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Elephants are not afraid of mice, but bees

18.02.2008

African farmers have been tormented by elephants trampling their fields in herds. They tried everything: they built barriers, fired cannons, burned old car tires ... And the sound recording of the buzz emitted by a swarm of bees helped.

It turned out that this sound, coming from a hollow tree model, scares away the giants so much that they prefer to stay at a distance of an average of 64 meters from the source of such sounds. Some herds moved away 100 meters or more, and one herd of elephants even crossed the river in experiments conducted in Kenya, only to avoid hearing the angry bees.

The disadvantage of the new method is that the sound equipment is too expensive for many Africans. Therefore, the possibility is being considered to arrange apiaries near the fields, which at the same time will be able to supply local residents with honey.

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Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

There may be water on Jupiter's moon 10.10.2023

The James Webb Space Telescope (JWST) has revealed the first signs of carbon dioxide on Jupiter's icy moon Europa, bringing scientists closer to unlocking the mysteries of its potential oceans, which have long been known to lie beneath layers of ice. This discovery not only provides valuable information about the chemical composition of the oceans, but also highlights the importance of scientific research made possible by the JWST telescope.

"Scientific understanding of chemical diversity is especially important given that we live in a world where carbon is the basis of life. Our work will help determine whether Europa's ocean is capable of supporting life as we know it, or whether it creates favorable conditions for the existence of other forms of life." - notes Geronimo Villanueva, principal investigator at NASA's Space Flight Center. "This suggests that we can learn some basic things about the composition of the ocean before we drill into the ice to get the full picture."

Of particular significance is the fact that the researchers were able to confirm that the carbon molecules around Europa did not originate from external sources such as meteorites. Using JWST's Infrared Spectrograph (NIRSpec), they conducted an analysis that revealed increasing levels of carbon dioxide in the Tara Regio region, where surface ice had been disturbed by geological processes. This indicates an active exchange of substances between Europa's ice and its underground ocean.

It's also worth noting that NASA's Jet Propulsion Laboratory has introduced innovative virtual reality technology to study the Martian landscape. Created using a VR headset, the technology makes it easier to analyze data transmitted by Mars rovers and help more accurately measure the distances and sizes of objects on the Red Planet. Compatible with a variety of virtual reality headsets, it can be used in a variety of applications that require processing large amounts of data.

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