Why do boys lose their voices? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

Why do boys lose their voices? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

Why do boys lose their voices?

In order for what is called a "voice" to appear, three factors must be involved. The first is the vocal cords, which vibrate at the same time. The second is air, which is normally used for breathing, but is now used as a source of energy, causing the cords to vibrate. And, finally, the third is the oral cavity, pharynx and, in order to amplify (resonate) sounds, the nasal cavity. The vocal cords are located in the larynx. The voice has volume, pitch and quality.

Loudness is related to the greater or lesser intensity of the airflow causing the cords to vibrate, and to the type of amplification of the resulting sound. The vibration of the cords produces a vocal tone. The pitch of the voice is related to the length, thickness, and tension of the vocal cords. After we have considered how the voice is produced, we can understand why it changes in boys at a certain age. The child's larynx is small and has short vocal cords. When they vibrate, short waves are produced, and the result is a high-pitched voice.

During puberty, the larynx begins to grow and the vocal cords lengthen. And it is from this that the voice changes: it becomes lower. Boys usually grow so fast and the vocal mechanisms of the larynx change so dramatically that their owners cannot immediately adapt to this and therefore often lose control of their voice. In this case, people usually say that the boy's voice is breaking. This happens to boys, not girls, because men's vocal cords are almost one-quarter longer than women's.

Girls' vocal cords don't grow as much or as fast. Since the overall pitch of an adult's voice depends on the length of the vocal cords, everyone's voice has a specific range that allows it to be classified as bass, baritone, tenor, soprano, and so on.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What is tin-lead alloy?

First, an alloy is a metal that results from mixing several metals during smelting. The basis of the tin-lead alloy is tin. It is usually mixed with lead in the following proportions: 6 or 4 parts of tin to 1 part of lead. Such an alloy has been produced for thousands of years, although it is difficult to give a more precise date. It is said to have been known to the ancient Chinese, Egyptians and Greeks. The ancient Romans also made it.

Usually the mention of the tin-lead alloy is associated with England, and there is a reason for this. In Cornwall there were mines with deposits of high quality tin. England has been smelting it since ancient times, and tin from Cornwall has been used to make such alloys in other parts of Europe. Tin-lead alloy was used for three main purposes: for the manufacture of church utensils, for domestic use and for public use. Communion bowls made from a pewter-lead alloy have been used in church services in England since the Middle Ages. In England, this alloy began to be widely used for the manufacture of plates and cups.

But over time, the rich began to prefer silverware, and the middle classes used a tin-lead alloy instead of silver.

In France, this alloy has been used to make glasses and goblets, plates, salt shakers and pots since the XNUMXth century.

In Germany, the industrial production of tin-lead alloy arose in the XIV century, and almost at the same time it began to be smelted in Belgium, Holland, Switzerland, Russia and the Scandinavian countries.

In the United States during the early colonial period, it was used more for household purposes. Some items date back to the 1750th century, but the largest amount of alloy was produced between 1850 and 1000, when it was used to make any household utensils. Tin-lead alloy was smelted in China, Korea and Japan more than XNUMX years ago.

Test your knowledge! Did you know...

▪ How is gold found?

▪ Can birds smell?

▪ Why don't hedgehogs, contrary to children's drawings, carry apples on their backs?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

5G on Everest 07.05.2020

Huawei and China Mobile have installed three 5G base stations on the northern slope of the world's highest mountain, along the Sino-Nepalese border.

Stations are installed in climbing camps at altitudes of 5300, 5800 and 6500 meters. For their installation, China Mobile sent 150 of its employees to Everest, who, in the course of the work, laid 25 kilometers of fiber optic cable along the mountain.

The equipment is intended primarily for measuring Everest, but scientists and climbers will also be able to use the network - for communication, as well as, for example, for live broadcasting of high-definition video. And those who rise to the top will no longer have to take heavy satellite telephony devices with them.

The pleasure, however, promises to be short-lived. After the completion of the measuring work, the companies intend to dismantle the equipment - even before the end of this year. But for now, the 5G station, installed at an altitude of 6500 meters, remains the highest in the world.

Other interesting news:

▪ Honeywell and Crossbow create wireless measurement products

▪ Coffee reduces the risk of liver disease

▪ Dinosaur blood vessels

▪ Mammoth put a thermometer

▪ The radioisotope method misled scientists

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Spy stuff. Article selection

▪ article Clamp for a skein. Tips for the home master

▪ article When did furniture first appear? Detailed answer

▪ article Mechanic for the repair of fuel supply equipment. Job description

▪ article LED car strobe. Encyclopedia of radio electronics and electrical engineering

▪ article Dressed scarf. Focus Secret

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews