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Collection New Radio Yearbook No. 29
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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 ... >>
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 ... >>
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 ... >>
Random news from the Archive
Nano guitar string plays by itself
22.10.2019
Scientists from Lancaster University and Oxford University (UK) have created a "nano-string" that vibrates without any external influence. A tiny wire, resembling a guitar string, can be driven directly by an electric current.
To create the device, the researchers took a carbon nanotube, which is a wire about three nanometers in diameter, about 100 times thinner than a guitar string. They attached the "string" to metal supports at each end and then cooled it down to 000 degrees above absolute zero, which is -0,02°C. The central part of the wire was free to vibrate, which the researchers could detect by running a current through the wire and measuring the change in electrical resistance.
Just as a guitar string vibrates when it is plucked, a wire vibrates when electrical voltage is applied to it. Surprisingly, when they repeated the experiment without external forces, the wire also began to move. The "nano-guitar" string played by itself.
So what note does the nano guitar play? A nanotube is much thinner than a guitar string, so it vibrates at a much higher frequency - within the ultrasonic range. So no one can hear it. But you can still assign a "note" to this sound. Its frequency is 231 million hertz, which means it is an A (A) string 21 octaves above standard tuning.
Such a nanostring could be used to amplify tiny forces, such as in new microscopes, or to measure the viscosity of exotic quantum liquids.
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