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Display for the blind

28.06.2002

The Osaka Central Library has the world's first monitor for the blind, developed by Japanese scientists from the KJS Corporation in cooperation with the Japanese National Space Administration.

The monitor screen is a standard 14-inch liquid crystal surface equipped with more than 3000 1,6 mm diameter plastic raised dots. A tactile display will allow visually impaired people to understand any previously inaccessible visual information.

<< Back: The moon will prevent the global energy crisis 29.06.2002

>> Forward: Three-dimensional image on the monitor screen 26.06.2002

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

Competition of inverters for solar power plants 15.05.2014

Google has announced a competition to create an inverter that is significantly smaller than similar existing devices. The developer of such an inverter will receive a reward of $1 million.

Inverters are used to convert direct electrical current into alternating current. It is direct current that occurs in the photocell circuit of solar panels, while, as a rule, alternating current is needed to power household appliances.

The inverters used in solar power plants are characterized by significant dimensions and considerable weight. As part of solar power plants, this is one of the most expensive components.

At the same time, although the cost of photovoltaic cells has decreased significantly in recent years, the same cannot be said about inverters: 10 years ago, the cost of an inverter in a solar battery was $50, and the cost of photocells was also $50. Today, the cost of photocells in a similar battery equals $10, and the inverter, like 10 years ago, costs $50.

According to Google representatives, about 80% of all electricity on Earth by 2030 will flow through inverters and other electronic converters. This will make such devices indispensable components of electrical networks. If inverters became much more compact, this would reduce the cost of solar power plants and make them more efficient.

The new competition announced by Google is just one of many projects aimed at reducing the harmful impact on the environment. To date, the corporation has spent a total of about $1 billion on 16 renewable energy projects and plans to power all of its data centers in the future.

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