Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library

Emergencies and civil defense

Fundamentals of Safe Life Activities (OBZhD)

Fundamentals of safe life. Emergencies and Civil Defense:

See other articles Section Basics of safe life:

See also section articles Fundamentals of First Aid:

<< Back

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

Beats Electronics Powerbeats2 Wireless Headset 23.06.2014

Beats Electronics, which recently became part of Apple, announced the release of an updated headset for athletes called Powerbeats2 Wireless. This is the first wireless headset from Beats Electronics. Bluetooth is used to connect the headset to a mobile device. The headphones are connected to the remote control and the microphone with a flat cable.

Like the previous Powerbeats model, the novelty was created by the joint efforts of Beats specialists and the famous basketball player of the Miami Heat club LeBron James. The device is also made in the in-ear form factor with an adjustable rubberized earpiece for attaching behind the ear.

The headset is designed for fitness enthusiasts. The press release noted its resistance to moisture and sweat in accordance with the requirements of the IPX4 standard.

In addition to listening to music, Powerbeats2 can be used instead of a regular Bluetooth headset for telephone conversations. Unlike most Beats Electronics products, the novelty is lightweight. However, as the company assures, the device provides the same high quality sound as its predecessor Powerbeats. The headset has a volume control and a track switch button.

The Powerbeats2 has a battery life of around six hours, making it suitable for long-distance runners as well. It also reports the possibility of fast charging within 15 minutes, ensuring continuous operation of the device for an hour.

The Beats by Dre Powerbeats 2 Wireless goes on sale this month for $199,95.

Other interesting news:

▪ Mini Robot for Moon Exploration

▪ New Tantalum Organic Polymer SMD Capacitors

▪ Tesla electric car battery quick change

▪ Microplastics found in plant leaves

▪ oily water

News feed of science and technology, new electronics


Interesting materials of the Free Technical Library:

▪ site section Chargers, accumulators, batteries. Article selection

▪ article Natural emergencies of biological origin (mass diseases): epidemics, epizootics. Basics of safe life

▪ article What is radioactive fallout? Detailed answer

▪ Takka's article. Legends, cultivation, methods of application

▪ article 136 kHz band antenna. Encyclopedia of radio electronics and electrical engineering

▪ article The TV is switched on and off by the VCR. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:


Email (optional):

A comment:

All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews