Introduction to the Lorentz transformation | Special relativity | Physics | Khan Academy

2024/05/2001:03:04 science 300016

Introduction to the Lorentz transformation | Special relativity | Physics | Khan Academy - DayDayNews

Introduction to the Lorentz transformation | Special relativity | Physics | Khan Academy - DayDayNews

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[Source: Shunyi Ecological Environment] Ubiquitous plastic products have facilitated people's lives, but the resulting plastic waste has caused a lot of pollution to the ecological environment... - DayDayNews

[Source: Shunyi Ecological Environment] Ubiquitous plastic products have facilitated people's lives, but the resulting plastic waste has caused a lot of pollution to the ecological environment...

"Popular Science" "Degradable Plastics" Revealed

06/10 1983

In Thailand, because most vaccinated people have no symptoms or very mild symptoms when infected with the new coronavirus Omicron variant, many people have the option of quarantining at home. - DayDayNews

In Thailand, because most vaccinated people have no symptoms or very mild symptoms when infected with the new coronavirus Omicron variant, many people have the option of quarantining at home.

Thai experts explain: How long is enough for COVID-19 patients to be quarantined?

06/09 1186

Recently, researchers such as Broad Institute of MIT and Harvard David Liu published a review in Cell to introduce the research progress in this field. - DayDayNews

Recently, researchers such as Broad Institute of MIT and Harvard David Liu published a review in Cell to introduce the research progress in this field.

Cell | David Liu and others review the research progress of gene editing vectors

06/09 1876

The metallurgical industry in the Qing Dynasty exceeded the level of the mid-Ming Dynasty. According to statistics from the Geological Survey, the national output of iron smelting by the old method was more than 170,000 tons in 1919, and the output of iron in the late Qing Dynast - DayDayNews

The metallurgical industry in the Qing Dynasty exceeded the level of the mid-Ming Dynasty. According to statistics from the Geological Survey, the national output of iron smelting by the old method was more than 170,000 tons in 1919, and the output of iron in the late Qing Dynast

Cold Knowledge of the Qing Dynasty - Metallurgical and Machinery Manufacturing Achievements of the Qing Dynasty

06/10 1613

Chinese people have a special emotion for the moon. Chang'e flies to the moon, the Moon Rabbit makes medicine, we are strangers in a foreign land, but we still share the beauty of the moon. The moon represents my heart. Throughout the ages, many thoughts and emotions have been pl - DayDayNews

Chinese people have a special emotion for the moon. Chang'e flies to the moon, the Moon Rabbit makes medicine, we are strangers in a foreign land, but we still share the beauty of the moon. The moon represents my heart. Throughout the ages, many thoughts and emotions have been pl

Why do American experts want to blow up the moon and leave the earth without seasons? What is their purpose?

06/10 1691

This article is original to the Translational Medicine Network. Please indicate the source when reprinting. Author: Lily Introduction: Fat cells can be divided into "white" and "brown" - white fat cells are responsible for storing fat, and their weight accounts for about 15%-20% - DayDayNews

This article is original to the Translational Medicine Network. Please indicate the source when reprinting. Author: Lily Introduction: Fat cells can be divided into "white" and "brown" - white fat cells are responsible for storing fat, and their weight accounts for about 15%-20%

"Nature" rekindles brown fat cells and eliminates excess fat

06/09 1715

my country's first artificially bred rabbit cat turns one year old. On July 7, the Internet celebrity "Elder Snake" in Xining Wildlife Park is one year and two months old. "She" is my country's first artificially bred rabbit cat. "She" "It not only fills the gap in the successful - DayDayNews

my country's first artificially bred rabbit cat turns one year old. On July 7, the Internet celebrity "Elder Snake" in Xining Wildlife Park is one year and two months old. "She" is my country's first artificially bred rabbit cat. "She" "It not only fills the gap in the successful

Xining is awesome! For the first time, China achieved

06/09 1073

Researchers including Daohua Jiang from the Institute of Physics, Chinese Academy of Sciences, and William Catterall and Ning Zheng from the University of Washington analyzed the structure of the open-state cardiac sodium channel (NaV1.5) and analyzed its working principle (1). - DayDayNews

Researchers including Daohua Jiang from the Institute of Physics, Chinese Academy of Sciences, and William Catterall and Ning Zheng from the University of Washington analyzed the structure of the open-state cardiac sodium channel (NaV1.5) and analyzed its working principle (1).

