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Other issues Quizzes online:

Arabic proverb: "Everything is afraid of time, but time is afraid of..." What is time afraid of?

What is the name of the physical constant that determines the relationship between temperature and energy?

The monument to Lenin, erected in 1956 in one of the villages of the Tula region, turned out from another monument, to which the head was replaced and removed from the hands ... What?

Everyone knows what a tanker is. The first of them were built at the end of the 19th century, but until a certain time their dimensions were limited by the given parameters, and the maximum displacement was about 30 thousand tons. Two events are known for sure that were the main reason why these natural limitations disappeared. Name at least one of these events.

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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 The smallest boat 01.11.2020 Scientists at the University of Leiden in the Netherlands have 3D printed the smallest boat in the world. The size of the boat is only 30 micrometers (0,03 mm), which allows it to fit inside a human hair. But despite its diminutiveness, the mini-ship is capable of independent navigation. The decomposition of hydrogen peroxide on a platinum catalyst helps it to move on the surface. The facility was designed to study microscopic floating organisms such as bacterial cells, the scientists said. It is known that their movement in water differs from objects of a large scale. The liquid for them is a more viscous substance, and in order to study such organisms in swimming, scientists conduct experiments with tiny spheres. In addition to the mini-boat, the university staff printed some more unusual details that tend to rotate in the water. Previous studies were carried out on particles of a spherical shape, but 3D printing has opened up new opportunities for scientists to experiment. So, for example, in a mini-boat, they even managed to print an open space inside the cabin.

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