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DateDate: 20-04-2019, 06:36
Scientists from Switzerland used the CRISPR tools to create a biocomputer.
Scientists got a dual-core computer in a living cell
Scientists believe that a living cell is a ready-made computer that can process data from the outside. Then it is fair to assume that the whole human body is one big supercomputer with extremely low power consumption.
The key goal of synthetic biology is to study and use natural metabolic processes to create logical circuits. Scientists from Zurich used a modified version of CRISPR to create a new type of Cas9 enzyme. It can work as an elementary processor — read information from RNA molecules, and also activate certain genes that will trigger the synthesis of proteins that are easy to detect.
It works as the main logic element, on the basis of which all the schemes of processing binary code are developed. Scientists managed to place two such processing elements in a single cell and obtained a functioning computational module. If you enter information in the form of biomarkers, it will calculate and present the answer - yes or no. Either one substance, for the analysis of which it is programmed, or another.
However, for the analysis of more complex biomarkers of a single computing element will not be enough, but if you combine many modules into a single structure, we will achieve the solution of the problem that half a century ago was solved on printed circuit boards. Now scientists can repeat the same success, but with the use of living cells and learn how to literally “grow” supercomputers with enormous productivity, which require a couple of spoonfuls of sugar to work.


DateDate: 19-04-2019, 06:00
Scientists were able to figure out how to fill a tattoo without needles. Make a picture on the body will help a special laser, it will not need to re-visit the salon.
About this reports portal Days24.
Scientists said that tattooing can be done in a more painless way than putting a special ink under the skin with a needle. They claim that the image can be applied to the body with a laser. Experts said that the liquid inside the device heats up and gets under the skin of a person through the so-called jet. The new method of tattooing will help customers protect themselves from various diseases and damage to the skin. Scientists also noted that this method does not require repeated visits to the salon, because the image will be of high quality from the first time.
Researchers have warned, in order to make a picture on the body with a laser, you first need to consult a doctor for advice. Also, the specialist will give all the necessary advice on caring for a tattoo.
Meanwhile, previously forbidden places on the body for tattooing were named.


DateDate: 18-04-2019, 05:53

A scientist from the Rochester Institute of Technology and experts from the University of Rochester have teamed up to create a laser based on sound using optical tweezers developed by the 2018 Nobel Prize in Physics, Arthur Eshkin.
In a Nature Photonics journal article, researchers describe a phonon laser using an optically levitated nanoparticle. Phonon is a quantum of energy associated with a sound wave. Using optical tweezers, one can test the limits of quantum effects in isolation and eliminate physical disturbances from the environment. Scientists have studied the mechanical vibrations of a nanoparticle lifted into the air by the power of an optical laser beam.
Graphene foam retains its elasticity even after immersion in liquid helium
Graphene foam retains its elasticity even after immersion in liquid helium
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“Measuring the position of a nanoparticle by registering the light it scatters and sending this information back to the beam of tweezers allows us to create a laser-like situation,” says Mishkat Bhattacharya from the Rochester Institute of Technology. “Mechanical vibrations become intense and perfectly synchronized — just like electromagnetic waves coming from the optical laser. "
Since the waves emanating from the laser pointer are synchronous, the beam can travel long distances without being scattered in all directions, unlike the light of the Sun or a light bulb. In a standard optical laser, the properties of the light flux are controlled by the material from which the laser is made. It is interesting that in the phonon laser the roles of light and matter are opposite: the motion of a material particle is governed by optical feedback.
"We are very excited about what applications this device may have - especially with regard to sensing and information processing, given that the optical laser has many applications and continues to evolve," said Bhattacharya.
He also noted that the phonon laser promises to help in research in the field of fundamental physics, including the development of the famous mental experiment "Schrödinger's cat", which can exist in two states at the same time.
Researchers turned to the public to help explore gravitational waves.
During the study, Bhattacharya collaborated with a group led by Nick Vamivakas from the Institute of Optics of the University of Rochester. The theoretical team Bhattacharya, who worked on the article, also included Venchao Ge and Pardip Kumar. Vamyvakas, in turn, supervised the work of the graduate students of the University of Rochester, Robert Pettit and Danika Lunz-Martin, the former graduate student Levi Neukirch, and the candidate of sciences Justin Schulz.

