Regenerative AM-FM receiver. Encyclopedia of radio electronics and electrical engineering
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Latest news of science and technology, new electronics:
Artificial leather for touch emulation
15.04.2024
In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>
Petgugu Global cat litter
15.04.2024
Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>
The attractiveness of caring men
14.04.2024
The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>
| Random news from the Archive Nanoparticles in silk
25.10.2009
Chemists from the USA have learned how to encrust silk with silver nanoparticles. Precious metal ions have the ability to precipitate from solution on biological fibers and recover to pure metal, forming nanoparticles associated with these fibers. In this case, it is possible to solve two problems: to prevent nanoparticles from sticking together and to evenly distribute them over the volume or surface of the material.
It was this ability of theirs that scientists from the Georgia Institute of Technology, led by Professor Vladimir Tsukryuk, took advantage of. They dissolved silkworm cocoons and the resulting solution was applied as a thin film on a silicon substrate. Then, a template pattern was drawn on it by nanolithography and placed in a solution containing silver ions.
After a few days or even weeks, nanoparticles were deposited on the silk, and a flexible elastic film of the composite was obtained with a thickness of only 100 nm. Its obvious use is a bactericidal dressing, containing, although an insignificant amount of silver, but this does not lose its effectiveness.
However, the authors believe that it can be used to make flexible mirrors that reflect light at a certain wavelength, as well as self-cleaning coatings, catalysts, and possibly flexible batteries. “If we mix proteins that can combine with both gold and silver, then it will be possible to obtain a composite of nanoparticles of the two metals. Since their properties differ, this will be a very interesting material,” says Yevgenia Kharlampieva, a participant in the work.
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