Science
When you get up suddenly, you will faint. These two movements can be relieved easily.
Many people have the experience of standing up suddenly and feeling dizzy after sitting for too long. In fact, such a small symptom is related to the blood flow of our whole body. Now, a study has found two simple ways to learn them to help you relieve these symptoms immediately.
By jsyeem shekels3 years ago in Earth
Global science
More than a hundred years ago, Edward Charles Pickering, an astronomer at Harvard University in the United States, decided to "take" a picture of the entire night sky, or use thousands of pieces of debris recorded through a telescope to form a complete picture of the night sky. Today, these photos are sealed under thousands of glass negatives at the Harvard Observatory, the earliest detailed record of the universe. Although the idea for the all-sky map was originally put forward by Pickering, the daunting task was mainly accomplished by a group of women known as Harvard computers. Before the advent of computers made up of silicon chips and circuits, scientists in the fields of physics and astronomy used to rely on their hands to deal with complex computing tasks.
By jsyeem shekels3 years ago in Earth
Can the microbes raised by plastic waste help us eat plastic garbage?
The problem of plastic pollution is becoming more and more serious. In addition to familiar measures such as reducing waste and recycling, scientists have also found a powerful ally for us-microbes. Some microbes have evolved the ability to "eat" some plastics, which may soon help us reduce plastic waste and build a greener circular economy.
By jsyeem shekels3 years ago in Earth
Global science
Physiology A new way to lose weight: local hyperthermia activates beige fat Recently, researchers from the School of Life Sciences of East China normal University and the sixth people's Hospital affiliated to Shanghai Jiaotong University have found that beige fat (Beige fat) in human body can activate thermogenesis through local hyperthermia, reduce obesity symptoms and improve metabolic disorders. On March 4, the study was published as a cover article in the journal Cell.
By jsyeem shekels3 years ago in Earth
Has scientific development slowed down today?
According to the report of the Natural Science Foundation of the United States, the world's scientific research output grew at an average annual rate of about 3.8 per cent from 2008 to 2018, based on the number of peer-reviewed scientific and engineering journal papers and conference papers. By 2018, the "output" had exceeded 2.5 million. In terms of the number of papers published, the scale of scientific research today is much larger than in the past. However, after analyzing a large number of published papers, a study published in the Proceedings of the National Academy of Sciences found that the large number of papers published does not reflect the development of science, on the contrary, they even hinder the development of science.
By gaisndm Hawkshaw3 years ago in Earth
Believe in science
Health Antimicrobial resistance has become one of the leading causes of death worldwide. Antimicrobial drugs (Antimicrobial), including antibiotics, antiviral drugs, antifungal drugs and antiparasitic drugs, are used to prevent and treat human, animal and plant infections. However, these microbes can develop resistance and resistance to the drugs that treat them, that is, antimicrobial resistance (Antimicrobial resistance,AMR). Recently, a study published in the Lancet said that AMR has become one of the leading causes of global death and may be more serious than the threat posed by HIV or malaria.
By gaisndm Hawkshaw3 years ago in Earth
Dozens of scientists jointly opposed the use of "artificial volcanic ash" to block out the sun to cool the earth.
On January 17, more than 60 international policy experts and scientists collectively spoke out about the potential dangers of geoengineering projects to lower the earth's surface temperature to slow global warming, and called on the government to stop such projects.
By gaisndm Hawkshaw3 years ago in Earth
