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sympathetic vibration

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sympathetic vibration [‚sim·pə′thed·ik vī′brā·shən]
(physics)
The driving of a mechanical or acoustical system at its resonant frequency by energy from an adjacent system vibrating at the same frequency.

Sympathetic vibration

The driving of a mechanical or acoustical system at its resonant frequency by energy from an adjacent system vibrating at this same frequency. Examples include the vibration of wall panels by sounds issuing from a loudspeaker, vibration of machinery components at specific frequencies as the speed of a motor increases, and the use of tuned air resonators under the bars of a xylophone to enhance the acoustic output. Increasing the damping of a vibrating system will decrease the amplitude of its sympathetic vibration but at the same time widen the band of frequencies over which it will partake of sympathetic vibration. See Resonance (acoustics and mechanics), Vibration



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These earliest calls were called tongue pinchers because their construction, similar to a modern crow call, caused a sympathetic vibration that felt like an electric shock to the tip of the tongue.
The results may land her a spot on the Oscar short list, but they make for a performance that rattles the celluloid without triggering sympathetic vibrations in viewers' emotions.
They are looking for companies and offerings that strike a sympathetic vibration inside them, that chord that says: "Yes, this is who I am.
 
 
 
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