Which land mammals are the fastest? Detailed answer

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Which land mammals are the fastest? Detailed answer

Big encyclopedia for children and adults

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

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Which land mammals are the fastest?

The fastest of land mammals is the cheetah, which, catching up with prey, is able to reach speeds of up to 110 kilometers per hour over a short distance.

In long-distance running, the leader among mammals is the pronghorn antelope, which can run several kilometers at a speed of about 50 kilometers per hour.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Have diamonds always been considered precious?

As far as can be judged from the sources, the first people engaged in the search for diamonds appeared in India. Diamond mining started there over 2500 years ago!

Diamonds have been highly valued from the very beginning. Until the fifteenth century, they were still so rare that only kings and queens could own them. And only in 1430 did the custom appear to wear diamonds as jewelry. Agnes Sorel, a court lady from France, was the first to do this, and from here the fashion spread throughout Europe.

The result was a frenetic diamond mining in India that lasted over 300 years. In the end, this source dried up, but, fortunately, diamonds were found in another part of the world - in Brazil, in 1725. The jungle and tropical climate made it very difficult to work, but nevertheless, for over 160 years, Brazil was the main source of diamonds in the world.

Currently, the center of diamond mining is South Africa, where large deposits of diamonds were found by accident in 1867. A boy from a poor farming family found a beautiful pebble, which was bought by a cunning neighbor who immediately recognized the precious diamond. When he sold it in turn, prospectors of all ages and nationalities came to the site. Within a year, three large diamond deposits were discovered here, and the city of Kimberley, the center of a huge diamond empire, appeared.

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Random news from the Archive

Video surveillance in Moscow schools 29.04.2012

Schools will be connected to the Moscow city video surveillance system. By the end of the year, cameras that will monitor security in schoolyards will be installed in 30% of the educational institutions of the capital, Artyom Yermolaev, head of the Department of Information Technologies of the capital, said at a conference with school principals on the introduction of information technologies in education.

Electronic student cards, the introduction of which has begun in 200 pilot educational institutions of the capital, will help track the visits of outsiders and establish control over school attendance. The student will be asked to present their card to a special validator at the entrance and exit of the school. At the request of the family, information about the student's movements will be sent to the parents' mobile phone.

Electronic cards are also planned to be used for non-cash payments in the canteen and food accounting for beneficiaries. At the same time, the child's relatives will be able to control the time of eating and see the school menu. In the future, the student's temporary cards will be replaced by the Universal Electronic Card, the launch of which at the federal level is scheduled for January 1, 2013. In order to take part in testing, the school administration must submit an application to the district education department.

The conference participants also discussed issues related to the introduction of electronic diaries and journals in schools. The deputy head of the Department of Education, Veniamin Kaganov, said the city would not object to the complete elimination of paper diaries if the school is fully confident in the sustainability of its electronic processes. At the same time, he asked institutions that have not yet begun to introduce electronic diaries to decide by the beginning of the next academic year.

The head of DIT Artyom Ermolaev noted that the city-wide system dnevnik.mos.ru will be actively developed, which will not only allow you to comfortably start working with electronic diaries from scratch, but also help to seamlessly integrate those disparate solutions that are already in educational institutions. A Department of Education spokesman said that a recent study by the department found a correlation between how actively a school communicates with parents through electronic diary systems and the level of satisfaction with the quality of education in a particular school. Representatives of the pedagogical community confirmed that the new tools do not destroy the traditional communication with parents, but make the interaction more constructive and intense.

The participants of the discussion emphasized that the introduction of new electronic services in education is financed from the city budget and is free for both schools and parents.

To cope with the influx of modern technology in schools - last year alone, a computer class was updated in 500 educational institutions, and 27 subject teachers received personal laptops - the launch of a unified technical support service will help, on the website of which you can also check the schedule for entering the school purchased by the city equipment.

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