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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.

Research results

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.

Plastic can be recycled several times.

Australian scientists have decided to deal with the low efficiency of the process of growing bananas and found application for their stems. Now they can produce environmentally friendly plastic that can be recycled several times.

According to employees of the University of South Wales, growing bananas is a very expensive activity, since only a small part (about 12%) of the plants grown is eaten. The vertical stems that make up the bulk of the plants are usually simply thrown away.

Professors Jayashri Arkot and Martina Stenzel, who drew attention to the problem, created a technology for the production of plastic, which is based on raw materials, which are waste from the production of bananas. Scientists chopped the vertical trunks of bananas (pseudostems) and dried the resulting mass in a high-temperature oven, and then made fine powder from it. The powder was mildly treated with chemicals, whereby nanocellulose was isolated from it. This nanocellulose is the basis of environmentally friendly plastic.

"The result of the process is sheets resembling parchment paper in structure. Biodegradable packaging for food products can be made from this material. Plastic can be processed several times, and then left in the soil for decomposition without fear," the authors of the technology note.

It became known that the 23-year-old Briton Lucy Hughes mixed fish scales and skin together with red algae and created biodegradable plastic.

This is stated in the plot of the NTD channel. The inventor is surprised: “Why do we need hundreds of artificial polymers, if all of this already exists in nature?”

Lucy named her invention MarinaTex. Its main advantage is that, unlike most other types of plastic, it decomposes at ordinary temperatures in just 4-6 weeks. Thus, this film can be disposed of in compost even at home.

Lucy said that the idea to create such a bioplastics came to her when she went around at a fish processing plant. There, the girl saw that a huge amount of fish waste was simply thrown away. Then the girl needed to conduct about a hundred experiments before choosing the right ratio of components.

Interestingly, Lucy conducted her scientific experiments in her kitchen, without major funding. She found that 1400 MarinaTex bags can be made from one medium fish.

Over the next five years, SpaceX plans to develop a fully fledged autonomous life support system, designed with Martian conditions in mind. We are talking about equipment that extracts resources and energy, filtration technologies, devices for the production of breathable air. The entrepreneur plans to deliver all this to Mars with the first cargo shuttles already in 2022 using a BFR ("Big Fucking Rocket") rocket of its own production. According to the entrepreneur, all the forces and future funds of the company will go to the development of this rocket. Musk plans to build it on the money earned from satellite launches and cargo deliveries to the ISS, RBC reports.

Colonization of Mars will take place "waves." The first colonists will have to go to the Red Planet already in 2024. Their goal is to deploy a base on the surface of Mars and prepare a springboard for future settlers. Those, in turn, will continue to expand the colony and wait for the next arrivals, and so on. Of course, these terms can be called conditional - the goal is too ambitious.

In addition, Musk proposed using a similar system to colonize the Moon - NASA leaders have already become interested in this proposal, who in recent years have often talked about the possibility of humanity returning to Earth’s satellite. At the same time, lunar missions have even more chances to come true - not only SpaceX and NASA are interested in the colonization of the moon, but also the space agency of Europe, China and the domestic Roscosmos. So if the Mask company manages to interest potential investors, the human foot will set foot on the Earth’s satellite even earlier than on the surface of Mars.

The entrepreneur has already posted on his Instagram a render of a hypothetical lunar colony.

Musk did not forget about the Earth, putting forward another proposal to create a new type of public transport. We are talking about missile flights, thanks to which you can get anywhere in the world in no more than an hour. Moreover, the cost of the flight will be comparable to the cost of an economy class ticket on an airplane.

SpaceX released a video illustrating the technology of the entire process. In the reservoirs of large cities, it is proposed to build floating platforms, which are launching pads. Passengers (from 80 to 200 people) will get to them in boats and board the same BFR rockets that will be used for missions to Mars. The spacecraft will then enter the Earth’s orbit and will be divided into two parts: one will fly back, the second - to the destination. Thus, you can get from New York to Shanghai in just 39 minutes, from Hong Kong to Singapore in 22, from London to Dubai in 29.

If this method of transportation is implemented, then it will become the fastest in the history of mankind - the maximum speed of a rocket is 29,000 km / h. True, this is unlikely to happen soon. First of all, passengers will probably experience crazy overloads, which means that not everyone will decide to fly in this way. In addition, there remains a safety issue: the plane is statistically considered the safest mode of transport, while SpaceX has learned to put rockets back into Earth back to Earth relatively recently.