DateDate: 17-04-2019, 05:52

While China is preparing to restart its stalled nuclear program after a three-year moratorium, scientists from the Laboratory of Hefei District are instead engaged in nuclear fusion instead of grossly splitting atoms, dreaming of "putting the Sun in a box."
China has already spent about $ 900 million building a tokamak, which turns hydrogen isotopes into a plasma, fusing them together and releasing energy. Sun Yuntao, deputy director of the Institute of Plasma Physics at the Hefei Institute of Physics, said that despite the technological difficulties, the project received another funding of the same amount, and new construction plans are already being developed, Reuters writes.
“In five years we will start building a thermonuclear reactor. It will take another 10 years, after which we will construct a generator and start generating energy by about 2040, ”he said.
Although thermonuclear energy can make a revolution in the energy sector, until now, engineers have not been able to achieve an economically viable technology in which the energy output would exceed the costs. As skeptics express, fusion technology seems achievable 50 years later, as it was half a century ago.
China has been studying the synthesis reaction since 1958, but at this stage it is still a question of international cooperation, rather than competition, said Sun. In particular, the People's Republic of China participates in the ITER project and is responsible for creating 9% of the components of this reactor, which, according to the plan, should start producing the first plasma in 2025.

DateDate: 16-04-2019, 05:45

Xiaomi has developed a new model of electric bike.
This is the second version and it is called HIMO C20, reports infocar portal. If the first bike was offered at a price of 260 dollars, then the new one costs already 375 dollars.
The model has a twenty-inch frame, a trip computer on the steering wheel with an indicator of speed, mileage and charge level. The new items from Xiaomi range of eighty kilometers. Also, the new lithium-ion battery, which weighs two and a half kilograms. He charged in six hours.
Three modes of operation are available - only on the electric, with an electric motor as an assistant or just on the pedals without the participation of an electric motor.
The total weight is twenty-one kilograms. It develops a maximum speed of up to twenty-five kilometers per hour. Its length is about one and a half meters, and its width is 610.
The HIMO C20 also has a handy portable pump hidden in the seat, as well as an LED flashlight. The bike itself is foldable, foldable. He has a folding steering wheel and pedals, which makes it even more convenient to transport it in transport.
The Xiaomi device will open the car even if it is thoroughly wet.
It can be used both in cars and in a motorcycle.
Xiaomi is preparing to supplement the range of solutions of the branded collective financing platform with a new product - a car lock with an integrated fingerprint scanner.
Komarovsky told, in which cases hiccups need to run to the doctor: it is important to know
Komarovsky told, in which cases hiccups need to run to the doctor: it is important to know
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Judging by the picture, such a lock will regularly cope with its capabilities even if it is thoroughly wet. The Chinese castle Mars Exploration Technology, founded in May 2015, is behind this castle. She is engaged in industrial design and development of a wide variety of devices, from drones to virtual reality helmets.
There are already similar solutions on the market, their cost is on average $ 340. An analogue of Xiaomi should be no more expensive and at least not worse in terms of functionality. The device must officially submit on April 9th.
Also, Xiaomi plans this year to release a new firmware MIUI 11 for their Mi and Redmi smartphones. This firmware will be available for more than 40 models. But for some smartphones update will not be available due to outdated hardware.
According to the manufacturer of smartphones, their technical equipment does not allow for full-fledged work on new firmware. Thus, MIUI 11 will not receive the following seven models of Xiaomi Redmi Note, 3S, 3X, 4, 4A, Pro.
And the owners of the above smartphones should be prepared for the fact that soon the new software for their devices will cease to be released, including patches for the security system from Google.