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| the elasticlike force existing in the surface of a liquid caused by asymmetries in the intermolecular forces between surface molecules |
| a progressive disturbance propagated in a medium without progress or advance by the points themselves, as in the transmission of sound or light |
| Compton effect
An increase in the wavelength of electromagnetic radiation, especially of x-rays or gamma-rays, when the photons constituting the radiation collide with free electrons. As a result of the Compton effect, the photons transfer some of their energy to the electrons. It is mainly through the Compton effect that matter absorbs radiant energy. |