What is social phobia? Detailed answer

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What is social phobia? Detailed answer

Big encyclopedia for children and adults

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What is social phobia?

This is the scientific name for shyness. Those suffering from this syndrome are more likely to get a heart attack. It has recently become clear that shyness can be treated with medication.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

When did the first fire brigades appear?

Man has always known that fire can be a friend and helper, but it can also be a great destroyer. Primitive man, however, did not have the problem of fighting fire as we do, simply because he did not live in houses that were grouped together, in other words, in villages, towns and cities. But when people began to live together in large groups, they had to face the problem of fighting fire. And long before our era, fire brigades were organized. They existed in many cities of the world.

The ancient Romans had fire brigades to protect cities and used slaves to put out fires. By the way, the Romans invented the first means of extinguishing fires with a continuous jet of water. Roman firefighters used axes, buckets, ladders and hooks. In the Middle Ages, firefighters were organized in some places, but it was not very effective.

It is known that firefighters appeared in England. This was because fire insurance companies were organized, and of course they were interested in reducing losses from fires and sought to prevent their spread. The authorities in London did nothing to solve this problem, so the insurance companies organized their own fire brigades. Probably, the first such brigade was organized in 1722, and then others appeared. These insurance companies put special fire signs on the buildings they insured and didn't care much about the other houses.

In 1833, the organized fire system of the City of London was established for the first time. In the United States, as in most parts of the world, prior to the establishment of fire brigades by local governments in towns and cities, residents themselves organized volunteer fire brigades. In fact, firefighting is still done mostly by volunteers. There are about 1 million firefighters in the US, and only one in ten is paid for this job.

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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. ... >>

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Random news from the Archive

Local area network for a quantum computer 05.03.2020

The bulky cryogenic systems of modern quantum computers, by definition, cannot accommodate hundreds or more qubits. The system will turn out to be too large - the size of a room or even a house. The solution may be the creation of clusters. It remains to solve the problem of network connection of systems in a cluster with the preservation of quantum entanglement. To do this, physicists from Zurich were able to create an experimental quantum local area network.

A group of physicists from the ETH Zurich (ETH Zurich) has demonstrated a microwave quantum line five meters long. It is the longest line of its kind to date. It can be used both for future quantum computer networks and for experiments in the field of fundamental research in quantum physics.

The microwave line is a metal waveguide between two quantum processors. Like quantum processors, the waveguide is cooled by liquid helium to a temperature of -273,15 °C. The waveguide is separated from the external environment by a multilayer copper casing, the weight of which is a quarter of a ton. This allows you to keep the temperature at the required low level. Such low temperatures are needed in order to eliminate thermal perturbations that violate the state of superposition of quanta and lead to errors in calculations.

A communication line between quantum processors is necessary to exchange superposition states between them or to create entanglement so that a quantum cluster works as a single quantum computer. Entanglement is carried out with the help of photons of microwave radiation. The generator in one system emits a photon, which overcomes the distance through the waveguide and is received by the second system. Experiments with a 5-meter microwave line showed that in the process of photon transmission, qubits in coupled systems were subjected to minimal decoherence (mismatch).

In parallel, physicists have created a 10-meter and plan to create a 30-meter line of quantum communication. A line 10 meters long has already been created and tested by cooling, but no experiments have been made on it yet. A 30 meters long line will be created later. If the same design of the heat-insulating casing is implemented, then one and a half tons of copper will be needed for it. Obviously, there is still work to be done on the thermal insulation scheme.

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