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Schemes and manuals / Domestic audio equipment

Models Soviet audio equipment (music centers, tape recorders, radio tape recorders) sorted alphabetically.

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Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Sweet makes ants more fun 20.11.2022

A team of zoologists from Austria found that ants show excitement after eating dessert. In this they are like us.

Understanding the emotional states of animals is the key to the formation of ethical norms, but the study of the inner world of insects has always received too little attention.

Austrian biologists decided to fix it. They conducted an experiment with ants, during which it turned out that these animals can experience something like an optimistic mood.

First, the researchers trained ants to associate two scents with positive or negative reinforcers. They then mixed the two scents to gauge the reaction of the insects.

It turned out that ants tend to associate a mixed smell with positive reinforcement, demonstrating optimistic behavior. If before that the subjects received sweet food, then their optimism increased. Moreover, even if there was more negative odor in the mixture or physical impact was exerted on the ants, they were still more positively disposed.

It is possible that social insects tend to be extraordinarily optimistic: due to the reproductive division of labor, individuals may be subject to more natural selection. Our results are consistent with a previous study of bumblebees, which also responded optimistically to mixed signals after being rewarded with sucrose," the scientists noted.

The researchers summarize that their observations are not direct evidence of the existence of emotions in insects, but they advance humanity in understanding the processes occurring in the body of invertebrates.

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