kundt effect
1Pp-wave spacetime — In general relativity, the pp wave spacetimes, or pp waves for short, are an important family of exact solutions of Einstein s field equation. These solutions model radiation moving at the speed of light. This radiation may consist of:*… …
2sound — sound1 soundable, adj. /sownd/, n. 1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. 2. mechanical vibrations transmitted through an elastic medium, traveling in air at a… …
3Sound — /sownd/, n. The, a strait between SW Sweden and Zealand, connecting the Kattegat and the Baltic. 87 mi. (140 km) long; 3 30 mi. (5 48 km) wide. Swedish and Danish, Oresund. * * * I Mechanical disturbance that propagates as a longitudinal wave… …
4Rainer W. Kühne — (born 1970 May 23) is a German physicist. He presented a theory which is a generalization of quantum electrodynamics (QED). His theory predicts a second kind of photon (the so called magnetic photon ) and a second kind of light (the so called… …
5Jürgen Ehlers — Infobox Scientist box width = 300px name = Jürgen Ehlers caption = At the award ceremony for the Charles University Medal in Potsdam, September 2007 imagesize = 138 birth date = birth date|1929|11|29|mf=y birth place = Hamburg residence = Germany …
6acoustics — /euh kooh stiks/, n. 1. (used with a sing. v.) Physics. the branch of physics that deals with sound and sound waves. 2. (used with a pl. v.) the qualities or characteristics of a room, auditorium, stadium, etc., that determine the audibility or… …
7Wilhelm Röntgen — Wilhelm Conrad Röntgen Born Wilhelm Conrad Röntgen 27 March 1845(1845 03 27) Lennep, Germany …
8Speed of sound — Sound is a vibration that travels through an elastic medium as a wave. The speed of sound describes how much distance such a wave travels in a certain amount of time. In SI Units with dry air at 20 °C (68 °F), the speed of sound is 343 m/s. This… …
9Contributors to general relativity — General relativity Introduction Mathematical formulation Resources Fundamental concepts …
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