Cell | Open state myocardial sodium channel structure

06/09 1285

Recently, a scientific research team from Tokyo Metropolitan University in Japan discovered a new type of compound that can capture carbon dioxide directly from the environment and achieve the highest carbon capture efficiency so far of 99%, which is twice the efficiency of other - DayDayNews

Recently, a scientific research team from Tokyo Metropolitan University in Japan discovered a new type of compound that can capture carbon dioxide directly from the environment and achieve the highest carbon capture efficiency so far of 99%, which is twice the efficiency of other

Japanese scientists develop new carbon capture system that can quickly and directly capture low-concentration carbon dioxide

06/09 1986

One laboratory announced its new establishment. From a common sense point of view, since it has been released to the public, it must not be a small laboratory or it must be responsible for some insignificant fringe projects; since a laboratory has been established and publicly an - DayDayNews

One laboratory announced its new establishment. From a common sense point of view, since it has been released to the public, it must not be a small laboratory or it must be responsible for some insignificant fringe projects; since a laboratory has been established and publicly an

What big project is this new laboratory doing?

06/10 1994

Pictured above is Physarum polycephalum, a protist, specifically a slime mold. The term "slime mold" does not refer to a specific single group, but is a broad term referring to several types of eukaryotes that behave similarly. Regardless, they possess intelligence, although it l - DayDayNews

Pictured above is Physarum polycephalum, a protist, specifically a slime mold. The term "slime mold" does not refer to a specific single group, but is a broad term referring to several types of eukaryotes that behave similarly. Regardless, they possess intelligence, although it l

Intelligent slime mold

06/11 1668

01. Nostalgia is a spaceship heading to Mars. ——Douyou 02. Since childhood, I have been taking care of the stars of all generations alone. ——Bai Helin's "Loneliness" 03. The stars should laugh, the universe is a remote place anyway. ——Pasternak 04. All my desires and contemplatio - DayDayNews

01. Nostalgia is a spaceship heading to Mars. ——Douyou 02. Since childhood, I have been taking care of the stars of all generations alone. ——Bai Helin's "Loneliness" 03. The stars should laugh, the universe is a remote place anyway. ——Pasternak 04. All my desires and contemplatio

Golden sentence#星星——All my desires and contemplations are the slowly exhaled air currents of this universe.

06/11 1169

Today, an insight into the vision of a once young cosmic artist shows the dust continuum and molecular lines of carbon monoxide and water seen in the pair of SPT0311-58 galaxies. (Image source: ALMA (ESO/NAOJ/NRAO)/S. - DayDayNews

Today, an insight into the vision of a once young cosmic artist shows the dust continuum and molecular lines of carbon monoxide and water seen in the pair of SPT0311-58 galaxies. (Image source: ALMA (ESO/NAOJ/NRAO)/S.

Water was discovered in ancient galaxies, which surprised astronomers. What happened?

06/11 1154

Text/Picture Yangcheng Evening News all-media reporter Wen Cong has completed about 700 experimental projects, filling many gaps in my country's scientific research field... Next month, the China Spallation Neutron Source (CSNS) will have been in operation for four years. With th - DayDayNews

Text/Picture Yangcheng Evening News all-media reporter Wen Cong has completed about 700 experimental projects, filling many gaps in my country's scientific research field... Next month, the China Spallation Neutron Source (CSNS) will have been in operation for four years. With th

Filling in many scientific research gaps! The China Spallation Neutron Source will be in operation for four years丨The party flag is flying high at the grassroots level

06/11 1511

In fact, we are not unfamiliar with the term mycotoxins. They generally exist in grains. The detection of mycotoxins can be carried out on-site. When choosing instruments for testing, we must choose brands with good quality. - DayDayNews

In fact, we are not unfamiliar with the term mycotoxins. They generally exist in grains. The detection of mycotoxins can be carried out on-site. When choosing instruments for testing, we must choose brands with good quality.

