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What is a hurricane? Detailed answer

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What is a hurricane?

The word "hurricane" in the language of one of the tribes of American Indians means the name of the deity of the wind. These are giant air vortices. Hurricanes occur mainly in the period from August to October over the expanses of tropical seas. As a rule, they move from the south or southwest towards the East Coast of the United States, are up to 2000 m in diameter, bring floods, destruction and loss of life.

Now hurricanes are sometimes called storms and storms in any part of the planet.

Author: Mendeleev V.A.

 Random interesting fact from the Great Encyclopedia:

Who invented the airplane?

Sometimes a discovery begins with an "idea". A person has an idea that people need some kind of mechanism or product, and he begins to "invent" it.

But as for the airplane, or, as they used to say, the airplane, this idea was one of the oldest and most secret for a person. The idea of ​​flying has captivated man since antiquity. One of the most famous legends tells about Icarus, who attached wings to his body with wax and took off! However, as he approached the Sun, the wax melted and Icarus fell and died. But the dream remained. Icarus is a symbol of human striving for new heights.

Leonardo da Vinci, who was not only a great artist, but also an inventor, left behind sketches of an aircraft that used the muscular strength of a person. There were other dreamers who dreamed of the idea of ​​an airplane hundreds of years ago!

The earliest aircraft did not have their own power. They were, in fact, giant kites or gliders. During the XNUMXth century, many experiments were carried out with them.

But no one has succeeded in making a heavier-than-air aircraft with its own power. In fact, it was problematic - is it possible to build such an apparatus at all. The first to prove that this could be done was Professor Samuel Langley of the Smithsonian Institution in Washington. He built two flying machines, each 3,5 meters wide and 4,5 meters long, powered by a 1,5 horsepower steam engine. In 1896, these two models made successful flights. However, a test flight of Langley's life-sized aircraft ended in failure: it crashed on October 7, 1903.

On December 17 of the same year, the brothers Orville and Wilbur Wright managed to make a successful flight in an aircraft heavier than air with its own power. In Kitty Hawk, North Carolina, they made one flight of 30 meters in 12 seconds and the second of 260 meters in 59 seconds. Thus was born the airplane, or plane!

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Latest news of science and technology, new electronics:

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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. ... >>

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Random news from the Archive

Nanocrystals protecting fruit trees from frost 01.08.2018

Research on groundbreaking nanotechnology at Washington State University (WSU) to protect cherries, apples and other popular fruit trees from frost damage has shown positive results.

Recently, a team of researchers at WSU received a $500 grant from the USDA National Institute of Food and Agriculture to develop plant-based nanocrystals that should envelop and protect the buds of fruit trees during spring frosts when temperatures are unstable and unpredictable. . Washington state fruit growers also contributed $100 to help develop new technologies.

"Frost damage occurs in the spring when the flowers bloom on the trees and the delicate tissues of the plants are exposed. When the air temperature rises, this is a wake-up call for the plant. Plants lose their tolerance to cold temperatures quite quickly. As a result, frost damage is quite noticeable. fruit crop," said Matthew Whiting, a researcher and professor at the University of Washington.

The team of scientists, led by Professor Qin Zhang, Director of the WSU Center for Precision and Automated Agricultural Systems, also includes Xiao Zhang, Matthew Whiting and WSU Department of Mechanical Engineering Assistant Professor Changki Mo. In the spring of this year, they conducted the first field test with nanocrystals, which showed positive results. In addition to nanocrystal technology, over the next three years, researchers will continue testing to improve dosage and application.

"We will study the thermal properties of nanocrystalline aerosol and focus on fully understanding the mechanism of nanocrystals to reduce frost damage. The new technology could have a significant impact on the agricultural industry," said Mr. Mo.

Nanocrystals are made from plant material and are a more environmentally friendly method of controlling the temperature of crops than current methods. Manufacturers now use wind generators to circulate air and raise temperatures in gardens, as well as heaters that cost in excess of thousands of dollars per night.

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