Definitions for S-wave
s-wave

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1. S-wavenoun

   A transverse, shear wave, such as that produced by an earthquake. Movement is transverse to the direction of propagation and is a body wave

2. Etymology: From "secondary wave" or "shear wave"

WikipediaRate this definition:0.0 / 0 votes

1. s-wave

   In seismology and other areas involving elastic waves, S waves, secondary waves, or shear waves (sometimes called elastic S waves) are a type of elastic wave and are one of the two main types of elastic body waves, so named because they move through the body of an object, unlike surface waves.S waves are transverse waves, meaning that the direction of particle motion of a S wave is perpendicular to the direction of wave propagation, and the main restoring force comes from shear stress. Therefore, S waves cannot propagate in liquids with zero (or very low) viscosity; however, they may propagate in liquids with high viscosity.The name secondary wave comes from the fact that they are the second type of wave to be detected by an earthquake seismograph, after the compressional primary wave, or P wave, because S waves travel more slowly in solids. Unlike P waves, S waves cannot travel through the molten outer core of the Earth, and this causes a shadow zone for S waves opposite to their origin. They can still propagate through the solid inner core: when a P wave strikes the boundary of molten and solid cores at an oblique angle, S waves will form and propagate in the solid medium. When these S waves hit the boundary again at an oblique angle, they will in turn create P waves that propagate through the liquid medium. This property allows seismologists to determine some physical properties of the Earth's inner core.

WikidataRate this definition:3.0 / 4 votes

1. S-wave

   A type of elastic wave, the S-wave, secondary wave, or shear wave is one of the two main types of elastic body waves, so named because they move through the body of an object, unlike surface waves. The S-wave moves as a shear or transverse wave, so motion is perpendicular to the direction of wave propagation: S-waves are like waves in a rope, as opposed to waves moving through a slinky, the P-wave. The wave moves through elastic media, and the main restoring force comes from shear effects. These waves do not diverge, and they obey the continuity equation for incompressible media: Its name, S for secondary, comes from the fact that it is the second direct arrival on an earthquake seismogram, after the compressional primary wave, or P-wave, because S-waves travel slower in rock. Unlike the P-wave, the S-wave cannot travel through the molten outer core of the Earth, and this causes a shadow zone for S-waves opposite to where they originate. They can still appear in the solid inner core: when a P-wave strikes the boundary of molten and solid cores, called the Lehmann discontinuity, S-waves will then propagate in the solid medium. And when the S-waves hit the boundary again they will in turn create P-waves. This property allows seismologists to determine the nature of the inner core.

Anagrams for S-wave »

1. waves

How to pronounce S-wave?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

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   Australian

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   Indian

   Priya

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   Neerja

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   Zira

   US English

   Oliver

   British

   Wendy

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   Tessa

   South African

How to say S-wave in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of S-wave in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of S-wave in Pythagorean Numerology is: 7

Examples of S-wave in a Sentence

1. Robert Redfield:

   That is why it's so important for Middle America to recognize the mitigation that we talked about... it's for Middle America too, the Nebraskas, the Oklahomas, we don't need to have a third wave in the heartland right now.

2. Barack Obama:

   You have to step back and say you have to look at statistics. 2014 was a historic low in violent crime, if there's a spike in some cities, that's something we have to take seriously and pay attention to, but it certainly doesn't suddenly translate into this notion that a crime wave's coming.

3. Massoud Mirkazemi:

   In the presidency it's the individual that is important. Political groups are not important. In reality, an individual can start a wave, whoever can start this wave will get votes. Ahmadinejad has started, and can start this wave.

4. John Boyd:

   In a post-HQ2 environment, you're going to see a new wave of expansions and re-locations over the next 18 months.

5. Dounia Bouzar:

   I tell parents that their children are going to make their way through this difficult moment :' Your child will save others.' I'm sure that their experience will help France in the fight against terror, we are [ part of ] a human chain, and we become a wave, crashing against these ISIS words :' We will win, because we love death more than you love life.' [ But ] WE will win, because life is stronger than death.

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/S-Wave
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/S-Wave
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=S-wave