SCIENTIFIC EDUCATIONAL CENTER science idea
Mysterious Extinction Kills 70 Percent of Sharks on Earth
2021-06-09 11:10
Scientists have discovered a previously unknown shark mass extinction event that wiped out the global population of these marine predators about 19 million years ago. It is currently a mystery what happened to the shark population, but the authors of the study say that as a result of this event, sharks almost completely disappeared from the world's oceans.
Sharks and their ancestors have been swimming ...
Blood-based Biomarker Can Detect 13 Neurodegenerative Diseases
2021-06-08 13:12
A new study published in the journal Nature Communications reports that a single blood-based biomarker can detect the presence of 13 neurodegenerative diseases, from frontotemporal dementia to motor neuron disease.
The test cannot specifically distinguish between each disorder, but is instead proposed as a way to determine whether patients suffer from memory problems from the early stages of the neurodegen...
The island of stability of heavy elements has not yet been reached
2021-06-07 19:43
Theories about the possible existence of superheavy elements appeared in the 1960s. Their longest-lived cores may give rise to a so-called "island of stability" far beyond Uranus. However, a new study by nuclear physicists at Lund University shows that the 50-year-old manifesto of nuclear physics must now be revised.
The heaviest element in nature is uranium, whose nucleus contains 92 protons and 146 neutro...
Why the electrons don't get into the nucleus?
2021-06-06 18:19
The electrons in an atom actually get into the nucleus. In fact, the electrons in the s - states tend to peak at the nucleus. Electrons are not small balls that can fall into the nucleus under the influence of electrostatic attraction.
Rather, electrons are quantized wave functions that propagate through space and can sometimes act as particles in a limited way. An electron in an atom propagates according ...
INTERVIEW Russian language of the UN, what is it?
2021-06-05 16:04
On June 6, the UN celebrates the Day of the Russian Language. The tradition of honoring the six official languages of the United Nations was born in 2010, and a year later this holiday, celebrated on the birthday of the poet Alexander Pushkin, was added to the official calendar in Russia by presidential decree. At the UN, Russian is spoken at meetings of the General Assembly and the Security Council, at con...
Scientists have measured the mass of human chromosomes for the first time
2021-06-04 12:46
A team of scientists used coherent X-rays, available on the latest synchrotron sources, to determine the mass of all 46 human chromosomes. Their weight was more than expected.
Scientists from the Center for Nanotechnology at University College London (UK) and the State University of New Mexico (USA) for the first time measured the mass of chromosomes in the human body using X-rays. As described in the stud...
‘Simply no scenario’ where humanity can survive on an ocean-free planet
2021-06-03 17:34
The world must harness “clear, transformative and actionable solutions” to address the ocean crisis, the President of the UN General Assembly said on Tuesday, opening a meeting to generate momentum towards the 2022 UN Ocean Conference, when public health safety measures allow.
“Simply speaking, our relationship with our planet’s ocean must change”, Assembly President Volkan Bozkir told a high-level themat...
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