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Wave mechanics

This list has 5 sub-lists and 12 members. See also Waves, Partial differential equations, Classical mechanics
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Diffraction
Diffraction 3 L, 11 T
Interference
Interference 1 L, 3 T
Surface waves
Surface waves 1 L, 4 T
Frequency
Frequency 4 L, 1 T
  • Frequency Number of occurrences or cycles per unit time
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    Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. The period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency. For example: if a newborn baby's heart beats at a frequency of 120 times a minute, its period, T, — the time interval between beats—is half a second (60 seconds divided by 120 beats). Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light.
  • Wave interference
    Wave interference Phenomenon
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    In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. Constructive and destructive interference result from the interaction of waves that are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency. Interference effects can be observed with all types of waves, for example, light, radio, acoustic, surface water waves, gravity waves, or matter waves. The resulting images or graphs are called interferograms.
  • Tidal bore
    Tidal bore A water wave traveling upstream a river or narrow bay because of an incoming tide
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    A tidal bore, often simply given as bore in context, is a tidal phenomenon in which the leading edge of the incoming tide forms a wave (or waves) of water that travels up a river or narrow bay against the direction of the river or bay's current.
  • John N. Shive
    John N. Shive American physicist
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    John Northrup Shive (February 22, 1913 – June 1, 1984) was an American physicist and inventor. He made notable contributions in electronic engineering and solid-state physics during the early days of transistor development at Bell Laboratories. In particular, he produced experimental evidence that holes could diffuse through bulk germanium, and not just along the surface as previously thought. This paved the way from Bardeen and Brattain's point-contact transistor to Shockley's more-robust junction transistor. Shive is best known for inventing the phototransistor in 1948 (a device that combines the sensitivity to light of a photodiode and the current gain of a transistor), and for the Shive wave machine in 1959 (an educational apparatus used to illustrate wave motion).
  • Sine wave
    Sine wave Mathematical curve that describes a smooth repetitive oscillation; continuous wave
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    A sine wave or sinusoid is a mathematical curve that describes a smooth periodic oscillation. A sine wave is a continuous wave. It is named after the function sine, of which it is the graph. It occurs often in pure and applied mathematics, as well as physics, engineering, signal processing and many other fields. Its most basic form as a function of time (t) is:
  • Schrödinger equation
    Schrödinger equation Linear partial differential equation whose solution describes the quantum-mechanical system.
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    The Schrödinger equation is a linear partial differential equation that describes the wave function or state function of a quantum-mechanical system. It is a key result in quantum mechanics, and its discovery was a significant landmark in the development of the subject. The equation is named after Erwin Schrödinger, who postulated the equation in 1925, and published it in 1926, forming the basis for the work that resulted in his Nobel Prize in Physics in 1933.
  • Soliton
    Soliton a self-reinforcing single wave packet that maintains its shape while it propagates at a constant velocity
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    In mathematics and physics, a soliton or solitary wave is a self-reinforcing wave packet that maintains its shape while it propagates at a constant velocity. Solitons are caused by a cancellation of nonlinear and dispersive effects in the medium. (The term "dispersive effects" refers to a property of certain systems where the speed of the waves varies according to frequency.) Solitons are the solutions of a widespread class of weakly nonlinear dispersive partial differential equations describing physical systems.
  • Doppler effect
    Doppler effect Frequency change of a wave for observer relative to its source
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    The Doppler effect (or the Doppler shift) is the change in frequency of a wave in relation to an observer who is moving relative to the wave source. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842.
  • Phase (waves)
    Phase (waves) The elapsed fraction of a cycle of a periodic function
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    In physics and mathematics, the phase of a periodic function F {\displaystyle F} of some real variable t {\displaystyle t} is the relative value of that variable within the span of each full period.
  • Wave propagation Any of the ways in which waves travel
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    Wave propagation is any of the ways in which waves travel.
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