Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library

Free library / Directory / Factory technology at home - simple recipes

Factory Technology - Simple Recipes and Tips

Directory / Factory Technology - Simple Recipes and Tips






Waterproof and fire resistant materials



Glazes, enamels









Imitation pearl



Stationery ink, ink, paints






Leather, shoe care






Paints, drying oils






Varnishes, polishes



Oils, lubricants, ointments






Marble, plaster, alabaster



Soap, washing powders



Sheepskin, fur



Product coloring



bleaching, discoloration






Various masses






Horn, ivory



Resins, sealing wax






Cements, putties



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

Jabra Elite 4 Active TWS headphones 05.01.2022

Jabra has introduced a new model of TWS headphones - Elite 4 Active. The model is offered in blue, mint and black colors.

The headphones are equipped with 6 mm drivers with a frequency range of 20 Hz to 20 kHz. The novelty supports the Qualcomm aptX codec and boasts a transparency mode called HearThrough.

The Jabra Elite 4 Active is configured using the Jabra Sound+ software. The Spotify Tap feature lets you play music on Spotify with just one tap. Fast connection to smartphones is carried out due to Fast Pair technology.

On a full charge of the batteries built into each independent module, the headphones can work for 7 hours. The case, which charges in 3 hours, extends the battery life of the Jabra Elite 4 Active by up to 28 hours.

The recommended price for the Jabra Elite 4 Active headphones was $160.

Other interesting news:

▪ American scientists have developed a new filter

▪ Device for contactless identification by fingerprint

▪ Consciousness as a balance of interaction between neurons

▪ Egyptian bowling

▪ Smart surveillance camera with tracking function

News feed of science and technology, new electronics


Interesting materials of the Free Technical Library:

▪ site section Chargers, accumulators, batteries. Article selection

▪ Article Tax law. Lecture notes

▪ article What is TNT equivalent? Detailed answer

▪ article Weather Records. Heat. Tourist tips

▪ article Automatic charger for automotive lead-acid batteries. Encyclopedia of radio electronics and electrical engineering

▪ article 420 MHz transmitter. Encyclopedia of radio electronics and electrical engineering

All languages ​​of this page

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