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How long does it take to clean all the windows of the Petronas Towers skyscraper? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

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Did you know?

How long does it take to clean all the windows of the Petronas Towers skyscraper?

The two towers of this skyscraper rise above the Malaysian capital Kuala Lampur. Until recently, they were the highest in the world. The towers have 32 windows that take a month to clean.

As soon as the brigades of high-rise washers finish their work, they have to immediately start it all over again.

Author: Kondrashov A.P.

 Random interesting fact from the Great Encyclopedia:

How did the surname of Rear Admiral Ivanov-Thirteenth appear?

In 1895, Ivanov, a graduate of the naval cadet corps, was promoted to midshipman and sent to serve on the Black Sea. At that time, naval officers with the same surnames were assigned serial numbers, and this Ivanov got number 13. In 1904, with the rank of lieutenant, he was appointed watch officer on the cruiser Rurik, which sank in an unequal battle during the Russo-Japanese war. During the battle, the captain of the cruiser was killed, and the officers who replaced him were also killed or injured, until the turn came to Ivanov, who gave the order to flood the ship and was the last to leave the side. For his valor, the emperor awarded the officer with the Order of St. George IV degree, and also ordered to change the name of Konstantin Petrovich to "Ivanov-Thirteenth".

 Test your knowledge! Did you know...

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See other articles Section Big encyclopedia. Questions for quiz and self-education.

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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 Pain Relieving Power of Music 21.01.2019

According to research from Queen Mary University of London, surgical patients who listened to music before, during or after surgery were significantly less anxious and more satisfied with the results of the medical intervention.

The analysis included data from randomized controlled trials in which adult patients who were exposed to any genre of music before, during, or after surgery were compared with patients who received standard medical care.

Of particular interest to the investigators were post-operative pain, need for pain relief, levels of anxiety, spread of infection, rate of wound healing, financial costs, length of hospital stay, and patient satisfaction with the results of the operation. For example, the reviewers noted that one study did not examine the effects of music on infection spread, wound healing rates, and costs. Also, there were no differences in the length of stay of patients in the hospital, depending on whether they listened to music or not.

However, cognitive activities such as listening to music have been found to reduce the patient's sensitivity to pain. Among other potential mechanisms of influence - a decrease in the autonomic activity of the nervous system, including a decrease in heart rate and respiration, as well as a decrease in blood pressure. Interestingly, the music that was played before the operation, rather than during or after it, had a better effect on reducing pain and anxiety.

Paul Glagiou, PhD from Bond University (Queensland, Australia) noted that listening to music is a simple procedure that does not require special financial costs, but which significantly reduces the temporary discomfort that occurs in many patients in the surgical department.

However, he also drew attention to the fact that the complexity of the human response to music raises a number of questions regarding the use of music for medical purposes. And if the impressive results of research certainly confirm the expediency of using music in medical institutions, then how exactly is still not entirely clear, because someone can be calmed by Mozart, and someone by Madonna.

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