Radio - for beginners. Articles of the Free Technical Library

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Radio - for beginners

Free library / Directory / Radio - for beginners

Radio - for beginners

Articles for a beginner radio amateur

First acquaintance with the radio
radio reception
Encyclopedia of a beginner radio amateur

First acquaintance with the radio

Articles on the simplest radio receivers; circuits of the simplest radio receivers; descriptions of the simplest radio receivers: 5 articles

radio reception

Articles on radio reception; diagrams of devices for radio reception; descriptions of devices for radio reception: 10 articles

Based on the book by Borisov V.G. Young radio amateur

Encyclopedia of a beginner radio amateur

Articles for a beginner radio amateur; diagrams for a beginner radio amateur; descriptions for a beginner radio amateur: 393 articles

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

The main problem of the colonization of Mars 08.06.2020

The founder and head of SpaceX, Elon Musk, said that he was being prevented from creating the first Martian colony.

In order for the dream to become a reality, it is necessary to achieve a reduction in economic costs when launching a payload into low Earth orbit. After that, humanity will be able to create a full-fledged colony on Mars.

The start was made back in December 2015, when SpaceX returned the first stage of the Falcon 9 launch vehicle to Earth. Technically, this event played a major role in the transition to fully reusable rockets.

However, in order to create a self-sufficient Martian city, it is necessary to optimize the cost of transporting each ton of payload to a stationary orbit. To do this, it is necessary to reduce costs by more than 1000% compared to the performance of Falcon missiles.

Elon Musk also believes that the current situation in the development of space technology does not give contemporaries reason to count on the active colonization of Mars.

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