Free books, magazines, collections published in 1979

Free technical library

FREE TECH LIBRARY
Content of books and magazines / Year 1979

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10 years FMS MIIT

15 years of Chelyabinsk NOU

2-adic numbers. (Comment to problem M434)

E = mc2: the urgent problem of our time

IV All-Union Summer School for Young Programmers

VI All-Russian gathering of young innovators and designers

XI International Physics Olympiad for schoolchildren

XIII All-Union Olympiad in Mathematics. Solving problems of the Olympiad

XXI International Mathematical Olympiad for schoolchildren

Autobiographical notes

Automatic Running Lights

Automation of electrical networks 6-35 kV in rural areas. Shabad M.A., 1979

Automatic dimmer

Classification algorithms. (Solution of problem M505)

Alexey Ivanovich Markushevich

Albert Einstein (1879-1979)

Antennas. Rothammel K., 1979

Arithmetic on checkered paper

Arithmetic hurdles. (Solution of problem M420, commentary on problem M516)

Running, walking and physics

Non-contact switching device

Contactless hitchhiking for cassette recorder

Billiards and surfaces

Blocks of scanners and synchronization on microcircuits. Baskir I.N., 1979

Variations on the theme of classical inequalities. (Commentary to problem M565)

Introduction to the technique of working with decision tables., 1979

Vector solution of affine problems

Vectors help in the exam

Fun quiz

Color television receiver video devices. Tikhomirov V.S., 1979

Volt-ohmmeter on field-effect transistors

All-Russian Olympiad for schoolchildren

Calculations without calculations

Let's calculate the number e

Where is the mistake? (a task)

TV test signal generator

Fast Recovery Pulse Generators

Geometric solutions of geometric problems

Geometric proof of the identity a2 - b2 = (a - b) (a + b)

Eye on entrance exams

Puzzles of our readers

Movement of charged particles in electric and magnetic fields

Binary encoding

cheap box

Proofs of geometric inequalities

Proving inequalities using the derivative

Domino Solitaire

Brownie, sorcerer and ... Helmholtz resonator

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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

100 volt voltage regulator LM5008 21.02.2004

NATIONAL SEMICONDUCTOR releases the first 100V LM5008 voltage regulator. With an input voltage of 9,5 to 100 V, the microcircuit has a standard output voltage of 12 V at a current of up to 500 mA.

The regulator is ideal for 48V power converters, automotive and other applications. Available in 8x4 mm MSOP-4 package.

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

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