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Annex 3.1. The lowest permissible insulation resistance of the moving and guiding parts of switches made of organic material. Encyclopedia of radio electronics and electrical engineering

Encyclopedia of radio electronics and electrical engineering / Rules for the technical operation of consumer electrical installations (PTE)

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The world's tallest astronomical observatory opened 04.05.2024

Exploring space and its mysteries is a task that attracts the attention of astronomers from all over the world. In the fresh air of the high mountains, far from city light pollution, the stars and planets reveal their secrets with greater clarity. A new page is opening in the history of astronomy with the opening of the world's highest astronomical observatory - the Atacama Observatory of the University of Tokyo. The Atacama Observatory, located at an altitude of 5640 meters above sea level, opens up new opportunities for astronomers in the study of space. This site has become the highest location for a ground-based telescope, providing researchers with a unique tool for studying infrared waves in the Universe. Although the high altitude location provides clearer skies and less interference from the atmosphere, building an observatory on a high mountain poses enormous difficulties and challenges. However, despite the difficulties, the new observatory opens up broad research prospects for astronomers. ... >>

Controlling objects using air currents 04.05.2024

The development of robotics continues to open up new prospects for us in the field of automation and control of various objects. Recently, Finnish scientists presented an innovative approach to controlling humanoid robots using air currents. This method promises to revolutionize the way objects are manipulated and open new horizons in the field of robotics. The idea of ​​controlling objects using air currents is not new, but until recently, implementing such concepts remained a challenge. Finnish researchers have developed an innovative method that allows robots to manipulate objects using special air jets as "air fingers". The air flow control algorithm, developed by a team of specialists, is based on a thorough study of the movement of objects in the air flow. The air jet control system, carried out using special motors, allows you to direct objects without resorting to physical ... >>

Purebred dogs get sick no more often than purebred dogs 03.05.2024

Caring for the health of our pets is an important aspect of the life of every dog ​​owner. However, there is a common assumption that purebred dogs are more susceptible to diseases compared to mixed dogs. New research led by researchers at the Texas School of Veterinary Medicine and Biomedical Sciences brings new perspective to this question. A study conducted by the Dog Aging Project (DAP) of more than 27 companion dogs found that purebred and mixed dogs were generally equally likely to experience various diseases. Although some breeds may be more susceptible to certain diseases, the overall diagnosis rate is virtually the same between both groups. The Dog Aging Project's chief veterinarian, Dr. Keith Creevy, notes that there are several well-known diseases that are more common in certain breeds of dogs, which supports the notion that purebred dogs are more susceptible to disease. ... >>

Random news from the Archive Human health depends on trees 04.02.2013 A study by the US Forest Service shows that trees are closely linked to human health, and cutting down a nearby forest or park can even lead to premature death. An unusual study was carried out based on the analysis of mass destruction of forests by the emerald sawfly beetle (Podosesia fraxini). This beetle was first discovered near Detroit, Michigan in 2002. In the central and western United States, this pest has destroyed 100 million trees, providing rich material for analyzing the impact of deforestation on human health. Scientists analyzed nearly 18 years of data from 1296 counties in 15 states and found that Americans living in areas where trees are infested with the emerald beetle are more likely to die. So, in regions where beetles have destroyed ash, there are up to 15000 additional deaths from cardiovascular disease and 6000 more deaths from respiratory disease. Thus, the disappearance of trees from streets and parks leads to death of people. The data for 1990-2007 and 2010 came from counties and was processed to account for the impact of demographic differences such as income, race, and education. "Extraneous" variables, such as income or education, had some influence on the increase in mortality, but increased mortality invariably coincided with the death of trees, and a similar phenomenon was found in regions with completely different demographic patterns. The study clearly traces the relationship between the death of trees and increased human mortality, but it is difficult to trace a clear causal relationship. It is not yet entirely clear whether the deaths are related to deteriorating air quality, stress, or some other factor affecting the trees.

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