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Bill Crawley Reference librarian Illinois Central College According to the Oxford English Dictionary... The action of rarefying, or process of being rarefied; diminution of density. (Now chiefly of the air or gases, or Path. of bones.) 1603 HOLLAND Plutarch's Mor. 1318 To clense and purifie the aire by this rarefaction and subtilization. 1626BACON Sylva §30 In Gunpowder, the Force of it hath been ascribed to Rarefaction of the Earthy Substance into Flame. 1707 FLOYER Physic. Pulse-Watch 69 In those Persons who have the best Tempers, the Blood and Spirits have a moderate Rarifaction. 1869 E. A. PARKES Pract. Hygiene (ed. 3) 466 In ascending mountains there is rarefaction, i.e. lessened pressure of air. 1898 Allbutt's Syst. Med. V. 605 In others there is..thickening or rarefaction of skull bones.
fig. 1672 MARVELL Reh. Transp. (1675) II. 249 Lest they [laws]..lose in strength what they gain by extension and rarefaction. 1873 SYMONDS Grk. Poets vi. 171 Arriving at monotheism by a process of rarefaction and purification. b. With a and pl. An instance of this. 1834 M. SOMERVILLE Connex. Phys. Sc. xvi. (1849) 144 A regular series of condensations and rarefactions. 1873 W. LEES Acoustics I. i. 10 An undulation or wave..consists of two partsa condensation and a rarefaction.
What else can I help you with?
What is rarefacation?
Rarefaction is the process of decreasing the density of a substance or the reduction of pressure in a medium. In terms of sound waves, rarefaction refers to the region in a longitudinal wave where the particles are spread apart. It is the opposite of compression in a wave.
Does Rarefaction refer to the compression of air molecules?
No, rarefaction is the reduction in density of a gas or fluid, while compression refers to the increase in density. Rarefaction occurs when particles are spread apart, leading to a decrease in pressure and density.
What is the area of compression and rarefaction?
Compression is a Pushing Force whereas Rarefaction is a Pulling Force[Compression is the point when the most force is being applied to a molecule&Rarefaction is the point when the least force is applied].Compression happens when particles are forced/pressed together.Rarefaction is just the opposite,it occurs when particles are given extra space&allowed to expand.Compression&Rarefaction are Effects the wave causes.If you look at any normal visual representation of a Sound Wave,the humps above the middle line are called Compressions,the humps below are called Rarefactions.
Where is a place where molecules are far apart?
In outer space, molecules are spread far apart due to the vast distances between objects. The vacuum of space allows for molecules to exist at extremely low densities.
Did the compression and rarefaction occur at same time?
Compression and rarefaction occur simultaneously in a wave. In the context of sound waves, as a compression phase pushes air molecules together, a rarefaction phase follows where the molecules are spread apart. This alternating pattern of high and low pressure travels through the medium, resulting in the propagation of the wave. Thus, while they represent opposite phases, they are part of the same continuous wave cycle occurring together.
What of a sound wave is the distance between a compression or rarefaction and the next compression or rarefaction?
The wavelength of a sound wave is the distance between a compression (high pressure) or rarefaction (low pressure) and the next compression or rarefaction. It is the physical length of one cycle of the wave and is typically measured in meters.
A region of spread out particles ina compressional wave is called?
I believe you are referring to rarefaction. The "trough" of a compression / rarefaction wave is called rarefaction.
What rhymes with rarefaction?
There are no perfect rhymes for the word rarefaction.
Molecules are farther apart in a rarefaction reflection compression or refraction?
Rarefaction.
Rarefaction occurs only in?
Rarefaction occurs in longitudinal waves when the particles in the medium are spread further apart, resulting in a decrease in density and pressure. This phenomenon is typically observed in sound waves as they travel through a medium.
What types of wave does rarefaction and compression?
this kind of wave that includes compressional and rarefaction is called a longitudinal wave.
What is the opposite of rarefaction?
compression
What is difference between crest and rarefaction?
A crest is the highest point of a wave, while a rarefaction is the lowest point of a wave. In other words, the crest is the peak of the wave, and the rarefaction is the trough or dip. Together, the crest and rarefaction make up the waveform of a wave.
What is rarefacation?
Rarefaction is the process of decreasing the density of a substance or the reduction of pressure in a medium. In terms of sound waves, rarefaction refers to the region in a longitudinal wave where the particles are spread apart. It is the opposite of compression in a wave.
Why is produced rarefaction and condensation during the sound travlling in the medium?
Why is produced rarefaction and condensation during the sound travelling in the medium?
Does Rarefaction refer to the compression of air molecules?
No, rarefaction is the reduction in density of a gas or fluid, while compression refers to the increase in density. Rarefaction occurs when particles are spread apart, leading to a decrease in pressure and density.
The less dense region of a compression wave is called?
The less dense areas created as a sound wave propagates are called rarefactions.
