The team of composers, musicologists and IT specialists has been working on the project for several months now. First, the algorithm they created analyzed all of Beethoven’s works. Then the AI gave fragments of the 10th symphony so that he could finish writing its missing parts based on everything else.
The algorithm already even issued several trial options, but the music turned out to be too "computerized," scientists say. The symphony will be ready by April 2020, to the 250th anniversary of the composer.
This is not the first time that they are trying to restore the 10th symphony. Beethoven's art researcher Barry Cooper, who found the sketches of the work, published his own version of the melody, but musicologists did not appreciate it. Scientists hope that AI will do better than humans in this matter.
While the release of large volumes of carbon dioxide into the atmosphere continues, some experts and researchers are trying to find the most rational and effective way to get rid of this harmful compound. So, experts from the Massachusetts Institute of Technology have found a new field of application for large reserves of carbon dioxide in the atmosphere - namely, the creation of a new type of battery based on lithium dioxide and carbon. In principle, the idea is interesting and quite feasible, because carbon dioxide is a fairly flexible compound from the point of view of chemistry, but it needs a certain catalyst to start the reaction with lithium.
And as such a catalyst, experts decided to use a carbon electrode. But first, they preliminarily prepared carbon dioxide for conversion into a full-fledged energy source for the battery. This process involves the reactivation of carbon dioxide in an amine solution, into which a liquid electrolyte with a carbon electrode is then added. Experts emphasize that this is the whole unusual battery, since the combination of liquid and solid electrolyte is an extremely unusual concept that has not previously worked.
But thanks to the use of carbon as an electrode and a lithium anode, a rather high-energy chemical reaction is obtained, which starts the properties of the catalyst for carbon dioxide in the electrode. As a result, experts were able to achieve a fairly stable chemical reaction between carbon dioxide and lithium, which was expressed in an excellent battery. In addition, they finalized the formula in such a way that when discharged, the battery converts the residual carbon dioxide into a solid carbon mineral.
This mineral, firstly, can later be used in similar batteries as an additional power source, and can be destroyed much more easily than carbon dioxide in the atmosphere in case of need. The comprehensive development of specialists from MIT is still at the concept stage and is only an approximate vision of how to convert carbon dioxide into something like a battery.
At the Indiegogo Collective Financing Facility, the new X One electric bike has arrived.
The bike is controlled using the application on the smartphone. On the frame of the device there is a special mount in which the smartphone is placed. Thanks to the owner’s authentication by face, a third-party will not be able to use the bike.
The smartphone can also be used to control various functions of the bike using voice commands, and turn signals are turned on by tilting the head to the corresponding side.
The X One frame is designed from composite materials, due to which the bike weighs from 20 to 24 kg. The lights are activated thanks to the light sensor.
The battery is removable, it charges in just 2.5 hours. Its charge is enough to provide 75 km of track at a speed of 45 km / h. It is noted that during riding from a hill, under a hill or during braking, energy is generated, due to which an increase in the course of the bicycle is provided.
The price of X One starts at $ 1999 for the basic version and reaches $ 2199 for the most powerful modification. In retail, a bike will cost between $ 3,999 and $ 4,399.
It turns out that haters rush in social networks with harsh comments because they hope in this way to gain social status. This conclusion was made by American psychologists who applied the concept of “moral grandstanding” to the study of social networks, writes FaceNews.ua.
In social networks, people cling to other people's mistakes, often express radical views and are not ready to listen to another point of view - all to impress.
To study the behavior of people in social networks, psychologists developed a questionnaire in which they asked participants to rate statements like “My moral / political views should inspire others” (desire to gain authority) or “I share my moral / political views so that my opponents feel bad "(desire to dominate).
Participants were asked to take a few more tests. In total, more than a thousand people fell into the sample.
It turned out that the desire to have authority was associated with narcissistic extraversion and extraversion in general, and the tendency to dominate - with narcissistic antagonism (willingness to use others for their own purposes) and lower scores on the scale of consciousness, goodwill and openness.
Psychologists also found that the motivation associated with dominance is more characteristic of those who conflict in social networks.
Often they share some publication in order to make fun of its author. People who want to reinforce their authority, are networked with like-minded people. Their reposts are aimed at presenting themselves in a favorable light.
Researchers have reported in the ACS Journal of Agricultural and Food Chemistry that they have bred yeast for lager, which will extend the shelf life of the beer and lead to improved taste stability, writes FaceNews.ua.
As it turned out, the stale aroma and taste of beer is associated with aldehyde compounds of the type (E) -2-nonenal and acetaldehyde, which are formed by yeast during fermentation and during chemical reactions during storage of the lager.
Brewers used various methods to reduce the level of such compounds in the composition of the beverage by controlling the fermentation conditions or adding antioxidants. However, this did not have a significant effect - beer still deteriorates relatively quickly.
Therefore, a group of scientists led by Qi Li genetically modified camp yeast, which could produce more NADH molecules (reduced nicotinamide adenine dinucleotide).
They, in turn, increase the activity of natural yeast enzymes that can change aldehydes to other types of compounds that affect the taste and shelf life of beer.
During the experiment, the genetic technique of “overexpression” was used, thanks to which the expression level of various genes associated with the synthesis of NADH was artificially increased.
By trial and error, 4 genes were identified, with overexpression of which the number of produced NADH molecules increased. With the further use of modified yeast in brewing, the acetaldehyde content in the camp was 26.3–47.3% less than in the control samples.
In addition, the new strain produced more sulfur dioxide, a natural antioxidant that also prevents the aging of beer. The remaining changes in the composition of the new camp turned out to be insignificant and did not affect the taste characteristics and did not affect the shelf life extended by such a technique.