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DateDate: 25-09-2019, 05:51

Can artificial intelligence develop and become more complex if competitive conditions are created for it, such as those in which life has been since its appearance on Earth? Will natural selection tools work for him in a virtual environment? These questions were asked by scientists at OpenAI, a nonprofit research company engaged in artificial intelligence.
Scientists have conducted an amazing experiment with artificial evolution. They created a virtual space, populated it with self-learning bots and made them play hide and seek again and again. A total of about 500 million rounds of the game were held. Over time, scientists began to notice that AI itself develops various strategies and learns to counteract the techniques developed by other bots.
At first, search bots (hunters) and hiding bots (victims) simply ran around the game space. But after about 25 million games, the victims learned to use boxes to block the exits and barricade themselves inside the rooms. They also developed a strategy for flocking behavior, which allowed them to work together and transfer boxes to each other, quickly blocking exits from predators.
In response to this, after about 75 million games, predators learned to get around barricades, move and use ramps to overcome obstacles.
After 85 million games, the victims learned to take the ramps with them and hide them inside their “fort”, depriving the predators of a valuable tool.
According to OpenAI's Bowen Baker, all of this is one of the most amazing examples of how evolutionary natural selection tools work in virtual space. “As soon as one team learns a new strategy, this creates pressure on the other team, forcing it to adapt. This is an interesting analogue of how humans evolved on Earth, where there was constant competition between organisms, ”says Baker.
The development of bots did not stop. At some point, they learned to use vulnerabilities and bugs in their virtual world. For example, victims learned to get rid of dangerous ramps forever by pushing them through wall textures. According to scientists, this suggests that artificial intelligence can find such solutions to complex problems that people would not even think about. And this also means that, in case of an unforeseen situation, it will be much more difficult to restrain an out-of-control AI than it might seem to us.
Source: igate.com.ua

DateDate: 24-09-2019, 05:54
China has developed the world's first portable anti-riot gun.
The tool was created in conjunction with military and law enforcement agencies and is designed to disperse the crowd using focused waves of low-frequency sound, according to a message in the South China Morning Post (SCMP).
According to scientists, the “biological effect” of the device is extreme discomfort with vibrations in the eardrum, eyeballs, stomach, liver and brain.
Some studies have shown that low-frequency sounds can cause dizziness, fatigue, irritation, headaches, and even an increased heart rate.
China was faced with the problem of how to deal effectively with the ongoing protests for democracy in Hong Kong, which sometimes became violent and led to a stop at the city airport.
 
Riots in Hong Kong
Professor Xie Xujuan, a leading researcher at the project, told the Chinese media that the device is powered by a tube-shaped vessel containing inert gas. When heated, the gas particles vibrate and a deep monotonous sound is produced.
 
Professor Xie Sujuan Explains the Work of the Government Scientific Commission
However, the professor did not begin to disclose details of the frequency of the device or its range.
The prototype passed field and third-party tests, and scientists completed an assessment of its effect on the body.


DateDate: 23-09-2019, 05:54

Along with an increase in the number of optical pulses, new crystals increase their power.
Physicists have long developed special optical resonators capable of converting laser light into ultrashort pulses moving around the circumference of these resonators. Moreover, these pulses, called "dissipative Kerr solitons", can "multiply" inside the resonator, the shape of which determines the shape and other parameters of the light pulses.
When solitons leave the limits of the resonator, they form a series of pulses repeating at stable time intervals, and the smaller the diameter of the resonator, the shorter the pulse repetition time interval, which can go into the range of hundreds of gigahertz. This technology can be used in the future to increase the efficiency and quality of optical communication lines, or become the basis for new ultra-high-speed LiDAR optical scanners that provide submicron accuracy.
 
Unfortunately, when trying to further reduce the diameter of the ring resonator, scientists were faced with the well-known phenomenon of increasing light losses, overcoming steep bends in its path. This problem is very well known in fiber optics, and in this case it determines that the sizes of microresonators cannot be less than several tens of microns, which, in turn, limits the maximum frequency of repetition of light pulses.
Not so long ago, a group of physicists from the Swiss Federal Polytechnic University of Lausanne (Swiss Ecole Polytechnique Federale de Lausanne, EPFL) found a way around the limitation described above, completely "decoupling" the pulse repetition rate from the size of the microresonator. In the resonator created by them, the maximum possible number of Kerr solitons arises and the exact interval between them is observed. This method of controlling light can be considered an optical analogue of atomic chains in crystalline solids, and, thus, this resonator is called the "perfect soliton crystal" (perfect soliton crystals, PSC).
One of the remarkable properties of such soliton crystals is that along with an increase in the number of optical pulses, these crystals also increase their power, i.e. the amount of energy enclosed in them.
"The technology developed by us allows us to obtain a series of optical pulses with a very high repetition rate, which can reach several terahertz, while it uses fairly ordinary optical ring microresonators," the researchers write, "all this can be used in spectroscopic technologies, in technologies measuring distances and as a source of radiation in the terahertz range having a very low level of intrinsic noise. "

DateDate: 22-09-2019, 08:21
In Ukraine, a functional electronic hand prosthesis was developed.
This is reported by Facts.
Anna Belevantseva from Kiev, a member of the Ukrainian startup team that created her own bionic prosthesis, said: “The need for such prostheses is great. Two years ago, we set ourselves the goal of creating a modern bionic prosthesis that would be much cheaper than foreign ones and surpass them in its characteristics. And now the prototype is fully ready for clinical trials. Based on their results, in about a month we plan to present a prosthesis ready for use. It was created by a team of five people. "
About what happened, Anna said this: “The team of our engineers had a chance to create a more advanced prosthesis - using the most advanced technical innovations. They coped with this task. They achieved, for example, that each finger of the prosthesis can move independently (this is not the case in competitors' models). At the same time, the cost of our product is from six to twelve thousand dollars. That is, more than four times cheaper than competitors.
It is important to note that we regularly consult via Skype or phone with prosthetists from the USA, Canada, Poland. And also with their Ukrainian colleagues and doctors with experience working with patients who have bionic prostheses. In Ukraine, they provided approximately 15 ATO veterans. ”


DateDate: 21-09-2019, 06:03

The American corporation Boeing has successfully completed the first test flight of the unmanned aerial tanker MQ-25 Stingray. This was reported by the press service of the aircraft company.
The MQ-25 test facility, known as the T1, performed an autonomous two-hour flight under the supervision of Boeing test pilots flying from a ground control post at MidAmerica St. Louis Airport in Muscat, Illinois, where the test program is based. The aircraft completed autonomous taxiing and take-off, and then flew along a predetermined route to verify the basic functions of the flight and operations with the ground control station.
The MQ-25 will provide the Navy with much-needed unmanned aerial refueling capabilities on the basis of an aircraft carrier. This will expand the flight range of the air carrier wing.
T1 received its FAA pilot certificate of airworthiness in September, certifying that the aircraft meets Agency requirements for a safe flight. Testing will continue with T1 for further early exploration and discovery, which promotes core systems and software development.