Tip 1: Why in the sea shells can you hear the sound of the sea
Tip 1: Why in the sea shells can you hear the sound of the sea
It is believed that in the shell you can hear the noisesea surf if you bring it to your ear. And the more ornate the shape of the shell, the louder and stronger the waves will be. However, this is another misconception. In the shell you hear not the sound of the sea.
There are several hypotheses at once"Sea noise" in shells. One of them says that a person hears the sounds of blood circulation through the vessels of the head. However, this theory is incorrect, and it is easy to prove. It is known that after intensive workings, the blood begins to move at a faster rate, so the sound must also change. However, if you bring the cockleshell to your ear, you will hear the same "noise of the sea." The following theory can be formulated as follows: the shells are noisy due to the movement of air currents through them. This explains why sounds sound louder if you bring the shell close to your ear, and quieter if you keep it at a distance. However, this hypothesis was also refuted by scientists. In a soundproof room, despite the fact that there is air in it, the shell "sea sounds" does not emit. In fact, "the sound of the sea" in the shell is nothing but a few altered sounds of the environment reflected from the walls of the shell. You can take any empty vessel, attach it to your ear and it will become "noisy" no worse than a sea shell. All because any air-enclosed cavity acts as a kind of resonator, where different acoustic waves are concentrated. That is why the shape and size of the shells directly affects the published "sea song". The more curved and more, the more saturated the "surf sound". It turns out that in order to hear the "sea" and refresh your memories of a wonderful summer vacation, you do not need to have a shell at hand. This can be done with the help of improvised items, the same glass. A similar effect will be observed if you fold your palms together with a "boat" and bring it close to your ear. And the more around different sounds, the stronger the sound of waves will be heard. But with the seashell, no doubt, it is more interesting to indulge in memories, especially if it was brought from the beach where you rested.
Tip 2: Why does the sea shell hear the sound of waves
Hundreds of holidaymakers, leaving the seaside,take with them seafood - outlandish shells of mollusks. It is believed that if you attach the cockleshell to your ear, you can hear the sound of waves that will remind you of happy days of rest.
Scientists decided to upset the romantics by debunking the mythabout the sea, splashing inside the shell. In their opinion, the roar of the waves is nothing but the changed sounds of the environment. Shells of different sizes and shapes catch different sounds, so the roar of the sea is always different. The surrounding noise resonates in the shell, changes, "wandering" over the curls, and the person begins to feel that he hears the sounds of the surf. Moreover, the more bizarre the shape of the shell, the more saturated - the sound of the sea. Any closed cavity in which there is air resembles a resonator chamber and concentrates acoustic waves. Similarly, the "sea" can be heard by putting an empty glass to your ear. There are two more hypotheses previously developed by scientists who were called upon to explain the incomprehensible noise in the shell. The first says that a person hears sounds with which blood circulates through his vessels. However, this hypothesis can easily be refuted. It is known that after intensive physical exertion the blood begins to circulate faster. However, if you compare the sound in the shell before and after physical education, you will not find a difference. According to another theory developed by scientists, the sound of the sea is the movement of air currents along the curls of the shell. This hypothesis has also been successfully refuted. The experiment was conducted in a room with excellent sound insulation - the sound of waves in the shell was missing. To hear the sound of the waves, it is not necessary to go to the sea and bring out fine shells. The desired sound will be perfectly heard and in the most trivial things - an empty glass, attached to the ear, an ashtray, a lid from a sugar bowl, and even palms folded by a boat. However, do not give up romance, because only the shell will stir up your memories of the sea.
