What would happen if there was no dust? Detailed answer

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What would happen if there was no dust? Detailed answer

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What would happen if there was no dust?

Would the world really be a much better place if there were no dust? The answer is: in some respects yes, in others no. What is dust, exactly? It is made up of particles of soil or other solid matter, and these particles are light enough to be lifted and carried by the wind. Where do these particles come from? Their source may be the remains of flora or fauna, sea salt, volcanic sand and desert sand, ash or soot.

In most cases, dust is undesirable and useless. But, on the other hand, it helps to make the world more beautiful! The wonderful colors of sunrises and sunsets owe their beauty to a large extent to the dust scattered in the air. Dust particles in the upper air layers reflect the sun's rays. This makes sunlight visible for another hour or two after sunset. The colors that make up sunlight are refracted at different angles, reflecting off dust and water vapor particles scattered in the air. Sunsets are red because these particles refract the red rays of the sun in such a way that they become the last rays to disappear from view.

Another important function of dust is associated with rain. The water vapor in the air would not liquefy too quickly if it weren't for the dust particles that serve as the center for each drop of water. Therefore, clouds, fog, rain are mainly formed from countless dust particles enveloped in liquid.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What is embroidery?

Embroidery is the art of sewing decorative stitches on fabric. This is a very ancient art. The remains of embroidered clothes were found during archaeological excavations of the ruins of Assyrian and Persian cities. The Old Testament describes the beauty of embroidery on the festive clothes of the Jews in biblical times. In the Middle Ages, embroidery reached great heights.

The great Italian and Dutch artists drew blanks for tapestries, on which paintings were embroidered on biblical subjects. Noble women in their castles spent hours embroidering outfits for especially solemn occasions and bedspreads for the church altar. One of the most famous medieval embroideries is the Bayoq Tapestry depicting the Battle of Hastings. All the warriors, horses, griffins, phoenixes and monsters depicted on it are embroidered with woolen threads of eight shades on a linen cloth seventy meters long and almost fifty-five centimeters wide.

In the XNUMXth century, embroideries became very expensive - more expensive than their weight in gold!

In the XVIII-XIX centuries, the education of girls necessarily included learning the art of embroidery, which they practiced daily. They learned how to make various stitches on a piece of linen. Houses, animals, numbers, letters of the alphabet and even poems were embroidered on these samples. Finishing the embroidery, the girl indicated her name, age and the date when the work was completed. Each country had its own style of embroidery. In China and Japan, gold threads and silk were used for embroidery, with which dragons, flowers, birds and landscapes were embroidered on thin damask fabric.

In warm countries such as Italy and Spain, embroideries were bright and cheerful in color and pattern. France and Switzerland were renowned for their fine workmanship. There, embroidery was often done with white thread on a white background. In the Balkan countries, clothes and bedding embroidered with bright ornaments were inherited from generation to generation.

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acid underground 04.02.2007

It has long been proposed to pump at least some of the carbon dioxide produced by burning fossil fuels underground to combat global warming. By staying there, this gas will not contribute to the greenhouse effect.

Since the spring of 2006, a thermal power plant has already been opened in Belgium, sending its combustion products to underground layers. Norway has started pumping carbon dioxide under the bottom of the North Sea, into depleted oil wells, a similar project is being prepared in Algeria. But it is not clear how reliable this method of storing harmful gas is, whether the gas will begin to seep into the atmosphere.

A group of American geophysicists decided to study the processes taking place underground. They pumped 1600 tons of liquid carbon dioxide into sandstone formations at a depth of one and a half kilometers near Houston, Texas. For the year that has passed since the beginning of the experiment, no leaks have been established. But, dissolving in groundwater, carbon dioxide makes them slightly acidic, which allows the water to quickly dissolve the carbonate minerals that hold the sandstone together. So over time, the rock can loosen and release gas to the outside.

True, geophysicists emphasize that dissolution is "quick" on a geologic time scale, and the entire process can take thousands of years. However, the authors of the study recommend choosing carbon dioxide-free rocks or formations that are isolated from the surface by clay or shale.

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