Free books, magazines, collections published in 1973

Free technical library

FREE TECH LIBRARY
Content of books and magazines / Year 1973

We invite you to visit our Free technical library.

Search books, magazines and collections click here.

For a quick free download, you can immediately go to to the appropriate section of the Library

IV Mathematical Olympiad MESI

VI International Physics Olympiad

VII city scientific conference of schoolchildren in Kyiv

XV International Mathematical Olympiad for schoolchildren

Abu Raykhan Beruni (to the 1000th anniversary of his birth)

Automatic emergency protection in control systems. Litvak V.I., 1973

Automorphic numbers

Andrey Nikolaevich Kolmogorov (on his seventieth birthday)

Antennas for portable receivers. Vasiliev V.A., 1973

Ballistic task in space

Blaise Pascal (on the occasion of his 350th birthday)

Boron phosphor

Physics brochures

In a quiet harbor

Walter Nernst and carps

Probabilistic problems

Humidity and climate

VMS at the Moscow Mathematical Society

High quality turntable

High-temperature strain gauges based on heat-resistant oxides. Ilyinskaya L.S., 1973

High-frequency unit of a portable transistor radio receiver

pyramid height

Calculations, errors, control

Helical sweep generator

Geometric problems

Geometry of complex numbers

gravitational mass

Recording and reproduction. Apollonova L.P., Shumova N.D., 1973

Movement of charged particles in an electric field

Range dial

Remote switching PTC

Remote protection PZ-187 PZ-188 PZ-189. Savostyanov A.I., 1973

Proofs of Hülden's theorems

Problems M181-185, F193-197 and solving problems M141-145, F159-163

Problems M186-190, F198-202 and solving problems M146-150, F164-169

Problems M191-195, F203-207 and solving problems M151-154, F170-175

Problems M196-200, F208-212 and solving problems M156-159, F176-177

Problems M201-205, F213-217 and solving problems M160-164, F178-182

Problems M206-210, F218-222 and solving problems M165-169, F183-187

Problems M211-215, F223-227 and solving problems M170-173, F188-192

[1] [2] [3] [4] [5] [6]

Search in books, magazines and collections

Enter the title of the article or book, in whole or in part. For example, charger, generator, timer...

<< Back

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

Plant Census of China 08.09.2006

The publication of the multi-volume work of Chinese botanists, begun in the 30s, has been completed. Four generations of scientists with a break for the "proletarian cultural revolution" (1966-1976) worked on 126 volumes, which list and describe 31141 species of higher plants known in China.

Local and imported, wild and cultivated, weeds and useful plants are taken into account. Moreover, more than 20 descriptions are illustrated with drawings and photographs. Exceed China in the diversity of flora only Brazil and Colombia.

The poorest area for plants (except for deserts) is the islands in the south of the Indian Ocean, near Antarctica, where there are only 35 species.

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Palindromes. Article selection

▪ article Protect the pipe from birds. Tips for the home master

▪ article Why did the Greeks themselves send lead for bullets to the enemy during the revolution in one of the battles? Detailed answer

▪ article A running simple knot. Travel Tips

▪ article The simplest programmer for microcontrollers. Encyclopedia of radio electronics and electrical engineering

▪ article The riddle of the handkerchief. Focus Secret

All languages of this page

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