Free books, magazines, collections published in 1991

Free technical library

FREE TECH LIBRARY
Content of books and magazines / Year 1991

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1024 tips (twelfth byte)

20GDS-4-8 as low frequency

432 MHz EME

6-meter Band

AMSAT-U-ORBITA

CQ from hot air balloon gondola

CW RTTY modem

Disk-Monitor - a step towards SR/M

DX Stations

D-waves illusion or clue?

DX-technical aspects and organizational issues

Graph - symbols for every taste

II Festival of Young Mathematicians in Krasnodar

III International Olympiad in Informatics

INFOTEX AMATEUR RADIO CLUB

IV All-Union Olympiad for Schoolchildren in Informatics

Mini V-beam

ROM disk for Baltika

Sinclair compatible computers

Slopers

SSTV: theory and practice

SSTV converter with digital signal processing

DIY STV

TV - TV. Satellite television

WALKIE-TALKIE: Japan type D

XIV Moscow Economics and Mathematics Olympiad

XVII All-Russian Olympiad for schoolchildren

XXII International Physics Olympiad

XXV All-Union Olympiad in Mathematics

XXV All-Union Physics Olympiad

XXXII International Mathematical Olympiad

ZX Spectrum 128K - what is it?

And now - preference (puzzle)

A. Sakharov. Memories

Subscriber loudspeaker

August Perseid Stream

Autowave oxidation of metals

Autowave Oxidation of an Iron Film

Embroidery machine

The machine controls the washing machine

Science Automation

Automated electronic ignition unit

Caller ID

Automatic microbiologist

Vehicle without interference

The car at the end of the car age

Adaptive dynamic bias

AMSAT-U-ORBITA

AGC for micro transceiver

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Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Growth of the consumer robot market 09.08.2019

A new study by analytics firm Juniper Research has predicted that more than 2024 million consumer robots will be released in 74. For comparison: 28 million are expected to be released this year.

At the same time, robots helping around the house, such as robotic vacuum cleaners or robotic lawn mowers, will be shipped 19 million units this year, and 2024 million units in 20. In other words, growth will be driven by other segments

Analysts believe that vendors will focus on the educational side of robots, in particular by offering tools for programming them, and adding new features to increase value in the eyes of consumers. It is these factors that will drive growth in demand for consumer robots over the next five years.

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ Modeling section of the site. Selection of articles

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▪ article Diligent sawfly. physical experiment

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