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The Nile got longer

18.10.2006

An expedition of New Zealand and British geographers discovered what they claim is the real source of the Nile in the rainforest of Rwanda.

Until now, it was believed that the source of the great African river is the Kagera River, which flows into Lake Victoria. However, the researchers, moving up the Nile in four inflatable boats and on foot, found in the forest, at an altitude of 2400 meters above sea level, a stream flowing from a hole in clay soil.

This place is located much south of the source of the Kagera, so that the longest river in the world has "grown" by 107 kilometers. True, more detailed studies of other streams in the area are required to confirm the discovery.

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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

Neural Circuits Regulate Appetite 12.04.2013

Researchers from the University of East Anglia (UEA) have made a discovery in the field of neuroscience, which may finally solve the problem of excess weight.

It was previously thought that the brain nerve cells associated with appetite regulation were fully formed during the development of the embryo in the womb. In other words, their characteristics and quantity are fixed for life. Failures in the work of these neural circuits are the main cause of the development of obesity, and it is impossible to correct this "mistake of nature". However, a new study has shown that stem cells can form new neural circuits that regulate appetite. So far, the experiments have only been carried out on rodents, but the results are very encouraging, and the new therapy technique works on both young and adult individuals.

Obesity has already become a worldwide epidemic: today more than 1,4 billion adults worldwide are overweight and more than 500 million are obese. At least 2,8 million people die every year from complications associated with being overweight. Thus, the development of an effective therapy that eliminates this problem is an important scientific task.

Scientists from UEA have studied the hypothalamus, a region of the brain that regulates sleep and wake cycles, energy expenditure, appetite, thirst, hormone release and many other critical biological functions. Scientists paid special attention to the nerve cells that regulate appetite. As a result, it was found that a population of special brain cells, tanycytes, behave like stem cells and can form new neurons that regulate appetite. This process also occurs in adult mice, which means that appetite can be controlled at any stage of life.

This discovery is of great importance and can lead to the development of methods that will permanently eliminate obesity problems. Unlike diets, regulation of the neural circuits responsible for appetite can reliably protect against the temptation to eat another portion of high-calorie food.

The scientists now plan to identify a group of genes and cellular processes that regulate the activity of tanycytes. This will help to understand how the mechanism of formation of "neurochains of appetite" works, and to develop an "absolute" cure for obesity.

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