Vibration is a Chinese word, but it is more often used in physical discussions. The word shaking, which is more common in life. In film and television works, it can often be seen. The word shock emphasizes the impact on oneself to a very deep degree. In the Chinese vocabulary, there is also a formation. It means movement, which is a shaking.

Vibration is the way sound is produced, and not all sound is produced by vibration. Collisions can also produce sound, but not vibrations.

Musical instruments are made using the principle of vibration sound. The drum uses the vibration of the drum surface to achieve the purpose of sound, while the qin uses the back and forth of the strings to produce sound. The bells of the Warring States period appear by striking them with small metal rods.

Using the principle of vibration, many instruments can be made. Vibrating screens are one of them.

The water has waves, but there is a stop. Though I have a thousand words in my heart, I must suppress them. Because this discussion is not for me alone, but for everyone. So, I hid the words in my heart. I'll say it again when I have the opportunity in the future. Then, it's time for you to stir up the waves. Water says.

We know that free vibration means that vibration is not affected by resistance, but we know that this is not possible. Resistance must be there, vibration must be attenuated. Therefore, vibration is attenuation vibration.

I think that the coefficient of drag and the coefficient of elasticity of the spring should affect each other. Just like the relationship between the elasticity coefficient and the celiality coefficient, they are inversely correlated. Six said.

Any vibration will be resisted, so there must be attenuation. Therefore, forcing vibrations is attenuating vibrations.

Is there a difference between a modulus in impedance and a modulus on a ring? The modulus in the impedance is the same as the modulus in the vector, but the modulus on the ring is a structure. Therefore, they are different. Du said.

Why does a prime frequency avoid resonance? Actually, there is a certain law in the number system of prime numbers. In the physical world, there is a certain law of nature. This law results in the fact that the prime number frequency is not so easy to form, so resonances can be avoided.

Are the oscillators of the vocal cords all pointing in one direction? Where do you might say where do the vocal cords come from? In fact, you can think of the vocal cords as non-two-dimensional particles. And the vibration of the vocal cords is the vibration of these particles. Or to put it another way, if there is a group of oscillators vibrating, what direction will the vibrating system eventually exhibit? That is, does the individual have to be subordinate to the whole? For example, people don't usually move, but the molecules in the body do. This is said to be yin, and the individual does not have to obey the whole. There is a term for average density in fluid mechanics, so can we also think that the vibration of a vibrating system is an average vibration? Or is it superimposed vibrations? According to common sense, the individual should be subordinate to the whole. Since the whole is in this direction, then the individual should be in this direction. However, this is not the case. For example, strings. To be sure, the strings must vibrate upwards or downwards, and so should the particles on the strings. But is that really the case? We know that strings are bent when they vibrate, which causes different particles to vibrate. Of course, this can only be done differently in amplitude, not in direction. If the direction of the particles is the same, then the particles at both ends should vibrate even if the energy is attenuated as it spreads from the bend point to both sides. However, this is not the case. We don't see the vibrations that are manifest, so what do we say? It is likely that the two particles vibrate in the same direction to a large extent, canceling out most of each other's energy. Therefore, the direction of the oscillator does not have to be the same as the direction of the vibrating system. Margarita said.