28:08
Recommended
-196°C, which is a temperature that makes people feel very strange, and this number is the liquid nitrogen temperature at which umbilical cord blood hematopoietic stem cells are safely stored. So, why should umbilical cord blood be stored at this temperature? Can the quality and
Can the quality and quantity of umbilical cord blood stored in liquid nitrogen at -196°C be maintained?
05/31
1696
You would never imagine that plants have made so many efforts to prevent them from being eaten by other animals. Do you know what they are? I believe many friends are curious about a question, that is, plants are also living things. Since they are living things, they must They wi
If the theory of evolution is correct, why did plants evolve to be sweet and delicious? Intentionally inviting animals to eat?
05/31
1106
Probably because it is backed by stars and sea, astronomy can always stir up the mysterious romance of the universe. In the summer of 2021, a video on CCTV received 280,000 likes and became a hot search. The protagonists of the "cosmic romance" in the video are two college studen
In the solar system 200 million kilometers away from the earth, there is an asteroid named after this young man from Suzhou!
05/30
1098
Manufacturing simulation of an unconventionally reinforced aircraft fuselage during automated fiber placement (Source: IFW) The results of biomimetic observations, topology optimization or feasibility in manufacturing do not always end up with the same geometry - in fact, Very fe
OptiFee-Optimization of aircraft fuselage enhancement layout
05/30
1509
On a clear night, when we look up at the stars, we find that the night is inlaid with countless stars. We can't help but be attracted by the twinkling stars in the sky. The dense starlight is so beautiful. Most of the shining stars we see are stars in the Milky Way, as well as so
In 1994, a comet collided violently with Jupiter, with a force equivalent to the simultaneous explosion of 2 billion atomic bombs.
05/30
1997
In the above-mentioned vision of high-tech warfare, lasers are mentioned many times. This is definitely not a bizarre myth. It not only plays a huge role in production, medicine, scientific experiments and other fields, but also greatly promotes the development of military techno
Which country has military control over space that actually controls the world?
05/31
1228
As we grow older, we always seem to lose something. Many people who move from remote villages to metropolitan areas always lament that since arriving in the city, they can rarely see the bright Milky Way. Due to various reasons, we all seem to have lost the opportunity to "apprec
Why is it so hard for us to see the Milky Way now? In a hundred years, humans may not be able to see a single star
05/30
1754
For our country’s scientific and technological innovation in the past seventy years, we should be most grateful to the United States. Although “crossing the river by touching the American emperor” is a joke, it also summarizes the general idea of our scientific and technologi
When will there be another breakthrough in basic science? Where is our technological innovation going?
05/30
1506
Walls can be seen everywhere in our human society. They are not only barriers to protect us, but they can also be seen as cages to imprison us. In addition to these walls that we can see in life, astronomers have also discovered "walls" in the universe, as if someone deliberately
The "cosmic wall" was discovered, and researchers were panicked: Are we really the experimental subjects?
05/30
1082
The German Federal Ministry of Science and Technology wants to accelerate materials research and make it sustainable and relevant to industry. However, the success of technology leaps or market launches in government-funded projects depends largely on the choice of partners. A ne
Germany's Federal Ministry of Science and Technology promotes materials development
05/30
1237
Relation Video
science Relation Video
Site video recommendation
science Latest News
The oxygen content of the air is only about 40% of that in the plains, and the annual average temperature is below 0 degrees Celsius. Looking around, you can see the boundless plateau alpine desert grassland. This is the Qiangtang National Nature Reserve, known as the "forbidden
Meteorological service records of "life forbidden zone"
06/01
1299
A new Tel Aviv University study proposes a new AIDS treatment that could be turned into a vaccine or a one-time treatment for HIV patients. The study looked at modifying type B white blood cells in patients so that they release anti-HIV antibodies in response to the virus.
Scientists propose potential AIDS treatment: HIV may be defeated with a single injection
06/01
1843
Shape memory polymers have broad application prospects in biomedical and mechanical engineering. However, most shape memory polymer programming processes require heating, such as water baths and oil baths. However, this environmental indirect heating method has limited heating ra
Jilin University and Huazhong University of Science and Technology joint research-shape memory polymer co-extrusion 4D printing strategy
06/01
1109
Amorphous calcium carbonate (ACC) calcium supplement developed by Israeli biotech company Amorphical was tested in space and results show that it can improve muscle performance in zero gravity. , strengthen and build bones, provide body functions, and enhance immunity.
Technology Frontier | Israel’s innovative ACC technology opens a new era of “space settlement”
06/01
1646
In mid-to-late June, a professional monitoring found that Chinese horseshoe crabs were found all over the coastal tidal flats of the Hepu Dugong National Nature Reserve in Guangxi. The maximum density per unit quadrat was as high as 53.1 birds/100 square meters, ranking first in
With a density of 53.1 horseshoe crabs per 100 square meters, the density of horseshoe crabs in Guangxi ranks first in the country.
06/01
1214
There are no identical creatures on the earth, and there are no identical individuals. Even identical twins will have such differences. However, scientists have concluded that there is only one ancestor of these various creatures living on the earth. Then the creatures on the ear
How is the direction of biological evolution determined?
06/01
1334
Site Latest News
At 6:30 in the evening of Chinese Valentine's Day, the most eye-catching spot in the atrium on the first floor of Tahoe Plaza in the East Second Ring Road of Fuzhou was blocked off. However, when the live accompaniment sounded and she opened her mouth, her voice seemed to set up
Surprised to see such a niche Shankou at a domestic brand event
06/01
1305
But in Little K’s eyes, it’s also a time to share stories at home with friends who like 2D, so as a senior otaku, of course I don’t want to travel far away.
When you’re on your way to Comic-Con and the crowds fill you up, do you choose to shrink back? For the second dimension!
06/01
1780
How do we use our five senses to cultivate morality? When a baby falls to the ground and is born from the mother's womb, the first time it sounds is it cries! When you open your mouth, you will scream "wow". Then I know I'm hungry and I have to open my mouth to feed! From the mom
How do we use our five senses to cultivate morality?
06/01
1944
Ke Jiayan, a Taiwanese actress born in 1985, was dubbed "Xiao Gui Lunmei" when she debuted. She was the heroine of the TV series "Want to See You" that concluded last week. She played two roles, and her superb acting skills made the audience applaud. Applauded, after all, he can
She has attracted much attention for "Want to Meet You", but she is very different in private than in the drama. She got married for the first time when she was 18 years old.
06/01
1753
The Taiwan Golden Bell Awards have come to an end. This time, the Actress Award for Drama Program was won by Taiwanese female artist Ao Chia-yan. In the Taiwanese drama "Want to See You", she not only played Chen Yunru, a 17-year-old high school student, but also played two roles
Ke Jiayan: Only when you accept everything about yourself, including shortcomings and dark sides, will you be happy
06/01
1289
In daily care, novice parents should pay more attention to their babies. Specifically, they must do the following: ● Babies in infancy have the ability to distinguish relatives from strangers, so it is best for novice parents to always be around their babies to provide them with
This is what you need to do to care for your baby
06/01
1925