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Batteries and accumulators

Batteries and accumulators

(V.S. Lavrus.)

The book contains information about the design, principles of operation and characteristic features of chemical current sources (batteries and accumulators). You will learn how to choose the batteries and accumulators you need, how to properly charge and restore them.

Table of contents



Articles on chargers, batteries, galvanic cells

Chargers, batteries, galvanic cells



See also: Automobile. Batteries, chargers

Automobile. Batteries, chargers



All articles on power supply

Power supply



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

World's deepest fish discovered 10.04.2023

In the Izu-Ogasawara Trench, south of Japan, at a depth of 8336 km, scientists discovered a snailfish that is now considered the deepest-sea fish in the world.

According to lead scientist Prof. Alan Jamison, the snailfish can be found at the deepest depth any fish can survive, and this is likely due to the warm waters of a trough located in the Pacific Ocean.

It was not possible to catch a fish to determine its species type, however, earlier similar individuals were caught at a depth of 8022 meters.

“We foresaw that there would be the deepest-sea fish, and we foresaw that it would be a snail fish. I get upset when they tell me that we don’t know anything about the sea depths. We are working. Everything changes very quickly,” the scientist noted . To this day, a depth of 8178 meters was the record for living creatures. Researchers have discovered fish south of the Pacific Ocean in the Mariana Trench.

Now in the oceans there are more than 300 different species of snail fish. In shape, they are similar to tadpoles: they have the same large heads and thin, long, narrow bodies. These creatures are adapted to live at very great depths and withstand the enormous pressure of deep water.

Previously, Professor Jameson, who was born and raised in Scotland, discovered deep-sea octopus, jellyfish and squid.

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