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Football is good for bones

25.08.2001

This conclusion was made by English doctors who studied the preventive effect of various sports against osteoporosis - a disease in which bones become brittle due to loss of calcium.

It turned out that the most useful in this regard are fast ball games, which are characterized by frequent changes in rhythm - football, basketball, tennis. Sports such as swimming and cycling have little effect on bone density. Other outdoor activities that help protect bones from osteoporosis are hiking, mowing, bowling, and dancing.

Most often, osteoporosis attacks those who like to sit for hours in front of the TV, and least often - those who live in a house without an elevator, and the higher the better.

<< Back: steam helicopter 27.08.2001

>> Forward: Dolphin in the mirror 23.08.2001

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

Miniature key component for a quantum computer 05.12.2017

A team of researchers from the University of Sydney, Sanford University and Microsoft have succeeded in creating a miniature version of one of the key components used in quantum computing technologies. In addition, this work is the first case of practical application of an exotic state of matter, which is called a topological insulator. Topological insulators were discovered only in 2006 and the 2016 Nobel Prize in Physics was awarded for their discovery.

Unlike the familiar states of matter, solid, liquid or gas, topological insulators are materials whose bulk acts as an electrical insulator, and electrical conductivity is maintained only in areas adjacent to the surface. Manipulations with such materials make it possible to create circuits that provide interaction between quantum and traditional (electronic) systems, which is vital for building quantum computers.

The component scientists have created in quantum systems is called a microwave circulator, which acts like a section of the beltway, allowing electrical signals to propagate in only one direction, clockwise or vice versa. Such devices are widely used in base stations for mobile communication, in radar systems, however, the dimensions of such devices are quite large, they are comparable to the size of a human hand.

The new circulator, created by scientists, is a thousand times smaller than its traditional counterparts. Such a reduction in size became possible due to the property of topological insulators to change the propagation speed of electrical signals and electromagnetic waves passing through them, including light. The small dimensions of a new type of circulator will allow them to be integrated onto the surface of quantum chips in large quantities, which is necessary to ensure the performance of quantum computers.

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