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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 ... >>
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 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
information engine
12.11.2022
The highlight of the year was the development of the so-called information engine, fueled by information. The prototype engine did the job solely by calculation, without spending any energy on it. Unfortunately, this discovery works only in the microcosm.
We all know about such a phenomenon as thermal noise. In the normal state, thermal fluctuations are random in nature and cannot do useful work. You can correct the situation with the help of feedback - information that could cut off the "braking" oscillations and fix the "working" ones. Then each time the engine would do only useful work, without spending energy on it in the form of fuel. The role of fuel in such a system would be played by information - this is a system for determining the perfect work and feedback that controls the engine.
A group of physicists from Simon Fraser University in Burnab, British Columbia, and the Institute for Fundamental Questions (FQXi) conducted an experiment in which a bacterium-sized glass bead was moved in a given direction by means of thermal noise and information about its position. The bead was placed in water and caught in a laser trap. Thermal vibrations of water molecules pushed the bead in all possible directions, but thanks to measurements of its position in water and feedback, the optical trap only moved in space (and kept the bead at a new level) when the movement went in the right direction.
The accuracy of determining the position of the bead in space left much to be desired, and thus the work of the "information" engine was small. It was possible to increase the efficiency of the engine after the inclusion in the algorithm of the so-called "Baesian solution estimation" - a statistical method that largely predicted the new position of the bead than measured it.
In fact, the "fuel" of such an engine was only information about the approximate position of the bead obtained by measurement, a calculation algorithm that reduces the measurement error, and a feedback mechanism that fixes the bead (work performed) at a new level. The process of performing the work was carried out by thermal noise. You can say it's free. Now scientists are thinking about experiments on how to do similar work from other sources of noise. If everything works out, it will be possible to receive energy from sources that the world has not yet dreamed of.
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