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Rarefaction is the reduction of an item's density, the opposite of compression. [1] Like compression, which can travel in waves ( sound waves , for instance), rarefaction waves also exist in nature. A common rarefaction wave is the area of low relative pressure following a shock wave (see picture).
In ecology, rarefaction is a technique to assess species richness from the results of sampling. Rarefaction allows the calculation of species richness for a given number of individual samples, based on the construction of so-called rarefaction curves. This curve is a plot of the number of species as a function of the number of samples.
The rarefaction is the farthest distance apart in the longitudinal wave and the compression is the closest distance together. The speed of the longitudinal wave is increased in higher index of refraction, due to the closer proximity of the atoms in the medium that is being compressed.
"Longitudinal waves" and "transverse waves" have been abbreviated by some authors as "L-waves" and "T-waves", respectively, for their own convenience. [1] While these two abbreviations have specific meanings in seismology (L-wave for Love wave [2] or long wave [3]) and electrocardiography (see T wave), some authors chose to use "ℓ-waves" (lowercase 'L') and "t-waves" instead, although they ...
Matter changes through rarefaction and condensation Anaximenes of Miletus ( / ˌ æ n æ k ˈ s ɪ m ə ˌ n iː z / ; Ancient Greek : Ἀναξιμένης ὁ Μιλήσιος , romanized : Anaximenēs ho Milēsios ; c. 586/585 – c. 526/525 BC ) was an Ancient Greek , Pre-Socratic philosopher from Miletus in Anatolia (modern-day Turkey ).
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Magnetosonic waves are a type of low-frequency wave present in electrically conducting, magnetized fluids, such as plasmas and liquid metals.They exist at frequencies far below the cyclotron and plasma frequencies of both ions and electrons in the medium (see Plasma parameters § Frequencies).
Tyler. Another name that exploded in popularity during the 1990s, Tyler is an English name with a literal meaning: "maker of tiles." In the 1990s, just over 262,000 Tylers were born in the United ...