Who are hamsters? Detailed answer

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

Who are hamsters? Detailed answer

Big encyclopedia for children and adults

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

Did you know?

Who are hamsters?

Many children enjoy keeping hamsters and guinea pigs in their homes. These very pleasant and quick-witted rodents are easy to look after. The golden hamster reaches a length of about twelve to fifteen centimeters and weighs from one hundred to one hundred and fifty grams. Its homeland is Europe and Asia.

The English name of this animal "hamster" comes from the German word for "store". This is due to the fact that hamsters in the wild are only engaged in storing food for future use. They stuff their large cheek pouches with food, which they then store in reserve in their burrows dug in the ground.

In the cheek pouches, the hamster can carry away food weighing half his own, to shake these reserves out of his cheeks, the hamster presses them with his front paws and blows hard. He has a plump body and short legs. On the back, thick and soft fur is colored reddish-golden, and on the belly - grayish-white. The hamster is one of the fastest breeding animals.

He has four to five litters a year. The mother takes care of her cubs for about four weeks. When keeping hamsters at home, you need to remember the following: they must be able to move, otherwise they may experience something like paralysis. Therefore, the hamster cage must be equipped with a rotating exercise wheel. And if you don’t have such a wheel in your cage, you need to let the hamster out of the cage more often and allow him to run for exercise.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Why is an area in France called Normandy?

The beginning of the "Viking era", or, as they were called in those days, the Normans, most likely, should be attributed to the end of the XNUMXth century AD. It was at this time from the fjords of Norway and the bays of Denmark that these desperate sailors set off on their first predatory campaigns. The Vikings were the first to cross the Atlantic and established colonies in Iceland and Greenland. In the XNUMXth century, they reached the southern cities of France and the shores of sunny Italy.

In 885, the Norman army captured Rouen and laid siege to Paris. This was not the first siege of this city, so the Parisians, remembering the bitter experience of the past, preferred to pay off the conquerors. The Vikings, being "out of work", moved to the northwestern part of France, where many of them chose to stay permanently. The French king Charles III was forced to leave the territories captured by the Vikings at their mercy. In 911, he granted the Norwegian Rollo a whole province, which still retains the name Normandy.

The Normans were by far the best shipbuilders in Northern Europe. They sailed on boats, which we know about thanks to the Viking custom of burying the dead on ships.

Test your knowledge! Did you know...

▪ Do snails lay eggs?

▪ What is the Castal Key?

▪ What brand of car gave the name to the whole war?

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 existence of a fifth force has not been confirmed 15.09.2019

The fact that the universe is constantly expanding its boundaries has been known to scientists for a long time, but data from the Hubble space telescope, obtained back in the 1990s, indicate that the expansion of the universe is now happening much faster than in the distant past. This fact made a lot of noise at the time, forcing scientists to revise and rebuild all models of the universe. Calculations of the updated models suggested to physicists about the existence of some unknown energy in space, which is precisely responsible for accelerating the expansion of the Universe. This energy was called "dark energy" and now, several decades later, we have only a vague idea of its true nature.

One of the possible explanations for the phenomenon of dark energy is the assumption that this energy is some fifth fundamental force acting on matter along with the forces of gravity, electromagnetism, strong and weak nuclear interactions. And recently, a group of researchers at Imperial College London decided to test this theory thoroughly using a single-atom experiment.

The purpose of this experiment was to investigate the question, does this fifth force weaken with an increase in the amount of matter involved in its formation? This is the exact opposite of the force of gravity, which increases with the mass of matter. If this were the case, then one would expect strong manifestations of the fifth force in the cosmic vacuum and its weakening near even not very large accumulations of matter, such as planets.

To test all of this, the scientists used what's called an atomic interferometer, which can detect and measure any additional forces acting on a single atom. The experiment used a chamber inside which a vacuum of very high depth was created. Inside this vacuum chamber was a metal sphere, and at the top of the chamber was a device that sent individual atoms into free fall. The presence of any fifth force would cause a tiny change in the trajectory of the fall of the atom at the moment when the atom was next to the metal sphere.

However, in the data collected during the experiment, nothing was found regarding the change in the trajectory of the fall of atoms and other evidence of the existence of the fifth fundamental force. This means that physicists can eliminate a whole class of fifth-force models of dark energy and focus on other more promising models that explain this phenomenon.

One of the strengths of this experiment is its simplicity. "It's quite unusual that we're able to learn something new about the structure of the universe using a setup that sits on a table in one of London's cellars," says Ed Hinds, professor in the Department of Physics at Imperial College London.

Other interesting news:

▪ Boat jet engine on outboard water

▪ Spam through TVs and refrigerators

▪ NASA to pay 18000 euros for two months in bed

▪ A new type of tablet from Lenovo

▪ Abnormally high temperature recorded at the North Pole

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Funny puzzles. Article selection

▪ article Unemployment. State policy in the field of employment. Basics of safe life

▪ article Why are there no numbers in IKEA product names? Detailed answer

▪ article Accountant for accounting of fixed assets. Job description