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Lamb waves propagate in solid plates or spheres. [1] They are elastic waves whose particle motion lies in the plane that contains the direction of wave propagation and the direction perpendicular to the plate. In 1917, the English mathematician Horace Lamb published his classic analysis and description of acoustic waves of this type. Their ...
The energy difference Lamb and Retherford found was a rise of about 1000 MHz (0.03 cm −1) of the 2 S 1/2 level above the 2 P 1/2 level. This particular difference is a one-loop effect of quantum electrodynamics , and can be interpreted as the influence of virtual photons that have been emitted and re-absorbed by the atom.
Although the inertia and drag coefficients can be tuned to give the correct extreme values of the force. [8] Third, when extended to orbital flow which is a case of non uni-directional flow, for instance encountered by a horizontal cylinder under waves, the Morison equation does not give a good representation of the forces as a function of time ...
Like light waves, inertial waves are transverse, which means that their vibrations occur perpendicular to the direction of wave travel. One peculiar geometrical characteristic of inertial waves is that their phase velocity , which describes the movement of the crests and troughs of the wave, is perpendicular to their group velocity , which is a ...
Rayleigh waves are distinct from other types of surface or guided acoustic waves such as Love waves or Lamb waves, both being types of guided waves supported by a layer, or longitudinal and shear waves, that travel in the bulk. Rayleigh waves have a speed slightly less than shear waves by a factor dependent on the elastic constants of the ...
In fluid dynamics, Lamb vector is the cross product of vorticity vector and velocity vector of the flow field, named after the physicist Horace Lamb. [ 1 ] [ 2 ] The Lamb vector is defined as l = u × ω {\displaystyle \mathbf {l} =\mathbf {u} \times {\boldsymbol {\omega }}}
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This ensures agreement with theory and experiment, up to but not including the Lamb shift. Numerical solutions for the classical problem were also found. [23] Furthermore, Moore showed that a model by Feynman and Albert Hibbs is amenable to the methods of higher than first-order Lagrangians and revealed chaotic-like solutions. [24]