jsyeem shekels
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Do you really hate sports? These scientific advice can help you get moving.
Early humans didn't like sports. Throughout human history, in most of the time, human food resources are so scarce that they have to search everywhere for food. But once they are full, they will stop to rest and save their strength, because they do not know where the next meal will be. So, you want to sit down and watch Netflix? Instead of going to the gym, this is actually a natural tendency of human beings. This may give you some comfort when you are resting.
By jsyeem shekels2 years ago in Earth
For the first time! Injection of young cerebrospinal fluid may reverse brain aging
Normally, our brains don't get water, but there is water in it, about 150 to 270 milliliters. The water is colorless, transparent and like plasma. Also known as cerebrospinal fluid, it fills the brain and spinal cord and is produced by the choroid plexus of the lateral ventricle, the third and fourth ventricles. In order to maintain volume stability, excess cerebrospinal fluid will also be excreted by the spinal cord.
By jsyeem shekels2 years ago in Earth
Tall and handsome long-legged little brother, may be XXY, this kind of disease is not uncommon
This chromosome abnormality, which often causes infertility, is called Klinefelter syndrome, where boys have one or more extra X chromosomes in addition to XY chromosomes.
By jsyeem shekels2 years ago in Earth
To date, the most complete map of human cells has been released; plants have been planted on lunar soil for the first time | Global scientific news
The most complete map of human cells has been released so far. Today, Science magazine published four papers simultaneously, publishing the most comprehensive pan-tissue human single cell map constructed by scientists of the International Union of Human Cell Atlas. This map, which contains 33 human tissues, more than 1 million cells and more than 500 cell types, provides extremely important insights into common and rare diseases, vaccine development, anti-tumor immunity and regenerative medicine.
By jsyeem shekels2 years ago in Earth
This kind of goose was once an endangered species, but now people have to give them family planning again.
Originally a migratory bird, the goose migrates back and forth between Canada and the United States every year, thanks to its huge size (wingspan 1.27 to 1.85 meters, weight 2.6 to 6.5 kilograms) and its natural aggressiveness, it has few natural enemies in adulthood, only hyenas, gray wolves, golden eagles, sea eagles, snow owls and so on. As a result, their original habitat is so vast that they can be seen from northern North America to areas close to Central America.
By jsyeem shekels2 years ago in Earth
Zhu Rong discovers that water also exists on Mars recently | Global scientific news
? COVID-19 epidemic? China's cancellation of zero clearance policy may trigger a wave of O'Micron infection. China's dynamic zeroing policy, designed to cut off the chain of transmission and quickly fight the epidemic, has been used to deal with the more contagious mutant novel coronavirus since August 2021. Recently, researchers from Fudan University predicted COVID-19 's disease burden after China abolished the dynamic zero clearance policy. The results show that if the current dynamic zero clearance policy is abolished, it may lead to a large number of O'Micron infection. The study is published in Nature Medicine.
By jsyeem shekels2 years ago in Earth
New O'Micron variants BA.4 and BA.5 are spreading rapidly in South Africa, faster than BA.2. | Global science news
? Novel coronavirus? New O'Micron mutants BA.4 and BA.5 are spreading rapidly in South Africa. New Omicron variants BA.4 and BA.5, first detected by the South African Genome Monitoring Network in mid-December 2021 and January 2022, are spreading rapidly in South Africa, according to Nature's website. According to Science News, from 17 April to 7 May, the number of new cases per day in South Africa increased rapidly from about 1000 to 10,000. At present, these two seed variants have been found in more than a dozen countries (mainly in Europe). BA.4 and BA.5 spread slightly faster than Omicron's BA.2 sublineage, while BA.2 was more contagious than the first Omicron variant BA.1.
By jsyeem shekels2 years ago in Earth
The biggest confusion for cat owners: why do cats have to wake people up in the early hours of the morning?
When you have to attend an important meeting in the morning, you are in a sweet dream at 4: 00 in the morning, but you are suddenly woken up by a cat jumping up and down. Why is the cat owner "crazy" in the middle of the night? How can shoveling officials keep their sleep?
By jsyeem shekels2 years ago in Earth
Why can birds fly so well?
A collection of journals and services under Nature, dedicated to serving the scientific community, we provide a range of high-quality products and services covering life sciences, physics, chemistry and applied sciences. Among them, the journal Nature (Nature), founded in 1869, is a leading international science weekly.
By jsyeem shekels2 years ago in Earth
Tianzhou IV was successfully launched and docked with the space station; Chinese team has developed an aerial robot that can "think independently" | Global science news
? Botany? Motuo, Tibet discovers the tallest tree known to Chinese mainland According to People's Daily, a research team led by Peking University (including Peking University, Xizijiang Ecological Conservation Center, Landscape Conservation Center and Beijing Digital Green soil Science and Technology Co., Ltd.) cooperated with the Forestry and grassland Bureau of Motuo County, Tibet. A 76.8-meter-high Budan pine was recorded in Green Village, back collapse Township, Motuo County, Tibet. It broke the previous record for the 72-meter king of Sequoia flousiana located in Gaoligong Mountain, Yunnan Province, and became the tallest tree found so far in the range of Chinese mainland.
By jsyeem shekels2 years ago in Earth
All the Altman in the world were killed by Newton's scorching laser sword.
The chopping, blocking, deadly and elegant lightsaber is the most handy weapon in the hands of the Jedi. In reality, people have tried all the possibilities of making a lightsaber, laser, flame, plasma, but it is difficult to succeed in the end. Perhaps what we need is a scorching sun lightsaber from Newton, the "grandmaster of physics".
By jsyeem shekels2 years ago in Earth
The mystery of the magnetic field of the moon rock, which has lasted for half a century, is about to be solved.
The rocks brought back to Earth during NASA's Apollo program from 1968 to 1972 provided a great deal of information about the moon's history, but also created an unsolved mystery. The analysis shows that some rocks seem to be formed in the presence of a strong magnetic field, which is as strong as the earth. But it is not clear how the moon-sized object produces such a strong magnetic field.
By jsyeem shekels2 years ago in Earth