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  2. Melodic motion - Wikipedia

    en.wikipedia.org/wiki/Melodic_motion

    Undulating: Equal movement in both directions, using approximately the same intervals for ascent and descent (prevalent in Old World culture music). Usually concludes with a descending progression. Pendulum: Extreme form of undulating movement that covers a large range and uses large intervals is called pendulum-type melodic movement. Like ...

  3. Pendulum (mechanics) - Wikipedia

    en.wikipedia.org/wiki/Pendulum_(mechanics)

    A simple gravity pendulum [1] is an idealized mathematical model of a real pendulum. [2] [3] [4] It is a weight (or bob) on the end of a massless cord suspended from a pivot, without friction. Since in the model there is no frictional energy loss, when given an initial displacement it swings back and forth with a constant amplitude. The model ...

  4. Horologium Oscillatorium - Wikipedia

    en.wikipedia.org/wiki/Horologium_Oscillatorium

    Horologium Oscillatorium: Sive de Motu Pendulorum ad Horologia Aptato Demonstrationes Geometricae (English: The Pendulum Clock: or Geometrical Demonstrations Concerning the Motion of Pendula as Applied to Clocks) is a book published by Dutch mathematician and physicist Christiaan Huygens in 1673 and his major work on pendula and horology.

  5. Contrapuntal motion - Wikipedia

    en.wikipedia.org/wiki/Contrapuntal_motion

    In music theory, contrapuntal motion is the general movement of two or more melodic lines with respect to each other. [1] In traditional four-part harmony, it is important that lines maintain their independence, an effect which can be achieved by the judicious use of the four types of contrapuntal motion: parallel motion, similar motion, contrary motion, and oblique motion.

  6. Pendulum clock - Wikipedia

    en.wikipedia.org/wiki/Pendulum_clock

    A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is an approximate harmonic oscillator : It swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates.

  7. Meanwhile, her brothers Donald Trump Jr. and Eric Trump fully embraced their father’s “Make America Great Again” movement, in part filling the vacuum created by their sister’s campaign ...

  8. Pendulum wave - Wikipedia

    en.wikipedia.org/wiki/Pendulum_wave

    A pendulum wave is an elementary physics demonstration and kinetic art comprising a number of uncoupled simple pendulums with monotonically increasing lengths. As the pendulums oscillate, they appear to produce travelling and standing waves , beating , and random motion.

  9. New brain therapy allows paralyzed patients to walk again: 'I ...

    www.aol.com/brain-therapy-allows-paralyzed...

    New research suggests that paralyzed patients could regain some degree of movement — perhaps even walk again. In a study led by EPFL (Swiss Federal Technology Institute of Lausanne) and Lausanne ...