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Free technical library for hobbyists and professionals

As of May 02, 2024 in the database diagram.com.ua 500000 articles

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video art

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DVD authoring, Ace equipment (steadicam piloting), Free music for legal use, Video editing for beginners, Wedding video editing, Movie-like video filming, In-frame editing, Eight camera jams, All about editing shots, Choosing accessories for a video camera, The ten commandments of a cameraman , Recording multiple TV channels at once, Capturing digital video, Excess lighting when shooting video, Interlacing and how to deal with it ... all articles of the section >>

NEWS OF SCIENCE AND TECHNOLOGY,
NEW IN ELECTRONICS

Regularly replenished compilation the most interesting news of science and technology, new electronics. Large archive of articles from 2000 to 2024. Based on materials from periodicals and the Internet.

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

Translucent flexible solar cells 26.12.2013

Hendrik Bolink from the University of Valencia (Spain) and his colleagues experimented with organic compound molecules from methane and ammonia tails, as well as iodine and lead atoms. Spanish physicists have created translucent solar cells based on thin films of an organic analogue of the mineral perovskite, which are highly efficient and can bend, which allows them to be used as a tinted coating for glasses, according to an article in the journal Nature.

In recent years, scientists have created several exotic materials that can increase the efficiency of solar cells by several times. In particular, the attention of physicists is increasingly attracted by the mineral perovskite, whose thin films are semiconductors that convert light energy into electricity well.

Hendrik Bolink from the University of Valencia (Spain) and his colleagues experimented with organic compound molecules from methane and ammonia tails, as well as iodine and lead atoms. Having studied the chemical properties of this substance, the authors of the article came to the conclusion that it is similar in its properties to perovskite and can capture photons of light just as well and convert their energy into electricity.

The authors of the article tested this hypothesis by evaporating small amounts of methylammonium iodide (CH3NH3I) and lead iodide (PbI2) in a vacuum chamber containing a small plate. Vapors of these substances "settled" on the plate and connected with each other, forming a thin layer of perovskite.

Then the scientists packed this film into a "sandwich" of two pieces of conventional organic semiconductors - PCBM and PolyTPD, used in the manufacture of organosilicon photocells, inserted electrodes into it and checked it out. It turned out that their invention absorbed about 12% of the energy of light, which is comparable to the best performance for thin-film solar cells.

The main advantage of the invention of Bolink and his colleagues is that such solar cells are translucent and flexible. Coupled with their microscopic thickness, this allows such photovoltaic cells to be used as glass coatings capable of generating electricity or heat.

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FREE ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING

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AT LEISURE

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A random story from the life of a radio amateur:

He worked in the 90s as a radio mechanic. Application - Sadko Ts280 is not included. I come, in TV, the standard PSU trouble is a transistor, a thyristor and an electrolyte 100x63. I change it, turn it on - it works, but the whole image is in a blue tint. Replaced the capacity in the MC - the image is just perfect. I call the hostess, she, seeing how the TV works, starts hitting me: "What did you do? The box showed well, how will I watch it now ?!" place, turn on - the image is blue. The hostess immediately: "That's another matter!"
Other stories from the life of radio amateurs | Random fun story

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A person makes it turn on, but when it turns on, a person immediately turns it off.

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What was the name of the protagonist of the Dumas son's play, first staged in Moscow under the title "Handsome", whose name has become a household name for men who see the attractiveness of women in their financial situation?

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“A life based on having is less free than that based on creating or being” (William James)
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Rather than counting on treats, it’s better to buy whatever you find. Kalmyk proverb
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Everyone lies calendars
(Concerning all kinds of newspaper forecasts, weather reports, predictions of astrologers, interpretations of dream books, etc.)
From the comedy "Woe from Wit" (1824) by A. S. Griboyedov (1795-1829). The words of the old woman Khlestova (act. 3, yavl. 21). In many editions of comedy, not “everything”, but “everything” is erroneously printed, they often pronounce it the same way on stage
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Random phrase in Latin:

Camica santa. - Holy Shirt (about the shirts worn by the Garibaldians).
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Random fact "Did you know?":

The genome of the banking chicken, the ancestor of all breeds of domestic chickens, has been decoded. It is made up of about a billion base pairs of DNA. This information will not only help breeders, but is also expected to improve our knowledge of avian influenza and the causes of its contagion.
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Random article of the Great Encyclopedia for Children and Adults:

What is the Silver Age?

The "Silver Age" of Russian poetry is called the time of its highest rise in the late 20th - XNUMXs of the XNUMXth century (Blok, Gumilyov, Voloshin, Severyanin, etc.). Pushkin's era was called the "golden age" of Russian poetry.

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