Astronomy. Simple answers to complex questions

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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

Cells communicate with each other using sugars. 04.03.2019

Scientists from the University of Pennsylvania, Temple University (USA) and the RWTH Aachen University (Germany) used a new way to study cells - and with it they discovered that sugar molecules play a key role in cellular communication, acting as "channels" that cells and proteins are used to communicate with each other.

The human body is made up of 30-40 million cells, a large and complex network of blood cells, neurons, and specialized cells that make up organs and tissues. Until now, it has not been clear what mechanisms control the communication between them.

Using artificial synthetic cells as a model, lead author Cesar Rodriguez-Emmenegger has discovered a way to study cell membranes using atomic force microscopy. This method makes it possible to study the micromere in a three-dimensional volume.

The new approach makes it possible to image cells at very high resolution: they show shapes and structures on a scale of less than a nanometer, which is almost 10000 times smaller than the thickness of a human hair. The working group then built a model that calculates how structural elements are related to cell function.

The study is the first example of a diffraction technique that can be used in the study of whole synthetic cells. Previously, cells were divided into parts and each part was photographed separately. Using the new method, the scientists found that a low concentration of sugars on the surface of the cell membrane leads to their increased reactivity with proteins on the membranes of other cells. Sugars on the surface of synthetic cells are automatically organized into thin lamellar-layered and hexagonal structures. Thanks to these forms, which form sugar molecules, synthetic cells become recognizable to other cells.

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