There are some shellfish living in the ocean, which evolved to defend themselves against natural enemies, such as clams and conches. Friends who often live at the beach should be familiar with these two creatures, and they should be familiar with them. Friends who live inland are also full of curiosity about these marine creatures. Many friends who come to the beach to travel will take these shells home. , made into some decorative ornaments. When the wind blows, these shells collide with each other and make a beautiful sound.

When you put these shells to your ears, you will hear a beautiful sound, like the waves of the sea. So why does this phenomenon occur? Is there really a sea inside the shells picked up at the beach? In fact, there is a clear scientific explanation for this phenomenon.

Physically speaking, when we put a shell next to our ear, when the frequency of vibration or sound outside the back shell is the same as the frequency inside the shell, a ** will occur. *Singing sound, after this *singing sound is amplified, this is the sound we hear in our ears. In fact, this kind of sound similar to ocean waves occurs not only in shells, but also in some bottles or empty paper shells covering the ears.

After the air enters the shell, it will produce such vibrations and the vibrating sound is very similar to the sound of ocean waves, so we all think that what we hear in the shell is the sound of ocean waves. . Some people say it is the sound of waves, others say it is a product left over from ancient times, but this is just a guess. In fact, this is a very normal phenomenon, not just shells, but many objects can achieve it. This phenomenon.

In science, some people say that the sound we hear inside the shell is actually the sound of blood flowing in our own blood vessels. This has also been confirmed scientifically. When the hollow object of the shell is close to When we touch our ears, the sound of blood flow will be continuously amplified and re-amplified through echoes. When it is introduced into our ears, we will hear a sound similar to the lapping of waves. It can be heard with any cup-shaped object. Such effect.

Many people are still willing to associate shells with some beautiful fairy tales. The sound heard in the shells is the lapping of the waves. Who would have thought that these mollusk shells in the ocean hold such great mysteries? Have you ever tried them?