SCIENTIFIC EDUCATIONAL CENTER science idea
Chemists have discovered a new type of reactions
2021-08-08 12:27
Scientists of St. Petersburg State University have discovered a new type of reactions, as a result of which it is possible to synthesize complex polycyclic organic molecules. The source code is unsaturated compounds, that is, with double or triple inter-carbon bonds, which in their structure resemble a Rubik's snake. This reaction allowed scientists to transform easily accessible and widely used in chem...
Another step towards a quantum computer: physicists unveil the condensation of ‘liquid light’ in a semiconductor crystal just one-atom-thick
2021-08-07 18:35
An international team of physicists has shown experimentally for the first time how a Bose-Einstein condensate — tens of thousands of quanta of ‘liquid light’ — is formed in the thinnest monatomic film of a semiconductor crystal. The team includes the head of the Spin Optics Laboratory at St Petersburg University, Professor Alexey Kavokin. This discovery will help create new types of lasers capable of produ...
Major Atlantic ocean current system might be approaching critical threshold
2021-08-06 12:08
The major Atlantic ocean current, to which also the Gulf stream belongs, may have been losing stability in the course of the last century. This is shown in a new study published in Nature Climate Change. The Atlantic Meridional Overturning Circulation, or AMOC, transports warm water masses from the tropics northward at the ocean surface and cold water southward at the ocean bottom, which is most relevant fo...
Archaeologists discover oldest human burial site in Africa
2021-08-05 12:03
In the Kenyan cave of Panga-ya-Saidi, archaeologists have discovered a burial site with an age of 78.3 thousand years, from the Middle Stone Age. According to scientists, this burial pit with skeletal remains can be called the oldest on the African continent found so far.
The first bone fragments were identified in 2013, but only four years later, under the" floor " of Panga-ya-Saidi, at a depth of several...
The "bulkheads" between hepatocytes determine the unique structure of the liver
2021-08-04 13:11
Researchers from Skoltech and their colleagues from Germany and the U.S. have discovered structures responsible for the shape of bile canaliculi, a network of canals in the liver. Published in the Journal of Cell Biology, their study also reveals the gene essential for the formation of these structures, which the team compares to boat bulkheads.
The body incorporates numerous tubular structures, such as bl...
Scientists have predicted mathematical abilities by measuring the levels of neurotransmitters
2021-08-03 14:12
Do you have any mathematical abilities? A new study shows that levels of two key neurotransmitters can predict a person's mathematical abilities, suggesting that brain chemistry may play a role for those who find math easy.
The new study involved 255 subjects, from six-year-old schoolchildren to university students. The study focused on two neurotransmitters that are known to play a role in brain plast...
The heat wave caused the accelerated melting of the glaciers of Greenland
2021-08-02 10:24
According to Danish researchers, the Greenland ice sheet experienced a "massive melting" during a heat wave, as a result of which the temperature was more than 10 degrees above seasonal norms.
Since Wednesday, the ice sheet covering the vast Arctic territory has been melting by about eight billion tons per day, which is twice the average norm in the summer, according to the website Polar Portal, which is r...
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