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

What is the lowest temperature you've ever been able to get? 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?

What is the lowest temperature you've ever been able to get?

Almost absolute zero: only two billionths of a degree above it.

Author: Mendeleev V.A.

 Random interesting fact from the Great Encyclopedia:

What are shooting stars?

For many millennia, man has observed shooting stars, wondering what they are and where they come from. For some time it was believed that they come from other worlds.

Today we know that these are not "stars" at all. We call them "meteors". They consist of a solid body and, moving in outer space, sometimes fall into the Earth's atmosphere.

When a meteor passes through our atmosphere, we can observe it as it leaves a bright trail in the sky. This comes from the fact that as a result of the friction of the surface of the meteor on the air, heat is released.

Surprisingly, most meteors are very small, no bigger than a pinhead. Some meteors can weigh up to several tons. Most meteors burn up completely in the atmosphere, and only large meteors reach the Earth's surface. According to scientists, thousands of meteors fall on Earth every day, but since most of the Earth is covered by seas and oceans, meteors fall mainly there.

We may see a single meteor flying in any direction, but usually we see meteor showers made up of thousands of shooting stars. When the Earth crosses a meteor shower, a huge mass of meteors, falling into the upper atmosphere, heats up, and then we see a "meteor shower".

How did meteors appear? Modern astronomers believe that these meteor showers are the remnants of comets. When a comet is destroyed, millions of its particles continue to move in space in the form of a stream of meteors. They move in circular orbits. Every 33 years, the Earth crosses the orbit of such a meteor shower.

A meteor that hits the earth's surface is called a meteorite. It falls to Earth due to gravity. In 467 BC, a meteorite was recorded in ancient Rome. This event was considered so important that even ancient Roman historians noted it.

 Test your knowledge! Did you know...

▪ Who is Joseph Lister?

▪ How did a gas iron work?

▪ Why is one of the Cossacks in the picture of the Cossacks sitting without a shirt?

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:

A New Way to Control and Manipulate Optical Signals 05.05.2024

The modern world of science and technology is developing rapidly, and every day new methods and technologies appear that open up new prospects for us in various fields. One such innovation is the development by German scientists of a new way to control optical signals, which could lead to significant progress in the field of photonics. Recent research has allowed German scientists to create a tunable waveplate inside a fused silica waveguide. This method, based on the use of a liquid crystal layer, allows one to effectively change the polarization of light passing through a waveguide. This technological breakthrough opens up new prospects for the development of compact and efficient photonic devices capable of processing large volumes of data. The electro-optical control of polarization provided by the new method could provide the basis for a new class of integrated photonic devices. This opens up great opportunities for ... >>

Primium Seneca keyboard 05.05.2024

Keyboards are an integral part of our daily computer work. However, one of the main problems that users face is noise, especially in the case of premium models. But with the new Seneca keyboard from Norbauer & Co, that may change. Seneca is not just a keyboard, it is the result of five years of development work to create the ideal device. Every aspect of this keyboard, from acoustic properties to mechanical characteristics, has been carefully considered and balanced. One of the key features of Seneca is its silent stabilizers, which solve the noise problem common to many keyboards. In addition, the keyboard supports various key widths, making it convenient for any user. Although Seneca is not yet available for purchase, it is scheduled for release in late summer. Norbauer & Co's Seneca represents new standards in keyboard design. Her ... >>

The world's tallest astronomical observatory opened 04.05.2024

Exploring space and its mysteries is a task that attracts the attention of astronomers from all over the world. In the fresh air of the high mountains, far from city light pollution, the stars and planets reveal their secrets with greater clarity. A new page is opening in the history of astronomy with the opening of the world's highest astronomical observatory - the Atacama Observatory of the University of Tokyo. The Atacama Observatory, located at an altitude of 5640 meters above sea level, opens up new opportunities for astronomers in the study of space. This site has become the highest location for a ground-based telescope, providing researchers with a unique tool for studying infrared waves in the Universe. Although the high altitude location provides clearer skies and less interference from the atmosphere, building an observatory on a high mountain poses enormous difficulties and challenges. However, despite the difficulties, the new observatory opens up broad research prospects for astronomers. ... >>

Random news from the Archive

One tenth of new laptops are with touchpads 15.05.2013

Referring to data contained in a report prepared by Displaybank, an analytics firm, the source claims that 2013 million touchscreen laptops were shipped between January and March 4,57. This corresponds to about 10% of last quarter's total notebook shipments of 46 million units.

If we compare the number of touch screen notebooks released in the first quarter of 2013 with the number of touch screen notebooks released in the fourth quarter of 2012, it turns out that the shipment growth of these products is 51,8%.

Considering that the market for touch notebooks is at the initial stage of development, Displaybank analysts regard these figures as very high.

Taiwanese manufacturers are particularly enthusiastic about mobile computers with touch input. Recall that Acer plans to equip every second laptop with a touch screen in 2014, and in the total supply of Asustek Computer laptops, touch models in the first quarter accounted for 20%.

Other interesting news:

▪ Drought pollutes the air with ozone

▪ Clothes splattered from the spray

▪ solar train

▪ 1,7Gbps WiFi chip

▪ Avalanche in the battery

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the website Basics of First Medical Aid (BFA). Selection of articles

▪ article Arabian tales. Popular expression

▪ article What particles can rise from the core of the Sun to its surface for a million years? Detailed answer

▪ article Deputy director for capital construction. Job description

▪ article Modernization of watches Electronics 7-21-03. Encyclopedia of radio electronics and electrical engineering

▪ article A glass of milk. Focus Secret

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