Free books, magazines, collections published in 1980

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FREE TECH LIBRARY
Content of books and magazines / Year 1980

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1000 issues of the Mass Radio Library. Literature index, 1980

II All-Russian rally of the NOU asset

V All-Union Summer School for Young Programmers

XI holiday of young mathematicians in Batumi

XIV All-Union Olympiad in Mathematics

XIV All-Union Physics Olympiad

XVI Linguistic Olympiad

Abram Fedorovich Ioffe

Self-oscillations in the air flow

Automatic DC Voltmeter

TV circuit breaker

Automatic telegraph key

Automatic charger

Radio control equipment for models. Plotnikov V.V., 1980

Arithmetic progressions in Pascal's triangle. (Solution of problem M602)

Running lights on the IC

Near and far reception of television. Shur A.A., 1980

Wandering Chips

Help for a beginner radio amateur. Putyatin N.N., 1980

What is it?

Up the inclined plane

Great scientist and thinker

Hungarian articulated cube

Ventilation of electrical machines of industrial enterprises. Ligerman I.I., 1980

Modification of the Steiner surface

Fairy tale with physical questions

Voltmeter with field effect transistors

Eight digit dynamic display

All-Russian Olympiad for schoolchildren

Convexity of functions and proof of inequalities

Where is the base of the height located?

Pulse generator on digital microcircuits

Test Signal Generator for Adjusting Color TVs

Generator Chicken

Trapezoidal voltage generator

Holography

mountain and wind

Graphic system Sword

Dual Beam Oscilloscope

The work of each of us

Dialectical-materialistic worldview in school courses of mathematics and physics

Diodes and thyristors. Chernyshev A.A., 1980

Additional admission to correspondence mathematics schools

Another way to control yourself

Once again about the reaction of outflowing and inflowing jets

Forgotten theorem (sophism-joke)

Task for research

The problem of triangles with a common base

Problems M601-605, F613-617 and solving problems M546-550, F558-562

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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

Snapdragon 8 Gen 2 processor 15.11.2022

Qualcomm has introduced a new high-quality second-generation Qualcomm Snapdragon 8 chip. Snapdragon 8 Gen 2 is a commitment to image processing, high efficiency and maximum performance. The Qualcomm Snapdragon 8 Gen 2 is manufactured on a 4nm process and is an octa-core processor with three clearly differentiated cluster groups (1+3+4).

The first consists of a main core running at a maximum frequency of 3,2 GHz. The second one is a cluster of three cores with a maximum frequency of 2,8 GHz, and finally we have a cluster of cores designed for efficiency, with four cores with a maximum frequency of 2,0 GHz.

Qualcomm promises that this processor is up to 60% more efficient than a watt, which is one of the main problems faced by the previous generation. The peak performance they achieved was great, but consumption was erratic over time and they had to lower performance to keep from overheating. With this 2nd generation, you can forget about problems, at least on paper. In addition to being more efficient, the company promises a 35% faster processor and 40% overall power savings compared to the previous generation.

As for the GPU, the new Adreno saves 45% power and is 25% faster. In this generation, compatible games will be able to enjoy real-time ray tracing, which promises to improve reflections, shadow detail, and overall realism.

In addition, it is the first Snapdragon to include the AV1 codec by even playing 8K HDR video at 60fps. Qualcomm is also proud of its first "cognitive ISP". This part of the processor is responsible for real-time image segmentation processing. It's similar to what Google did in 2017 with the Pixel 2: separating different parts of the scene using semantic categories to better process the final image.

Connectivity is enhanced with WiFi 7 compatibility and increased latency, promising greater efficiency with the new FastConnect 7800 modem, capable of speeds up to 5,8Gbps Wi-Fi. The first mobile phones with this processor are expected to appear in late 2022 and early 2023.

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Power Amplifiers. Article selection

▪ article Will the world fail, or should I not drink tea? Popular expression

▪ article What was the greatest miracle of the Egyptian city of Alexandria? Detailed answer

▪ article Work on temostat. Standard instruction on labor protection

▪ article Checking the health of the rear light. Encyclopedia of radio electronics and electrical engineering

▪ article Repair of a loop in a radiotelephone, a car. Encyclopedia of radio electronics and electrical engineering

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