What does moon dust smell like? Detailed answer

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What does moon dust smell like? Detailed answer

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What does moon dust smell like?

Although the American astronauts thoroughly cleaned their spacesuits before returning from the Moon to the ship, they still had some lunar dust on them. In the ship, the astronauts determined that the lunar dust smelled like gunpowder.

Authors: Jimmy Wales, Larry Sanger

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Can the virus be seen?

A virus is a microscopic organism that causes disease. It cannot be detected with an ordinary microscope. But this does not mean that science does not have the opportunity to study the structure of the virus. Today there are ultramicroscopes that make it possible to see microorganisms. Science is able to determine the size and types of viruses using an electron microscope.

The electron microscope uses the glow of electrons instead of light rays. The electrons passing through the sample are observed and recorded on a photographic plate, on which the image appears. Therefore, it is possible to increase objects up to 100 thousand times. Using an electron microscope, it was possible to find out that the size of viruses ranges from 300 to 10 millimicrons.

What is a millimicron? It's 1/1000 of a micron.

A micron is 0,00001 millimeters. No one knows for sure what viruses are. Some scientists think they are close relatives of bacteria. Other researchers believe that viruses are similar to elementary particles close to genes. Still others believe that viruses are in the middle between living and non-living matter.

We know that viruses can only grow and multiply in living tissue. This means that they cannot be cultivated outside of living matter, and this makes it difficult to study the properties of their growth. Therefore, they are classified according to their ability to infect living cells and according to the reaction that they cause in the body of animals or humans. Do viruses produce poisons and toxins? It is now recognized that they produce toxins, but the toxins and parts of the viruses cannot be isolated. And we still don't know how these toxins cause disease, if they do!

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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

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Cleaning rivers with bubbles and hair 09.11.2021

The European Union intends to stop the depletion of flora and fauna by 2030 and restore natural systems so that the diversity of species will begin to recover naturally. The ambitious goal of European politicians was announced in the new "Biodiversity Strategy until 2030", adopted this year. One of the objectives of the "Strategy" is to clean up 25 km of rivers in order to restore their free flow.

Ideas have already appeared in France and the Netherlands. So, a Dutch startup came up with an unusual way to clean rivers of plastic - a device that creates a barricade of air bubbles in the water. The bubbles push the plastic out of the water. These bubbles, according to the developers, should bring to the surface more than 85% of the plastic floating at depth. The device is just a hose with holes, which is thrown to the bottom of the rivers near the ports. The barricade should be placed so that all the ejected plastic is collected in one place - it's easier to catch the trash. The device has already been tested in Amsterdam. In the summer of 2022, it will start working in Porto (Portugal).

And in the Upper Rhine in France, they intend to clean water bodies and soil from fuel oil with the help of human hair. One "sausage" of rolled hair can absorb up to 8 liters of harmful liquid. This cleaning method was sometimes used in France as early as the 1970s. Now they want to make it a permanent practice. Hair will be collected at hairdressers. For hair there are no requirements for quality, length and color - they are all equally useful. Hairdressers who have expressed a desire to take part in the campaign (and there are more than 3000 of them today) will collect cut hair and then send it to Strasbourg, where a special collection point has been set up. From there, the "sausages" will be delivered to the sites of fuel oil spills.

Hair "sausages" will work like sponges, sucking out contaminants from water or soil. They will be laid out pointwise, taking into account the direction of water movement or the composition of the soil. This method of cleaning, according to the organizers, is good because after the hair has completed its mission, it can be washed and reused.

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