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

How long did Robinson Crusoe spend in Russia? 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?

How long did Robinson Crusoe spend in Russia?

The novel about the adventures of Robinson Crusoe has a continuation in which the hero is shipwrecked off the coast of Southeast Asia and is forced to travel to Europe through all of Russia. In particular, he waits out the winter in Tobolsk for 8 months.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

Where do rhinoceroses live?

Today, there are five different types of rhinoceros, of which two - white rhinoceros and black - live in Africa. Both species have two horns. The remaining three species are found in Asia. The Indian and Javanese rhinos have one horn each. A rhinoceros from Sumatra has two.

The bodies of rhinos are powerful, heavy, they usually move very slowly. They pay very little attention to what is happening around them, because they do not perceive other animals as potential food. They feed only on grass and other green plants. These powerful creatures are usually very calm and unsociable. But being forced to defend itself, the rhinoceros becomes very ferocious and dangerous. He can reach speeds of up to fifty kilometers per hour when he attacks the enemy, tilting forward his terrible head with pointed crooked horns.

The smallest rhinoceros, the Sumatran, usually weighs less than a ton and is about one meter tall at the shoulder. The largest rhinoceros, the white African, weighs three and a half tons or more, and is about two meters tall. The massive body of the rhinoceros rests on four relatively short legs. Each foot has three toes. These are ungulates that are relatives of horses.

The horn of some species of rhinoceros is very long: the largest of those that could be measured was more than one and a half meters. There are one or two horns, depending on the type of animal. The first horn is located above or slightly behind the nostrils, the second - just behind the first, somewhere at eye level. The horn in its structure is a bun and strongly compressed hard hair. The rest of the body, except for the area near the ears and the tip of the tail, is hairless. Rhino skin is tough and thick.

Rhinos usually roam the savannah and feed on their own, but sometimes you can meet a rhinoceros family. The female gives birth to only one cub at a time. The cub is born about eighteen months after the mating season and is under the care of the mother for several years. In captivity, rhinos live up to about fifty years of age.

 Test your knowledge! Did you know...

▪ What is a stroke?

▪ What language does not have the words yes and no?

▪ How was the word Internet translated into the language of the Eskimos?

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:

Solidification of bulk substances 30.04.2024

There are quite a few mysteries in the world of science, and one of them is the strange behavior of bulk materials. They may behave like a solid but suddenly turn into a flowing liquid. This phenomenon has attracted the attention of many researchers, and we may finally be getting closer to solving this mystery. Imagine sand in an hourglass. It usually flows freely, but in some cases its particles begin to get stuck, turning from a liquid to a solid. This transition has important implications for many areas, from drug production to construction. Researchers from the USA have attempted to describe this phenomenon and come closer to understanding it. In the study, the scientists conducted simulations in the laboratory using data from bags of polystyrene beads. They found that the vibrations within these sets had specific frequencies, meaning that only certain types of vibrations could travel through the material. Received ... >>

Implanted brain stimulator 30.04.2024

In recent years, scientific research in the field of neurotechnology has made enormous progress, opening new horizons for the treatment of various psychiatric and neurological disorders. One of the significant achievements was the creation of the smallest implanted brain stimulator, presented by a laboratory at Rice University. Called Digitally Programmable Over-brain Therapeutic (DOT), this innovative device promises to revolutionize treatments by providing more autonomy and accessibility to patients. The implant, developed in collaboration with Motif Neurotech and clinicians, introduces an innovative approach to brain stimulation. It is powered through an external transmitter using magnetoelectric power transfer, eliminating the need for wires and large batteries typical of existing technologies. This makes the procedure less invasive and provides more opportunities to improve patients' quality of life. In addition to its use in treatment, resist ... >>

The perception of time depends on what one is looking at 29.04.2024

Research in the field of the psychology of time continues to surprise us with its results. Recent discoveries by scientists from George Mason University (USA) turned out to be quite remarkable: they discovered that what we look at can greatly influence our sense of time. During the experiment, 52 participants took a series of tests, estimating the duration of viewing various images. The results were surprising: the size and detail of the images had a significant impact on the perception of time. Larger, less cluttered scenes created the illusion of time slowing down, while smaller, busier images gave the feeling of time speeding up. Researchers suggest that visual clutter or detail overload can make it difficult to perceive the world around us, which in turn can lead to faster perception of time. Thus, it was shown that our perception of time is closely related to what we look at. Larger and smaller ... >>

Random news from the Archive

MCP1811/12 - a family of linear regulators with ultra-low quiescent current 30.12.2019

When developing portable devices, special attention should be paid to the choice of voltage converters. They should be small, have low self-consumption, and have a minimum of passive components in the harness.

Microchip offers a solution - a new family of LDO controllers MCP1811/12.

Despite the UDFN's tiny 1mm x 1mm package, the regulator can deliver up to 300mA of output current. At the same time, the quiescent current is only 250 nA, and in the Shutdown mode it can drop to 5 nA. With these features, the MCP1811/12 is well suited for small, portable, battery powered applications.

The regulators are available with nine fixed standard output voltages: 1, 1,2, 1,8, 2,0, 2,5, 2,8, 3,0, 3,3 and 4.0 V. The voltage drop at 300 mA is 400 mV.

Another feature of the MCP1811/12 is that only one ceramic capacitor with a capacity of 1 uF is sufficient for stable operation. It takes up little space on the board and provides a stable output voltage with minimal noise.

Key features of the MCP1811/12 family:

output current up to 300 mA;
quiescent current 250 nA;
case UDFN 4-lead, SOT-23-3/5, SC70-3/5;
input voltage range 1.8...5,5 V;
output voltage range 1...4 V;
fixed voltage drop (400 mA);
binding from one ceramic capacitor 1 μF (2,2 μF).

Other interesting news:

▪ Monitor AOC C3583FQ

▪ D-Wave quantum computer with record performance

▪ KNX Twisted Pair Transceiver STMicroelectronics STKNX

▪ 1,6 nm gears for molecular machines and nanorobots

▪ Video on the battlefield

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Stories from the life of radio amateurs. Selection of articles

▪ article If you want peace, prepare for war. Popular expression

▪ Article Which bird is the most common in the world? Detailed answer

▪ article Microcar Crab. Personal transport

▪ article Security alarm system on KR1850BE35. Encyclopedia of radio electronics and electrical engineering

▪ article Network power supply for car radios. 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