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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 ... >>

Random news from the Archive Laser satellite communications 07.12.2022 With the help of a new satellite, developed by engineers from the Massachusetts Institute of Technology (MIT), a new record for data transmission between satellites and the Earth has been set. The TeraByte InfraRed Delivery (TBIRD) terabit infrared transmission system used lasers to transfer huge amounts of data at speeds up to 100 gigabits per second (Gbps). This data rate is much faster than most sky-to-ground connections. For example, SpaceX's Starlink satellite internet offers premium customers speeds of up to 500 Mbps. And the data transfer rate between the Earth and the International Space Station reaches around 600 Mbps. This makes the TBIRD system 200 times faster. The main difference of the new system is the method of data transmission. While most satellites communicate with ground stations using radio waves, the TBIRD system uses laser light. It can transfer 1000 times more data in one session. However, lasers also have their drawbacks. A laser beam is much narrower than a radio wave and therefore requires a more precise position matching between transmitter and receiver. In addition, the light may be distorted by the atmosphere, in which case data may be lost. It is with the aim of solving these problems that the TBIRD system was developed. The satellite contains three main ready-made components: a high-speed optical modem, an optical signal amplifier, and a storage device. All of this is housed in a container the size of a shoe box. To solve the problem of data loss, a team of engineers developed a new version of the so-called ARQ (Automatic Repeat Request) protocol. This protocol allows the ground station receiver to notify the transmitter of certain data packets (frames) that the transmitter has missed so that the satellite can easily retransmit them. With regard to alignment with position matching, the system does not use special hangers to align the laser beams. A special error signal system is provided that aligns the entire satellite so that the beam is clearly aimed at the receiver. According to representatives of the development team, this allows the use of smaller optical components in the system. “If the signal disappears, we can retransmit the data, but if the retransmission is inefficient, that is, if we spend all the time sending retransmissions instead of transmitting new data, we can lose a lot of bandwidth,” said Kurt Schiller, TBIRD systems engineer. "In our ARQ protocol, the receiver informs which frames it received correctly, so it knows which frames need to be retransmitted."

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