Encyclopedia of visual illusions
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Theory of Illusions
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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 Liquid-fueled microscopic robot
17.01.2021
Researchers at the University of Southern California's Autonomous Microrobot Laboratory (AMSL) have created the world's smallest, lightest, fully autonomous crawling microscopic robot. The device, called the RoBeetle, has a mass of just 88 milligrams - roughly the equivalent mass of three grains of rice. The robot uses a fundamentally new type of actuator that functions like an artificial muscle.
The artificial musculature of the RoBeetle robot is powered by controlled catalytic combustion, a technology that will enable the development of a new generation of micro-robots capable of functioning on land, water and air.
Small robots require a highly efficient source of autonomous energy. At the same time, the existing technologies of electric batteries are still inferior in terms of specific energy to liquid fuel. Thus, the specific energy of ordinary methanol (20 MJ/kg) is approximately an order of magnitude higher than that of the most advanced batteries (1,8 MJ/kg).
The "muscles" of RoBeetle are based on thin wires of nitinol - a nickel-titanium alloy with a shape memory effect. Parts made from this material can be deformed, but when heated, they will return to their original form. A platinum catalyst was sprayed onto the filaments, on which methanol vapor is burned. Its warmth causes the robot's nitinol "legs" to contract to "relax" again as it cools.
With a dead weight of just 88 milligrams, the robot can move objects 2,6 times heavier, and installing an additional "fuel tank" of 95 milligrams of methanol provides it with autonomous operation for almost two hours. The authors of the invention assure that if a similar system would use a traditional battery, it would work no more than a few seconds.
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