Why do Jews try to stretch the wire around the perimeter of the areas where they live? Detailed answer

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

Why do Jews try to stretch the wire around the perimeter of the areas where they live? Detailed answer

Big encyclopedia for children and adults

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

Did you know?

Why do Jews try to stretch the wire around the perimeter of the areas where they live?

In Judaism, it is forbidden to wear things on Shabbat outside one's home, unless the space is surrounded by an eruv, which can be a fence, a city wall, or just a rope stretched around the perimeter. In Israel, an eruv has been built in almost every city or settlement, and eruvs are organized in many Jewish areas in cities around the world. As a rule, these are thin, colorless wires raised to a considerable height, so that passers-by may not notice them at all.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Do raccoons wash their food?

In the 1920s, the word "raccoon" was immediately associated with a raccoon coat. At that time, wearing such a fur coat was very fashionable.

Raccoons are hunted today, of course, but they must be very glad that they have lost their former popularity.

The raccoon is a very brave fighter and has few more enemies besides the human. But if he gets to people while still very young, then he becomes a universal favorite. Animals live from Canada to Panama, except for the high Rocky Mountains.

The length of the animals ranges from 64 to 89 cm, and their weight can reach 11 kg. These mammals live in an area where there is water and trees necessary for their lair. They forage for their food at night - mainly crayfish, mollusks, fish and frogs, but they also eat nuts, berries, fruits and young corn.

The lair where raccoon cubs are born is a hollow in a tree trunk or branch. The female gives birth to cubs once a year, usually there are 4 or 5 of them. When the raccoon family has to move, the female transfers her cubs one by one to a new place. But by autumn they become large enough to start an independent life.

Do raccoons wash their food before eating? Sometimes yes, sometimes no. Most of them prefer to wash their food, and there have even been instances of raccoons throwing their food away if they couldn't find water.

But they don't wash their food to make it clean, because the water is often dirtier than the food itself. Rather, raccoons do not like the process of washing, but simply wet food.

Test your knowledge! Did you know...

▪ How was the glass opened?

▪ Do hyenas laugh?

▪ What were the lives and activities of primitive people?

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

TerraMaster D8 Thunderbolt 3 Storage 11.10.2020

TerraMaster has started selling professional level RAID storage D8 Thunderbolt 3. The manufacturer considers large volume and high data transfer rate - up to 1600 MB/s to the advantages of storage addressed to professionals who create content.

The storage has eight 3,5" or 2,5" SATA drive bays, up to a total capacity of 128TB. The Thunderbolt 3 interface provides high read and write speeds. Of course, the speed depends on the installed drives and array configuration.

Dual Thunderbolt 3 ports let you daisy chain up to five more compatible devices. In particular, you can daisy-chain up to two 4K monitors or one 5K monitor.

For better cooling, the storage case is made of aluminum alloy, and there are two 90mm fans on the back wall. Fans can be turned on at maximum speed, select automatic mode, when the rotation speed depends on temperature, or turn off.

The dimensions of the novelty are 266 x 184 x 315 mm. Price (without drives) - $ 1600.

Other interesting news:

▪ Money with a microchip

▪ Growing stem cells on the ISS

▪ Dragonfly on a microchip

▪ Intel intends to overtake Apple in the tablet market

▪ New Linear DC Regulators

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Personal transport: land, water, air. Article selection

▪ article Eliminate the cause, and the disease will disappear. Popular expression

▪ article What is social phobia? Detailed answer

▪ Diarrhea article. Health care

▪ article Laying wires on rollers. Encyclopedia of radio electronics and electrical engineering

▪ article Tesla transformer power supply with microcontroller control. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

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