Introduction to cell culture, splitting cells using trypsin and counting them using a hemocytometer

2024/05/0305:17:05 science 90764

Introduction to cell culture, splitting cells using trypsin and counting them using a hemocytometer - DayDayNews

Introduction to cell culture, splitting cells using trypsin and counting them using a hemocytometer - DayDayNews

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#Toutiao Creation Challenge# NASA astronomers captured an extremely unusual photo of the sun, our sun looked like a cartoon-like smile, a photo of the sun that had never been seen before. NASA shared this unusual photo on its social media, a photo of the sun taken in UV mode wher - DayDayNews

#Toutiao Creation Challenge# NASA astronomers captured an extremely unusual photo of the sun, our sun looked like a cartoon-like smile, a photo of the sun that had never been seen before. NASA shared this unusual photo on its social media, a photo of the sun taken in UV mode wher

Astronomy enthusiasts, watch it! A photo of the sun with a "smiling" was revealed, both cute and weird

06/28 1406

In nature, there are about 350,000 plants discovered by humans, and only a small part of the plants that can be exposed to in daily life, and the proportion of plant varieties used for ornamental viewing is even smaller. How magical the plants created by nature can be, perhaps hu - DayDayNews

In nature, there are about 350,000 plants discovered by humans, and only a small part of the plants that can be exposed to in daily life, and the proportion of plant varieties used for ornamental viewing is even smaller. How magical the plants created by nature can be, perhaps hu

It turns out that there will be sounds when flowers bloom

06/28 1256

science

Elevation profile data were obtained on June 17, 2021 through the Advanced Terrain Laser Altimeter System on NASA Ice, Cloud and Land Elevation Satellite 2. Instead, it was named in 1841 by Sir James Clarcross after his ship HMS Terror.

"Horror Mountain" is not terrifying. Scientists believe this Antarctic volcano is unlikely to erupt again.

06/29 1902

Hello everyone, next, I will use a series of content to introduce the thoughts of the ancient Greek philosopher Aristotle. I have carefully prepared this series for a while, because it is indeed Aristotle is too important. Aristotle is the most important philosopher in the histor - DayDayNews

Hello everyone, next, I will use a series of content to introduce the thoughts of the ancient Greek philosopher Aristotle. I have carefully prepared this series for a while, because it is indeed Aristotle is too important. Aristotle is the most important philosopher in the histor

Why is Aristotle so important? A scientist called "encyclopedia"?

06/29 1415

A report a few years ago showed that there are about 3 trillion big trees on the earth, and this number seems to be quite large. However, compared with 10,000 years ago, human activities have reduced the number of trees by half. At present, humans have cut down and damaged about - DayDayNews

A report a few years ago showed that there are about 3 trillion big trees on the earth, and this number seems to be quite large. However, compared with 10,000 years ago, human activities have reduced the number of trees by half. At present, humans have cut down and damaged about

It's a big score! The truth is actually very simple

06/28 1082

Without the sun, can humans survive? In human history, there have been two mass extinctions. The first time was around the Age of Discovery, when humans thought that the "earth was extinct". Just when everyone was panicked, the sun finally brought hope to humans. - DayDayNews

Without the sun, can humans survive? In human history, there have been two mass extinctions. The first time was around the Age of Discovery, when humans thought that the "earth was extinct". Just when everyone was panicked, the sun finally brought hope to humans.

Without the sun, can humans survive?

06/29 1613

It has been many years since the development of human civilization. In this overall development process, in fact, there have been different progress in both the overall appearance of a person, in terms of living habits and thoughts. - DayDayNews

It has been many years since the development of human civilization. In this overall development process, in fact, there have been different progress in both the overall appearance of a person, in terms of living habits and thoughts.

Animals have fixed estrus periods, but why don’t humans do? How do humans control desires

06/29 1911

The moon is the Earth's satellite. According to the large collision hypothesis, the moon was formed in a large collision event, and the high-energy substance ejected remained in orbit around the earth, and finally accreted to form the moon. The lunar core mantle quickly separated - DayDayNews

The moon is the Earth's satellite. According to the large collision hypothesis, the moon was formed in a large collision event, and the high-energy substance ejected remained in orbit around the earth, and finally accreted to form the moon. The lunar core mantle quickly separated

How did the moon form, how did it evolve in the later stages, and what impact did it have on us humans?

06/28 1967

An international astrophysics team discovered a puzzling phenomenon when analyzing certain star clusters. The team mainly studied open clusters, which are loose combinations of dozens to hundreds of stars that exist in spiral and irregular galaxies. - DayDayNews

An international astrophysics team discovered a puzzling phenomenon when analyzing certain star clusters. The team mainly studied open clusters, which are loose combinations of dozens to hundreds of stars that exist in spiral and irregular galaxies.

Is Newton's law of universal gravitation wrong? Scientists' new discoveries are challenging this law

06/29 1113

Text | Li Muzi artificial hair follicles produced by hair follicles organoids. Image source: Yokohama National University in Japan, Yokohama National University in Japan, researchers at Yokohama National University in Japan cultivate hair follicles that can grow up to 3 mm in one - DayDayNews

Text | Li Muzi artificial hair follicles produced by hair follicles organoids. Image source: Yokohama National University in Japan, Yokohama National University in Japan, researchers at Yokohama National University in Japan cultivate hair follicles that can grow up to 3 mm in one

With it, treating hair loss is not a dream

06/28 1957

To form a scientific theoretical system, there must be three prerequisites: First, what is the object of this science? The object determines the content, and the principle determines how to arrange the content and make it a system. - DayDayNews

To form a scientific theoretical system, there must be three prerequisites: First, what is the object of this science? The object determines the content, and the principle determines how to arrange the content and make it a system.

