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Vibration

vibration

1. The act of vibrating, or the state of being vibrated, or in vibratory motion; quick motion to and fro; oscillation, as of a pendulum or musical string. As a harper lays his open palm Upon his harp, to deaden its vibrations. (Longfellow)

2. (Science: physics) A limited reciprocating motion of a particle of an elastic body or medium in alternately opposite directions from its position of equilibrium, when that equilibrium has been disturbed, as when a stretched cord or other body produces musical notes, or particles of air transmit sounds to the ear. The path of the particle may be in a straight line, in a circular arc, or in any curve whatever.

Vibration and oscillation are both used, in mechanics, of the swinging, or rising and falling, motion of a suspended or balanced body; the latter term more appropriately, as signifying such motion produced by gravity, and of any degree of slowness, while the former applies especially to the quick, short motion to and fro which results from elasticity, or the action of molecular forces among the particles of a body when disturbed from their position of rest, as in a spring. Amplitude of vibration, the maximum displacement of a vibrating particle or body from its position of rest. Phase of vibration, any part of the path des 69d cribed by a particle or body in making a complete vibration, in distinction from other parts, as while moving from one extreme to the other, or on one side of the line of rest, in distinction from the opposite. Two particles are said to be in the same phase when they are moving in the same direction and with the same velocity, or in corresponding parts of their paths.

Origin: L. Vibratio: cf. F. Vibration.


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Effects of variation in Flicker Fusion Thresholds (vision)

... of the above question. Bonus Question: Can the concept of FFR be applied to other senses? E.g a discontinuous sound which sounds continuous, or a vibration that has a frequency high enough to feel still.

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by NMLevesque
Sat Nov 23, 2013 6:47 pm
 
Forum: General Discussion
Topic: Effects of variation in Flicker Fusion Thresholds (vision)
Replies: 0
Views: 664

Theories - Origin of Life

... a weak emission core of the star created a flow of heat through the surface phase transition, and yet not interfere with a certain oscillation - vibration … In general, all this is difficult to discuss now, not yet studied the process of emergence and functioning in a natural cell membrane of ...

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by LeoPol
Sat Mar 03, 2012 8:37 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755822

Theories - Origin of Life

... a weak emission core of the star created a flow of heat through the surface phase transition, and yet not interfere with a certain oscillation - vibration … In general, all this is difficult to discuss now, not yet studied the process of emergence and functioning in a natural cell membrane of ...

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by LeoPol
Thu Feb 23, 2012 11:45 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755822

Theories - Origin of Life

... a weak emission core of the star created a flow of heat through the surface phase transition, and yet not interfere with a certain oscillation - vibration … In general, all this is difficult to discuss now, not yet studied the process of emergence and functioning in a natural cell membrane of ...

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by LeoPol
Fri Jan 06, 2012 9:42 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755822

Voice: Low Atmosphere and Pure Oxygen Effects

... would 100% oxygen and low atmospheric pressure (5 psi) have on human vocal cords/speech? From what I've read, helium produces a high pitch (vibration) effect b/c the mass of helium is much less than nitrogen; however at atmospheric pressures much greater than sea level, speech with helium ...

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by VoiceQ
Wed Sep 23, 2009 7:14 pm
 
Forum: Human Biology
Topic: Voice: Low Atmosphere and Pure Oxygen Effects
Replies: 1
Views: 1361
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