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Heading presenter: Opanasenko Oleg Alekseevich



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

Food from insects will create waste-free agriculture 20.03.2022

Insects are an excellent source of protein, requiring significantly fewer resources to produce compared to conventional agriculture. If a mealworm farm is given 2 kg of food, you can get a kilogram of edible protein. In the production of beef, the efficiency is incomparably lower, and greenhouse gases are also emitted.

The production of insects for food and feed usually results in two by-products: insect exuvia and a kind of "meal". Exuviae are exoskeletons left over from insect moulting, and insect meal is mostly excrement and uneaten food. These two by-products could be potential alternatives to conventional fertilizers and pesticides.

Scientists from Wageningen University in the Netherlands analyzed the possibility of producing food for humans and animals from insect by-products. In addition, these by-products can provide farmers with an organic soil supplement.

An important component of insect exuvia is chitin, a high molecular weight aminosaccharide polysaccharide, which is also present in the cell walls of fungi and the exoskeleton of many crustaceans. Chitin-containing soil additives have been shown to promote plant growth.

Adding insect meal to the soil can promote plant growth - insect feces are rich in nitrogen, a nutrient that is critical for plant growth but is often deficient in soil. Nitrogen is often added to the soil as a synthetic fertilizer.

The use of by-products of insect breeding in agriculture can be a step towards a kind of cycle in food production, when the waste is completely utilized in the process itself. First, the insects are fed with crop or food waste, then the insects provide food for humans and meat products, and finally the insect waste is used to stimulate crop growth.

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News feed of science and technology, new electronics


Interesting materials of the Free Technical Library:

▪ section of the Electrician website. PTE. Article selection

▪ article by Daphne Du Maurier. Famous aphorisms

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▪ article Non-inverting linear amplifier. Encyclopedia of radio electronics and electrical engineering

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