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Ultra slim CD player

15.09.2001

The CD player is only 1,5 cm thick and no more than 15 cm in diameter. High-quality sound is provided by headphones.

The kit also includes a wired remote control, placed in one of the pockets of clothing. The digital display shows the sequence of musical melodies, the minutes and seconds of their playback, as well as the playback time of the entire CD as a whole. A line output is provided for connecting the player to stationary sound-amplifying equipment at home.

From a set of batteries it can work continuously for up to 3,5 days. At the end of the housing there is a socket for external connection of the power adapter.

<< Back: Electric clipper for hair in the nose and ears 25.09.2001

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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 ... >>

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

Acoustic control in the nanoworld 13.10.2023

Engineers from Germany and Switzerland presented innovative microrobots controlled by sound.

These devices respond to fluctuations in the external sound field by maneuvering in narrow tubes. This technology can be adapted for precise intravascular drug delivery and minimally invasive surgery.

The researchers were inspired by the mechanics of movement of spirochete bacteria when developing this concept. The cells of these microorganisms have a spiral shape and, moving in a viscous liquid, move forward.

Engineers have created microrobots using similar principles of movement. Using a 3D printer, they made a microscopic vortex mechanism from a non-toxic polymer measuring 350 microns in length and 100 microns in diameter. The device was placed in a glass tube filled with water. Under the influence of an external acoustic field, the liquid molecules vibrate, creating a vortex that moves the robot forward.

In a series of experiments, scientists demonstrated that by changing the characteristics of sound waves, it is possible to control the speed and direction of the robot's movement. The microrobot responds to sound stimuli with a frequency of 12 to 19 kHz. As the frequency of sound vibrations increases, the robot moves up the pipe, inclined at an angle of 45°.

Scientists around the world are working to develop various systems for precise drug delivery. One common solution is microrobots controlled by a magnetic field. But this approach has challenges and limitations, such as complex manufacturing and massive control equipment. Sound-controlled robots are seen by engineers as a promising alternative solution.

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