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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

Wireless charging for Toyota electric vehicles 11.12.2013

Toyota Motor Corporation has entered into an agreement with WiTricity Corporation, a manufacturer of induction chargers. The peculiarity of WiTricity's business model is that it does not sell finished products, but licenses for their development. Through the collaboration, Toyota will gain access to WiTricity Corporation technologies. The ultimate goal is to equip both all-electric and hybrid Toyota vehicles with wireless battery charging systems.

Chargers based on WiTricity patents use the classic effect of electromagnetic induction, which involves the interaction of two coils with current. In this case, one of the coils is built into the transmitter connected to the electrical network (it can lie, for example, on the garage floor), and the second coil is located inside the car. The battery starts charging automatically when the car is parked over the transmitter.

With regard to passenger cars, the technology allows charging an "empty" battery in 4 hours, while transferring from 3,3 to 6 kW of energy. This figure can reach 25 kW for larger vehicles. The developers report that wireless charging takes about the same time as conventional charging from the mains.

To date, it has not been specified in which Toyota car models WiTricity technology will be used. In August 2013, the Japanese automaker announced plans to add wireless charging capabilities to its green Prius line. At that time, it was about the 2014 Toyota Prius Plug-In model.

There are more than 2445 CHAdeMO express charging stations globally today, roughly double the number from a year earlier, according to analysts at IHS Automotive. CHAdeMO technology is supported by more than 57 electric vehicles (including Mitsubishi i-MiEv, Nissan Leaf and Honda Fit EV models), accounting for about 80% of the non-ICE vehicle market.

The cost of installing one CHAdeMO charging station is in the range of 20-30 thousand dollars. Such a station makes it possible to charge the batteries in about 20 minutes, although, of course, this is still much longer when compared with the time of refueling gasoline at a conventional gas station.

Tesla Motors is working on a faster "recharge" method. The company equips its vehicles with rechargeable batteries that can be replaced after being discharged at specialized stations. This battery replacement takes only 10 minutes.

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