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Latest news of science and technology, new electronics:

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 ... >>

The threat of space debris to the Earth's magnetic field 01.05.2024

More and more often we hear about an increase in the amount of space debris surrounding our planet. However, it is not only active satellites and spacecraft that contribute to this problem, but also debris from old missions. The growing number of satellites launched by companies like SpaceX creates not only opportunities for the development of the Internet, but also serious threats to space security. Experts are now turning their attention to the potential implications for the Earth's magnetic field. Dr. Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics emphasizes that companies are rapidly deploying satellite constellations, and the number of satellites could grow to 100 in the next decade. The rapid development of these cosmic armadas of satellites can lead to contamination of the Earth's plasma environment with dangerous debris and a threat to the stability of the magnetosphere. Metal debris from used rockets can disrupt the ionosphere and magnetosphere. Both of these systems play a key role in protecting the atmosphere and maintaining ... >>

Solidification of bulk substances 30.04.2024

There are quite a few mysteries in the world of science, and one of them is the strange behavior of bulk materials. They may behave like a solid but suddenly turn into a flowing liquid. This phenomenon has attracted the attention of many researchers, and we may finally be getting closer to solving this mystery. Imagine sand in an hourglass. It usually flows freely, but in some cases its particles begin to get stuck, turning from a liquid to a solid. This transition has important implications for many areas, from drug production to construction. Researchers from the USA have attempted to describe this phenomenon and come closer to understanding it. In the study, the scientists conducted simulations in the laboratory using data from bags of polystyrene beads. They found that the vibrations within these sets had specific frequencies, meaning that only certain types of vibrations could travel through the material. Received ... >>

Random news from the Archive Light evaporates water without heating 12.11.2023 A group of physicists from the Massachusetts Institute of Technology came to an interesting conclusion: light can cause the evaporation of liquid even without preheating. This unusual mechanism was found in hydrated hydrogels, but scientists say similar processes can occur in nature, making them important for climate models. The evaporation of water under the influence of sunlight is a well-known phenomenon that has applications in climate and chemical research. Typically, the sun heats a liquid, causing it to change into a gaseous state. However, experiments show that in porous materials such as hydrogels, liquid evaporates faster than can be explained by thermal energy. The work of scientists from the Massachusetts Institute of Technology provided an answer to this question. The researchers hypothesized that a photomolecular interaction occurs between light and water: photons from visible light knock water molecules off the surface. To test this hypothesis, they irradiated the hydrogel with light of different wavelengths, including those that do not lead to heating. Experiments showed that water evaporated despite the absence of excess heat. Scientists believe that the structure of the hydrogel allows it to effectively absorb light, which affects the liquid. This evaporation process occurs only at the interface between liquid and air, and it is possible that it affects not only hydrogels but also sea surfaces. Therefore, this effect must be taken into account in climate models. This new mechanism of water evaporation has been used by physicists to create patterns, such as laser cutting water with hydrophobic particles.

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