elementary particles, showing electric charge, Q, along the Weinberg angle. The neutral Higgs field (upper left, circled) breaks the electroweak symmetry and ...

  9. Partial charge - Wikipedia

    en.wikipedia.org/wiki/Partial_charge

    Partial charge. In atomic physics, a partial charge (or net atomic charge) is a non- integer charge value when measured in elementary charge units. It is represented by the Greek lowercase delta (𝛿), namely 𝛿− or 𝛿+. Partial charges are created due to the asymmetric distribution of electrons in chemical bonds.