Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


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

60 diagrams of amateur radio devices. Drobnitsa N.A., 1988

I All-Union Olympiad for Schoolchildren in Informatics

III scientific and technical conference of schoolchildren in MIPT

XI tournament of young physicists

XIV All-Russian Olympiad for schoolchildren

XXII All-Union Olympiad in Mathematics

XXII All-Union Physics Olympiad

A.N. Kolmogorov in the memoirs of students

Absolute temperature

TV circuit breaker

Automatic non-contact switching device

Active probe for oscilloscope

Alexander Alexandrovich Fridman (on the occasion of his 100th birthday)

Archimedean force in literary works

The safety of electrical work at height. Kornilovich O.P., 1988

Conversation with Academician V.P. Maslov

Household video recorders (according to foreign sources)

At the beginning of the journey

What is the focus?

Eight-band stereo equalizer

Universe as a heat engine

All-Union Correspondence Physics and Mathematics Olympiad of Moscow State Technical University named after N.E. Bauman

All-Union Competition Young Programmer

Selection of equipment, protections and cables in 0,4 kV networks. Belyaev A.V., 1988

Output stages of a wideband oscilloscope

Harmonic vibrations

Heinrich Hertz and electromagnetic waves

paper sheet geometry

Geometry of lucky tickets

Geometry of Equations

heterodyne reception

thermometer for the sun

light pressure

Two transistor testers

Two generalizations of classical formulas

PAL coded decoder

ten digits

Once again about the multifunctional lighting effects machine

Rigidity of convex polyhedra

Liquid nitrogen and copper nut

Problems of the LI Moscow City Mathematical Olympiad

Problems M1081-1085, F1093-1097 and solving problems M1061-1063, F1073-1077

Problems M1086-1090, F1098-1102 and solving problems M1066-1069, F1078-1082

Problems M1091-1095, F1103-1107 and solving problems M1070, M1072-1075, F1084-1087

Problems M1096-1100, F1108-1112 and solving problems M1071, M1076-1080, F1088-1092

Problems M1101-1105, F1113-1117 and solving problems M1081-1085, F1093-1096

Problems M1106-1110, F1118-1122 and solving problems M1086-1090, F1097-1102

Problems M1111-1115, F1123-1127 and solving problems M1091-1095, F1103-1107

Tasks M1116-1120, F1128-1132 and solving problems M1096-1098, M1100, F1108-1112

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

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

Slim Full HD display from LG 17.07.2013

LG has unveiled the world's thinnest Full HD premium smartphone LCD display using One Glass Solution (OGS) technology. This technology involves the combination of protective glass and display elements into a single whole, which has a positive effect on the final thickness of the product.

The display diagonal is 5,2 inches. According to the developers, one of the advantages of the display are excellent viewing angles. However, the main feature is its size. The thickness of the new display is 2,2mm and the bezel size is 2,3mm.

The display received a resolution of 1920 x 1080 pixels, each of which consists of red, green and blue (RGB) subpixels. The brightness is 535 cd/m2. OGS technology allows you to increase the viewing angles of the display and improves readability in bright sunlight.

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Lecture notes, cheat sheets. Selection of articles

▪ article Instead of a circle - a skin. Tips for the home master

▪ article Whose cubs during childbirth fall to the ground from a height of two meters? Detailed answer

▪ article Locksmith for assembly and welding of metal structures. Standard instruction on labor protection

▪ article Phaser for electric guitar on operational amplifiers. Encyclopedia of radio electronics and electrical engineering

▪ article Standards for testing electrical equipment and devices for electrical installations of consumers. Test rectified voltage of power cables. Encyclopedia of radio electronics and electrical engineering


All languages ​​of this page

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

www.diagram.com.ua

www.diagram.com.ua
2000-2024