SCIENTIFIC EDUCATIONAL CENTER science idea

400 thousand years ago, the inhabitants of Italy made tools from elephant bones
2021-08-31 18:44 A team of researchers from Italy, the United States, Switzerland and France found that about 400 thousand years ago, the ancient inhabitants of Castel di Guido, on the outskirts of modern Rome, made a large number of tools from elephant bones. In the manufacture of these tools, methods were used that became widespread only a hundred thousand years later. At that time, there was a ravine with a flowing stre...
MSU chemists have come up with an environmentally friendly way to extract food dyes
2021-08-30 12:47 Employees of the Faculty of Chemistry of Moscow State University have developed effective extraction systems and methods for extracting food dyes. The work is published in the Microchemical Journal. Next up are proteins, vitamins, and steroids. Extraction is a widely used method of separating, separating, and concentrating substances with a solvent. This is the most important stage in preparing the sample ...
Treatment of deafness: scientists have printed the eardrum on a 3D printer
2021-08-29 20:06 According to the World Health Organization, by 2050, about 2.5 billion people will suffer from hearing problems worldwide. The reasons will be different, ranging from the consequences of diseases and ending with injuries. And in at least 700 million cases, the situation will be so difficult that people will need urgent medical care. Recently, American scientists have learned to print implants of eardrums on...
More children than ever before live as migrants or refugees, outside their birth countries – UNICEF
2021-08-28 15:01 More girls and boys than ever are on the move, with 35.5 million having lived outside their country of birth in 2020 and an additional 23.3 million displaced internally, according to a new report by the UN Children’s Fund (UNICEF) published on Friday. The report, Uncertain Pathways, found that over the course of the year, there were almost 15 million new displacements or 41,000 each day, and that boys outn...
Physicists have directly observed the movement of atoms in liquid water molecules
2021-08-27 20:52 For the first time, an international group of experimental physicists from the United States and Sweden directly observed how hydrogen atoms in water molecules pull and push neighboring molecules when they are excited by laser light. Each water molecule contains one oxygen atom and two hydrogen atoms, and a network of hydrogen bonds between positively charged hydrogen atoms in one molecule and negatively c...
The main structures of dark RNA are described
2021-08-26 17:51 Non-coding RNA in the cell enters some important organelles, regulates protein synthesis, accelerates individual reactions and participates in other biologically important processes. Often, the functioning of non-coding RNAs is ensured by stable interactions of the nucleotides of one or more RNA molecules. A bioinformatician from MIPT and the Institute of Mathematical Problems of Biology of the Russian Acad...
Scientists have found out when the first quadrupeds appeared on Earth
2021-08-25 17:59 American scientists, using mathematical methods of Bayesian modeling, restored the dynamics of the evolution of the first quadrupeds, which descended from fish 400-360 million years ago and gave rise to all vertebrate inhabitants of the land.One of the most important evolutionary events in the history of life on Earth is the transition from fish to quadrupeds — vertebrates with limbs. It happened somewhere ...

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