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Undulatory locomotion is the type of motion characterized by wave-like movement patterns that act to propel an animal forward. Examples of this type of gait include crawling in snakes, or swimming in the lamprey. Although this is typically the type of gait utilized by limbless animals, some creatures with limbs, such as the salamander, forgo ...
Wave power, a machine that uses the motion of ocean waves to generate electricity; Wave pool, a machine that generates waves in a pool to simulate the ocean; Shive wave machine, a wave generator that illustrates wave motion using steel rods and a thin wire; Column wave, a theatrical device used to simulate the look of the ocean on stage
The standard interpretation of this is as a stream of particles being fired at the step from the left (the direction of negative x): setting A r = 1 corresponds to firing particles singly; the terms containing A r and C r signify motion to the right, while A l and C l – to the left.
Mathematically, the simplest kind of transverse wave is a plane linearly polarized sinusoidal one. "Plane" here means that the direction of propagation is unchanging and the same over the whole medium; "linearly polarized" means that the direction of displacement too is unchanging and the same over the whole medium; and the magnitude of the displacement is a sinusoidal function only of time ...
De Broglie, in his 1924 PhD thesis, [8] proposed that just as light has both wave-like and particle-like properties, electrons also have wave-like properties. His thesis started from the hypothesis, "that to each portion of energy with a proper mass m 0 one may associate a periodic phenomenon of the frequency ν 0 , such that one finds: hν 0 ...
Mathematically, the simplest wave is a sinusoidal plane wave in which at any point the field experiences simple harmonic motion at one frequency. In linear media, complicated waves can generally be decomposed as the sum of many sinusoidal plane waves having different directions of propagation and/or different frequencies .
The wave equation is a second-order linear partial differential equation for the description of waves or standing wave fields such as mechanical waves (e.g. water waves, sound waves and seismic waves) or electromagnetic waves (including light waves).
Alpha waves . Alpha waves, or the alpha rhythm, are neural oscillations in the frequency range of 8–12 Hz [1] [2] likely originating from the synchronous and coherent (in phase or constructive) neocortical neuronal electrical activity possibly involving thalamic pacemaker cells.