FREE TECH LIBRARY
Schemes and service manuals for Voxtel mobile phones
You can free and without registration download large Collection of diagrams and service manuals for Voxtel mobile phones, Update 2024 Free archive offering includes circuit diagrams, complete service manuals, detailed troubleshooting instructions, cell phone parts lists. The collection contains diagrams and service manuals in excellent quality on more than 10 models Voxtel cell phones.
You can download other books, magazines, manuals, as well as diagrams and service manuals in our Free online technical library.
Contents of the collection of diagrams and service manuals:
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
Hydrogen peroxide rocket fuel
28.02.2022
Hydrogen peroxide is a less toxic alternative to hydrazine, a widely used aerospace fuel for low and medium thrust engines. Hydrazine is a carcinogen and requires additional equipment for its use. And this increases the price of both the fuel itself and the launch of missiles.
At the same time, hydrogen peroxide is non-toxic to humans and is widely used in everyday life, for example, for bleaching hair or treating wounds. But to produce fuel from hydrogen peroxide, a highly efficient catalyst is required. It is usually created using expensive precious metals such as silver or platinum.
University of Canterbury Chemical and Process Engineering PhD student Simon Reid has collaborated with Callaghan Innovation to develop a catalyst with a special ceramic layer that can be 3D printed. It increases the efficiency of processing concentrated hydrogen peroxide into rocket fuel.
The passage of liquid hydrogen peroxide over the catalyst bed speeds up the decomposition reaction. The reaction dissociates the molecule, turning it into water and oxygen. It is the decay of the molecule that produces a large amount of energy and heat. The heat vaporizes the water and as a result the hot gas passes through the nozzle and produces thrust.
The goal of Simon's research is to improve the design of the catalyst to increase the thrust generated by hydrogen peroxide. To achieve this, the graduate student used a special form, the gyroid, a three-dimensional repeating structure with minimal surface area, discovered by Alan Schoen in 1970.
Several companies are seriously considering using hydrogen peroxide. The scientist expects in the future to offer a more environmentally friendly alternative to hydrazine and make the aerospace industry a little safer.
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese
Link to download the collection
Latest news of science and technology, new electronics:
All languages of this page