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In physics, a shock wave (also spelled shockwave), or shock, is a type of propagating disturbance that moves faster than the local speed of sound in the medium. Like an ordinary wave, a shock wave carries energy and can propagate through a medium, but is characterized by an abrupt, nearly discontinuous, change in pressure , temperature , and ...
One approach to doing so was by calque from the original (often German or Yiddish) surname. For instance, Imi Lichtenfield (itself a half-calque [definition needed]), founder of the martial art Krav Maga, became Imi Sde-Or. Both last names mean "light field". For more examples and other approaches, see the article on Hebraization of surnames.
This page was last edited on 22 June 2012, at 16:06 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Shockwave (comics), a comic book character in Marvel Comics; Shockwave (G.I. Joe), a 1988 toy/action figure (and later comic book character) Shockwave (Transformers), a comic book character; Shock Wave, a 1996 novel written by Clive Cussler; Shockwave, the novelization of the Star Trek: Enterprise episode, see List of Star Trek: Enterprise novels
Transonic (or transsonic) flow is air flowing around an object at a speed that generates regions of both subsonic and supersonic airflow around that object. [1] The exact range of speeds depends on the object's critical Mach number, but transonic flow is seen at flight speeds close to the speed of sound (343 m/s at sea level), typically between Mach 0.8 and 1.2.
Google Dictionary is an online dictionary service of Google that can be accessed with the "define" operator and other similar phrases [note 1] in Google Search. [2] It is also available in Google Translate and as a Google Chrome extension. The dictionary content is licensed from Oxford University Press's Oxford Languages. [3]
The same term can also be used more informally to refer to something "standard" or "classic". For example, one might say that Euclid's proof is the "canonical proof" of the infinitude of primes. There are two canonical proofs that are always used to show non-mathematicians what a mathematical proof is like:
The defining criterion of a shock wave is that the bulk velocity of the plasma drops from "supersonic" to "subsonic", where the speed of sound c s is defined by = / where is the ratio of specific heats, is the pressure, and is the density of the plasma.