Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


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

Do I need to retrain the left-hander? Detailed answer

Big encyclopedia for children and adults

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

Comments on the article Comments on the article

Did you know?

Do I need to retrain the left-hander?

If you are left-handed or know any of them, you have noticed that left-handed people have to adjust to life in this world, since we live in a right-handed world. 96 percent of people are right-handed, and naturally everything from doorknobs, locks, screwdrivers, cars, musical instruments, and cars to little things like the buttons on our clothes are designed for right-handed people. However, most left-handed people seem to get on pretty well. And of course, there are examples of left-handers who have achieved a lot in life.

For example, Leonardo da Vinci and Michelangelo, two of the world's greatest geniuses, were left-handed. While some parents get upset if their kids are left-handed, most medical authorities think it's wiser not to fix anything. The best development of the left hand is not a human defect, so the child should not be scolded or punished, and no effort should be made to try to turn him into a right-handed one. This is the opinion of the authorities.

So what makes most people right-handed? For a long time, we were thought to be right-handed because of things like training, tradition, and as a result, most people are right-handed. Therefore, it was believed that something was wrong with the left-hander, because they could not do things the way others do. Today it is believed that most people are right-handed, because the brain of most people functions in a certain direction. One half of the brain dominates the other half. The left hemisphere of the brain controls the functions of the right side of the body, and the right hemisphere of the brain controls the functions of the left side of the body. And in most people, the left hemisphere of the brain dominates, so the right half of their body is more skilled and better developed.

Our right hand works better than our left hand. Left-handers have the brain developed in the opposite direction. The right hemisphere of the brain is dominant, so the left half of the body works better. She works just as well, just as skillfully. It is pure coincidence that they are left-handed. And don't make a problem out of it!

Author: Likum A.

 Random interesting fact from the Great Encyclopedia:

How do bees communicate?

When a worker bee finds a flower with nectar, how does she communicate it to others? How does she convey to them what kind of flower it is, how far away it is, and in what direction?

The way in which bees communicate this information is one of the most amazing wonders of nature. To begin with, let's say that the language of bees is an instinct. They do not learn it, but simply, having reached a certain age, they automatically master it.

Bee language is the language of smells and dances. When the bee discovers nectar or pollen, it returns home and starts dancing, describing regular circles one after another. The dance draws the attention of other bees and tells them where the nectar or pollen was found. Other bees by the smell of the returnee can find out what she has found.

If the bee dances animatedly, it means that a large amount of food has been found, and many bees fly away to search. Thus, the bee can report several things. From the dance, you can determine whether nectar or pollen has been found. By the smell of the bee itself, you can tell which flower to look for. The slowness of the dance speaks to the quantities of food found.

But all this applies only to flowers located within 100 meters of the hive. When the bee finds the desired plant farther away, when it returns home, it shows a different kind of dance. Instead of describing circles, she moves in a figure eight, connecting two loops with a straight line, while swinging her abdomen from side to side.

In addition to the previous information, this dance tells the bees how far and in which direction to fly. The number of rotations per minute indicates the distance. The farther, the less eights are described. For example, 11 rotations per minute is equivalent to a distance of 2700 m. The line along which the bee walks between the two loops of the eight shows the exact direction. The line is determined by the position of the sun in the sky, so other bees can immediately determine the correct angle!

 Test your knowledge! Did you know...

▪ What is a talisman stone?

▪ Where was the guillotine invented?

▪ What Olympic champion did not know that she was participating in the Olympics?

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

The aging molecule found 05.01.2019

According to scientists from the University of Michigan, the key to aging lies right below us. Researchers have discovered a special molecule in roundworms that is extremely closely related to the aging process.

Scientists have found the molecule responsible for the aging process in the species C. elegans. Initially, the researchers studied a number of age-related changes in worm motility. It turns out that the lowest level of mobility in worms occurs closer to the "average" age of the worms. Usually, the life span of C. elegans is no more than 22 days, and a change in activity was observed on the 11-12th day.

In the course of studying the connections between motor neurons and active muscle neurons, it was possible to find out that the SLO-1 molecule prevents the interaction between them. Its appearance led to a decrease in activity and further degradation of motor function.

The researchers decided to try to block this molecule in two different ways. The first method was genome editing, and the second method was the use of paxillin, which blocked the channels involved in the creation of SLO-1. Both methods gave a positive result, but the second method, for obvious reasons, became more preferable.

As a result, the researchers found an increase in life expectancy in the "experimental group" of worms. But the main result of the study is that a similar molecule is present in other living beings, including mammals.

Other interesting news:

▪ Electromechanical bandage

▪ Reliable black box cameras

▪ New voltage references

▪ Walruses do not have enough space in the sea

▪ Used medical masks for road construction

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ site section Tone and volume controls. Article selection

▪ article by Siddhartha Gautama (Buddha). Famous aphorisms

▪ article What is cloning? Detailed answer

▪ article Lycium vulgaris. Legends, cultivation, methods of application

▪ article Clock for automatic device management. Encyclopedia of radio electronics and electrical engineering

▪ article Laptop power adapter in the car. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

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

www.diagram.com.ua

www.diagram.com.ua
2000-2024