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Crosswordist's Handbook / Index

Crosswordist's Handbook

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Arts and culture / Cinema, theatre, circus, stage / Seats in the auditorium

(4)

LODGE

RAJEC

TIER

(6)

BALCONY

BENOIRE

Parter

(7)

GALLERY

(8)

AVANLOJA

MEZZANINE

(9)

AMPHITHEATER

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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

Metal cracks can heal 27.10.2013

Scientists at the Massachusetts Institute of Technology (MIT) have made an unexpected discovery: under certain conditions, a metal can "heal" itself by closing cracks. This discovery could lead to the creation of self-healing materials that can work in the toughest conditions.

The discovery of scientists from MIT has great potential. As it turned out, in some cases, the forces that create cracks do not expand them, but rather "heal", restoring the integrity of the metal. Researchers are confident that it will be possible to create metals that, when cracked, will be able to self-repair and thus maintain structural strength even in the most difficult conditions. Such metals can be used in a wide range of applications, such as turbine blades and drilling tools.

The secret of the metal's unusual property lies in the interaction at the boundaries of tiny crystalline grains of the metal, the size and orientation of which affects the strength and other characteristics of the metal.

During experiments with nickel, which is the basis for high-temperature alloys, it was found that under certain conditions, the grain boundaries migrate and allow the metal to self-heal.

The very idea of ​​grain boundary migration within a solid metal has been studied over the past decade. The phenomenon of self-healing in the course of these studies could not be detected because it is observed only with a certain migration of boundaries, the so-called disclination, when changes affect the grain only partially. During disclination, defects in the metal have such intense stress fields that the edges of the cracks do not diverge, but, on the contrary, approach each other, literally "melting" the broken metal.

The scientists plan to study in detail the metal's self-healing mechanism in order to design metal alloys capable of sealing cracks that are common in various operating conditions.

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