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  2. Leap second - Wikipedia

    en.wikipedia.org/wiki/Leap_second

    Screenshot of the UTC clock from time.gov during the leap second on 31 December 2016.. A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time (UTC), to accommodate the difference between precise time (International Atomic Time (TAI), as measured by atomic clocks) and imprecise observed solar time (), which varies due to irregularities and long-term ...

  3. LEAPS (finance) - Wikipedia

    en.wikipedia.org/wiki/LEAPS_(finance)

    LEAPS were created relatively recently and typically extend for terms of 2 years out. Equity LEAPS typically expire in January. For example, if today were December 2020, one could buy a Microsoft option that would expire in January of 2021, 2022, or 2023. The latter two are LEAPS. In practice, LEAPS behave and are traded just like standard options.

  4. Atomic electron transition - Wikipedia

    en.wikipedia.org/wiki/Atomic_electron_transition

    An electron in a Bohr model atom, moving from quantum level n = 3 to n = 2 and releasing a photon.The energy of an electron is determined by its orbit around the atom, The n = 0 orbit, commonly referred to as the ground state, has the lowest energy of all states in the system.

  5. Doomsday rule - Wikipedia

    en.wikipedia.org/wiki/Doomsday_rule

    A simple flowchart showing the Odd+11 method to calculate the anchor day A simpler method for finding the year's anchor day was discovered in 2010 by Chamberlain Fong and Michael K. Walters, [ 12 ] and described in their paper submitted to the 7th International Congress on Industrial and Applied Mathematics (2011).

  6. Steps and skips - Wikipedia

    en.wikipedia.org/wiki/Steps_and_skips

    Renaissance melodies are generally characterized by conjunct motion, with only occasional leaps of more than a fifth and then rarely anything but a sixth or octave. [1] In contrast, melody in the 20th century varied greatly including the diatonic idiom of the 18th century ( Classical ), the variety of idioms from the 19th century ( Romantic ...

  7. Quantum leap - Wikipedia

    en.wikipedia.org/wiki/Quantum_Leap

    Quantum leap (physics), also known as quantum jump, a transition between quantum states Atomic electron transition, a key example of the physics phenomenon; Paradigm shift, a sudden change of thinking, especially in a scientific discipline

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  9. Electronvolt - Wikipedia

    en.wikipedia.org/wiki/Electronvolt

    An electronvolt is the amount of energy gained or lost by a single electron when it moves through an electric potential difference of one volt.Hence, it has a value of one volt, which is 1 J/C, multiplied by the elementary charge e = 1.602 176 634 × 10 −19 C. [2]