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Builder, home master

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The "Builder, Home Craftsman" section contains a large selection of articles and tips to help you carry out various construction and renovation projects. You will find a lot of useful information for everyone who strives to perform high-quality construction and repair work. Interesting articles in the section will help you understand the selection and installation of various systems, as well as give advice on the optimal use of tools and materials.

 


 

See also section articles Tools and mechanisms for agriculture

 


 

Latest news of science and technology, new electronics:

The speech of sperm whales is similar to that of humans 18.05.2024

In the world of the ocean, where the mysterious and unknown coexists with the studied, sperm whales, with their huge brains, are of particular interest to science. Researchers, working with a huge array of audio recordings collected during the Dominica Sperm Whale Project (DSWP) - more than 8000 recordings, seek to unravel the secrets of their communication and understand the structure and complexity of the language of these mysterious creatures. By studying in detail the recordings of 60 sperm whales in the eastern Caribbean, scientists have revealed surprising features of their communication, revealing the complexity of their language. "Our observations indicate that these whales have a highly developed combinatorial communication system, including rubato and ornaments, which indicates their ability to quickly adapt and vary during communication. Despite significant differences in evolution, sperm whales have elements in their communication that are characteristic of human communication," says Shane Gero, a biologist at Carleton University and director of the CETI project. Issl ... >>

Electron spin for quantum information transfer 18.05.2024

The transfer of quantum information remains one of the key tasks of modern science. Recent advances in the use of electron spin to expand the capabilities of information transfer in quantum systems have become very important. Researchers at Lawrence Berkeley National Laboratory are pushing the frontiers of quantum information science by experimenting with the possibilities of electron spin. Electron spin, a natural quantum bit, is a potentially powerful means for storing and transmitting information in quantum systems. Magnon wave packets, collective excitations of electron spin, have revealed their potential to transmit quantum information over significant distances. The work of Berkeley Lab researchers has revolutionized the way such excitations propagate in antiferromagnets, opening up new prospects for quantum technologies. Using pairs of laser pulses, scientists disrupted antiferromagnetic order in one place and simultaneously studied it in another, creating ... >>

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

Random news from the Archive

Satellite Internet for Africa 10.10.2015

This summer, it became known that Facebook is building its own drone with a wingspan similar to that of a Boeing 737 aircraft. other end of the world. The drone is designed for a 90-day non-stop flight at an altitude of 30 m and the transmission of information using a laser at a speed of 000 gigabits per second.

As it turned out, it was just a warm-up. Now Facebook CEO Mark Zuckerberg has said that the company will launch a satellite next year to reach the remote corners of Africa. For those wondering why Africa, Zuckerberg explained: "We will continue to work on connecting the whole world - even if this requires going beyond our planet."

The satellite will be operated jointly with the French company Eutelsat. It has 34 geostationary satellites covering two-thirds of the world's population and is Europe's leading and world's third-largest satellite operator with over 5800 TV channels and 1250 radio stations.

The joint satellite, called AMOS-6, will be operated by the Israeli company Spacecom, whose satellites are being built by Israel Aerospace Industries, a state-owned corporation. AMOS-6 is designed to broadcast in the centimeter Ku-band from 12 to 18 GHz and centimeter and millimeter Ka-band from 26,5 to 40 GHz.

Other interesting news:

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News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

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