That being the case, let ray ban sunglasses send the prime minister hit the road! Ziwei see bloomer no longer speak, know ray ban sunglasses hopeless situation, has renewed those uninterested tongue anxious, he smiled, lifted his right hand, hastening his last mana, donghuang bell sounded again. The First bell rings when Hyun Mo concussion, while the second tone sunglasses for women when the bell rings, Hyun Mo completely fainted. But, really dizzy over? Only Mo Xuan know that when the second sound the bell rang, ray ban sunglasses it is this mysterious voice into a tremendous state of flux.
What sound ? What is the nature of sound is ? Principles of physics tell ray ban outlet so-called sound vibrations generated by the vibration of the object generated by the source of the sound, and the vibration of the object sent, called sources. As the object vibration in different ways, the sound generated is also not the same, and the same sound effect produced naturally not the same. But, do not, like, nature, or the same. Although no review had been for centuries physics, but this is based on truth, Hyun Mo or understand.
When the sound vibration propagation in air and space temperament point is not to be taken away, just in the vicinity of the original location ray ban sunglasses vibrating back and forth, so the propagation of sound is the transmission of vibration. If the magnitude of the object changes over time of the vibration such as a sine curve, then the vibration is called harmonic vibration, the air surrounding the object for simple harmonic motion as Simple arrangements have particle vibration. Object distance from the rest canadian goose sale position, said displacement x, called the maximum displacement amplitude α, the relationship between displacement and time harmonic vibration is expressed as x = αsin (2πft + φ), where f is the frequency, (2πft + φ) is called harmonic vibration the phase angle, the object is to determine the state of motion ray ban sunglasses important physical amplitude α determines the size of the strength of the sound.
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