Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Virtual keyboard

12.06.2002

Pocket computers are easy to carry, but inconvenient to use: either there is no keyboard, or it is so small that it is difficult to work with it.

The German company "Siemens" demonstrated at the annual computer exhibition developed in Israel "virtual keyboard". It is projected onto a table or any other horizontal surface by miniature laser beams. Moving your fingers, pressing the "keys" displayed on the table, you cross the laser beams, and these intersections are converted into letters on the PDA display.

Another option was proposed by the Swiss firm "Sensbord Technologies". "Bracelets" are put on the hands, which convert the movements of the fingers into letters. But to work with this keyboard, training and some imagination are needed - to imagine a keyboard in front of you that does not exist.

<< Back: Lightning strikes the sky 14.06.2002

>> Forward: Cats are hunting 10.06.2002

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

Nanospaghetti for health and longevity 10.04.2012

The 243rd National Meeting of the American Chemical Society unveiled the latest technology in regenerative medicine that can address the many ailments of old age and the effects of trauma. Unique nanofibers, developed by a team of scientists led by Dr. Samuel Stapp, can improve the physical abilities of the elderly and victims of accidents. The fibers are similar to raw spaghetti, but only microscopic in size. This is a new word in regenerative medicine, the main task of which is the repair or replacement of damaged organs: from the cartilage of the joints suffering from arthritis, to the nerve nodes torn in a car accident.

Regenerative medicine is relevant today more than ever. There are more and more older people in industrialized countries, and many of them are very valuable professionals. The tasks of health care include maintaining the working capacity of older people, prolonging their lives and getting rid of senile diseases. In addition, there are many people with severe injuries, complications due to chronic diseases, etc., which also requires the efforts of regenerative medicine.

"Nanospaghetti" can become one of the most valuable tools of regenerative medicine. These are small fragments of proteins that stick together randomly. The fibers are so small that over 50 fibers are the width of a human hair. "Nanospaghetti" can perform many functions. For example, Samuel Stapp attached signal molecules to them that mimic the substance VEGF, which promotes the formation of new blood vessels.

In mice, VEGF has successfully grown new blood vessels to replace damaged ones. Unfortunately, human experiments with VEGF ended in failure due to the fact that this substance is quickly broken down in the human body. At the same time, the new nanofibers remain inside for a week, allowing the VEGF analog to grow vessels. As a result, after dissolving the "nanospaghetti", only freshly grown fully functional blood vessels remain.

"Nanospaghette" can not only mimic the action of VEGF, they have a potential solution to many problems in regenerative medicine. In particular, this is the delivery of proteins, biological signals and stem cells to a specific point in the body, for example, to a damaged part of the heart, brain, spinal cord or other organs. Also, the new nanofibers can "line up" stem cells in the right order for proper repair of damaged tissues.

See full Archive of science and technology news, new electronics


All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024