Introduction to applicable industries of mycotoxin detectors

06/11 1040

How should we choose testing instruments? When choosing together, we should focus on the quality of the product. Speaking of instruments, online residual chlorine analyzers have a wide range of uses. They are not only very accurate in detecting residual chlorine content, but can - DayDayNews

How should we choose testing instruments? When choosing together, we should focus on the quality of the product. Speaking of instruments, online residual chlorine analyzers have a wide range of uses. They are not only very accurate in detecting residual chlorine content, but can

Instructions for using online residual chlorine analyzer

06/11 1125

Suddenly I felt that my IQ was not enough: I knew every word in it. But even together, I can't understand anything. If your child has a cold or fever, take him to the hospital. Most doctors will ask him to do a routine blood test. - DayDayNews

Suddenly I felt that my IQ was not enough: I knew every word in it. But even together, I can't understand anything. If your child has a cold or fever, take him to the hospital. Most doctors will ask him to do a routine blood test.

Be careful! The blood routine report has these three arrows, it may be... leukemia!

06/11 1314

Author: Xiaoshou Jingmen Traditional Chinese Medicine Hospital. Some scholars once proposed that there is a positive correlation between white blood cells (WBC) and C-reactive protein (CRP). The content of CRP increases rapidly a few hours after the onset of the disease, and the - DayDayNews

Author: Xiaoshou Jingmen Traditional Chinese Medicine Hospital. Some scholars once proposed that there is a positive correlation between white blood cells (WBC) and C-reactive protein (CRP). The content of CRP increases rapidly a few hours after the onset of the disease, and the

Summary | Why don’t WBC and CRP increase at the same time?

06/11 1939

As we all know, blood routine is the most basic and common clinical examination. Many patients are confused by the densely packed various indicators on the checklist. Some patients even start to fear that they are abnormal when they see that many indicators on the checklist are a - DayDayNews

As we all know, blood routine is the most basic and common clinical examination. Many patients are confused by the densely packed various indicators on the checklist. Some patients even start to fear that they are abnormal when they see that many indicators on the checklist are a

If these blood routine indicators are abnormal, you should be alert to blood diseases

06/11 1917

Bone marrow problems. The spongy center of your bones, your bone marrow, makes blood cells. Low white blood cell counts are often associated with bone marrow problems. Being around certain chemicals, such as benzene and pesticides, as well as certain types of cancer and cancer tr - DayDayNews

Bone marrow problems. The spongy center of your bones, your bone marrow, makes blood cells. Low white blood cell counts are often associated with bone marrow problems. Being around certain chemicals, such as benzene and pesticides, as well as certain types of cancer and cancer tr

Why is your white blood cell count lower than normal?

06/11 1709

Hemoglobin is like a delivery boy, responsible for delivering oxygen to various organs. Under normal circumstances, the hemoglobin concentration of an adult male is 120 to 160g/L; - DayDayNews

Hemoglobin is like a delivery boy, responsible for delivering oxygen to various organs. Under normal circumstances, the hemoglobin concentration of an adult male is 120 to 160g/L;

Don’t worry about the physical examination form. Learn these three tricks to let you know how to read the blood routine test form.

06/11 1668

Labor ability assessment, employee work-related injuries and occupational disease disability grades and appendices. Released by China National Standardization Administration Committee. A.1 Department of Neurology, Neurosurgery, and Psychiatry. - DayDayNews

Labor ability assessment, employee work-related injuries and occupational disease disability grades and appendices. Released by China National Standardization Administration Committee. A.1 Department of Neurology, Neurosurgery, and Psychiatry.

Work-related injury level 1-10 disability level and labor ability appraisal and grading standards

06/11 1488