What is the content of dialectics

07/01 1742

That's right, among all the creatures on Earth, human butts are unique, and even human close relatives, such as chimpanzees, bonobos and gorillas, do not have human butts. - DayDayNews

That's right, among all the creatures on Earth, human butts are unique, and even human close relatives, such as chimpanzees, bonobos and gorillas, do not have human butts.

Among the creatures on earth, why did humans evolve into a unique butt? By-product of upright walking

07/01 1559

At present, the blood color of most known organisms in the world is basically red or dark red, just like our human blood is red. This is because our blood is rich in hemoglobin, and their biggest function is to transport oxygen, so they are very important to each of us. Because t - DayDayNews

At present, the blood color of most known organisms in the world is basically red or dark red, just like our human blood is red. This is because our blood is rich in hemoglobin, and their biggest function is to transport oxygen, so they are very important to each of us. Because t

1 liter of blue blood 100,000! The horseshoe crab that has reproduced for 400 million years has been "crazy blood drawn". What is the purpose of blue blood?

07/01 1565

I think you shouldn't know you. The 60-year-old man in our village told me that magpies are "naughty eggs" among birds. Why do you say that? But, such a good bird, why do you say that? - DayDayNews

I think you shouldn't know you. The 60-year-old man in our village told me that magpies are "naughty eggs" among birds. Why do you say that? But, such a good bird, why do you say that?

Why do eagles and other beasts do not eat magpies? Isn't it delicious?

07/01 1674

There are countless universes, each slightly different from the previous one. In other cases, the sun is a different color. But in all these universes, there is a constant: you. - DayDayNews

There are countless universes, each slightly different from the previous one. In other cases, the sun is a different color. But in all these universes, there is a constant: you.

You in the multiverse

07/01 1503

Scientists say the collision between the Milky Way and Andromeda has begun, why don’t we feel it? For the past century, astronomers have been plagued by the contradictions of the universe, which, even at the most basic level, are in conflict with the contradiction between general - DayDayNews

Scientists say the collision between the Milky Way and Andromeda has begun, why don’t we feel it? For the past century, astronomers have been plagued by the contradictions of the universe, which, even at the most basic level, are in conflict with the contradiction between general

Scientists say the collision between the Milky Way and Andromeda has begun, why don’t we feel it?

07/01 1200

01 Since you have chosen to break up, you should keep a distance from your ex. If you can, don’t contact me again. Don’t be connected with your ex after starting a new relationship. It is best to wait until you really let go of your ex before choosing to start a new relationship. - DayDayNews

01 Since you have chosen to break up, you should keep a distance from your ex. If you can, don’t contact me again. Don’t be connected with your ex after starting a new relationship. It is best to wait until you really let go of your ex before choosing to start a new relationship.

Regardless of her husband's face, she went abroad in the rain. When she went home, she saw a house full of relatives and friends waiting for her to sign a divorce

07/01 1144

My wife sometimes jokes that I don’t love her because I wrote a lot to my ex-girlfriend, but she doesn’t have a single word. At this moment, I could only smile, thinking that people would always be like the same thing as before? - DayDayNews

My wife sometimes jokes that I don’t love her because I wrote a lot to my ex-girlfriend, but she doesn’t have a single word. At this moment, I could only smile, thinking that people would always be like the same thing as before?

Joy to the wife you married in childhood

07/01 1276

The township office was accidentally lost and the bandit leader escaped. Zhang Hai and Xiao Wudian, with a group of defeated soldiers, retreated back to the yard under the cover of bandits guarding the township office. After less than an hour of fighting, his team lost more than - DayDayNews

The township office was accidentally lost and the bandit leader escaped. Zhang Hai and Xiao Wudian, with a group of defeated soldiers, retreated back to the yard under the cover of bandits guarding the township office. After less than an hour of fighting, his team lost more than

Youyou Luming (Long Series 210) The township office was accidentally lost and the bandit leader escaped

07/01 1263

Note: Over the years of accumulation of domestic workers, we are devoted to telling stories within the industry. A short story every day shows everyone the joys, joys, sorrows and sorrows of family-run sisters and employers. It is purely fiction, and it is a coincidence if there - DayDayNews

Note: Over the years of accumulation of domestic workers, we are devoted to telling stories within the industry. A short story every day shows everyone the joys, joys, sorrows and sorrows of family-run sisters and employers. It is purely fiction, and it is a coincidence if there

She has been a nanny for the years - Thank you for your concern for life in a wealthy family (534)

07/01 1061

When it comes to the flowering season, the white flowers it blooms can smell the whole street; its fragrance is not as strong as the osmanthus, just like its color, but it is a simple fragrance, and you will fall in love with it for the first time you smell it. This is its fruit - DayDayNews

When it comes to the flowering season, the white flowers it blooms can smell the whole street; its fragrance is not as strong as the osmanthus, just like its color, but it is a simple fragrance, and you will fall in love with it for the first time you smell it. This is its fruit

Listen to my nagging little thorn flower

07/01 1005

There are a lot of small animals around me in recent days. I went back to the countryside to live for a few days. There was a crab on the table for several consecutive days. There was a saying in the countryside that "one crab has half a liang of meat." I feel that I haven't eate - DayDayNews

There are a lot of small animals around me in recent days. I went back to the countryside to live for a few days. There was a crab on the table for several consecutive days. There was a saying in the countryside that "one crab has half a liang of meat." I feel that I haven't eate

Do you like to eat crabs?

07/01 1504