Doppler Effect grade 12: Red and Blue Shift

2024/05/0121:16:04 science 121794

Doppler Effect grade 12: Red and Blue Shift - DayDayNews

Doppler Effect grade 12: Red and Blue Shift - DayDayNews

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According to reports, China's import dependence on high-end scientific instruments ranks in the top three along with chips and oil, with the import dependence reaching 90%, which is higher than chips and oil. At a time when China's scientific research is advancing to the high end - DayDayNews

According to reports, China's import dependence on high-end scientific instruments ranks in the top three along with chips and oil, with the import dependence reaching 90%, which is higher than chips and oil. At a time when China's scientific research is advancing to the high end

The road to breakthrough for China’s high-end scientific instruments

05/31 1696

Did you know that the human brain is the most sophisticated and important organ in the world. It is composed of 200 billion brain cells, can store 100 billion pieces of information, generates thoughts that travel more than 300 miles per hour, has more than 100 megabytes of interl - DayDayNews

Did you know that the human brain is the most sophisticated and important organ in the world. It is composed of 200 billion brain cells, can store 100 billion pieces of information, generates thoughts that travel more than 300 miles per hour, has more than 100 megabytes of interl

Intellectual training 365 questions

05/30 1107

The Fields Medal is an international mathematics award proposed by Canadian mathematician Fields. It is one of the highest international awards in the field of mathematics. Because the Nobel Prize does not include a mathematics prize, the Fields Medal is also known as the "Nobel - DayDayNews

The Fields Medal is an international mathematics award proposed by Canadian mathematician Fields. It is one of the highest international awards in the field of mathematics. Because the Nobel Prize does not include a mathematics prize, the Fields Medal is also known as the "Nobel

A woman in war-torn Ukraine won the Nobel Prize in mathematics, the second female winner in history

05/30 1904

Before this, we all know that our country has the largest rare earth reserves in the world, about 44 million tons, followed by Mongolia with about 31 million tons, and Brazil with 2,200 tons. Thousands of tons of rare earths are called industrial gold. - DayDayNews

Before this, we all know that our country has the largest rare earth reserves in the world, about 44 million tons, followed by Mongolia with about 31 million tons, and Brazil with 2,200 tons. Thousands of tons of rare earths are called industrial gold.

Türkiye claims that it has discovered the world's largest rare earth resources, which can be used for thousands of years. What impact will it have on China?

05/30 1634

Text | Science Wormhole Winter in the Arctic is very cold. The average temperature in January is between minus 40°C and 0°C, and some areas can reach minus 50°C in winter. In such a cold Arctic Circle, there are some people who have settled for generations. They are the Inuit. - DayDayNews

Text | Science Wormhole Winter in the Arctic is very cold. The average temperature in January is between minus 40°C and 0°C, and some areas can reach minus 50°C in winter. In such a cold Arctic Circle, there are some people who have settled for generations. They are the Inuit.

Minus 50℃! Is it really not cold when Inuit people live in igloos? If you light a fire in the house, will the snow melt?

05/30 1492

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 - DayDayNews

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

Researchers such as Jiang Hao from the University of Virginia School of Medicine discovered that a tumor suppressor gene that is frequently mutated in a variety of tumors can function through liquid-liquid phase separation (1). The protein encoded by this gene is UTX. - DayDayNews

Researchers such as Jiang Hao from the University of Virginia School of Medicine discovered that a tumor suppressor gene that is frequently mutated in a variety of tumors can function through liquid-liquid phase separation (1). The protein encoded by this gene is UTX.

Nature | Tumor suppressor genes can function through liquid-liquid phase separation

05/30 1628

-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 - DayDayNews

-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

Researchers such as Stefano Piccolo from the University of Padua in Italy discovered that YAP/TAZ, a key factor in mechanical force signaling, plays a key role in cellular aging. - DayDayNews

Researchers such as Stefano Piccolo from the University of Padua in Italy discovered that YAP/TAZ, a key factor in mechanical force signaling, plays a key role in cellular aging.

Nature | Mechanical force signaling cascades to immune regulation of cellular senescence

05/30 1950

The droplets or deposits formed by liquid-liquid phase separation can help cells assemble functional structures to help them perform normal functions. However, currently little is known about the localization rules of its formation rate and the causes of its specificity (1). - DayDayNews

The droplets or deposits formed by liquid-liquid phase separation can help cells assemble functional structures to help them perform normal functions. However, currently little is known about the localization rules of its formation rate and the causes of its specificity (1).

Nature | How to produce liquid-liquid phase separation droplets at regular intervals?

05/30 1054

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 - DayDayNews

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. - DayDayNews

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 - DayDayNews

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. - DayDayNews

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 - DayDayNews

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 - DayDayNews

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

The dust about Luo Zhixiang's cheating incident has not yet settled. Just when handsome men and beautiful women are rushing to express their "520" confessions, Luo Zhixiang, who is unwilling to be lonely, sized up the situation and set off the entertainment industry with a "520" - DayDayNews

The dust about Luo Zhixiang's cheating incident has not yet settled. Just when handsome men and beautiful women are rushing to express their "520" confessions, Luo Zhixiang, who is unwilling to be lonely, sized up the situation and set off the entertainment industry with a "520"

Luo Zhixiang's Weibo exposure, "520" true confession, is this about rebirth?

06/01 1981

That night, he posted his first Weibo post, which was a short video. He greeted Chinese fans in Chinese: "Good evening everyone, I am Kimura Takuya. I" It seems that he just returned to Japan after attending an event, and 12 On March 24, he also sent a Christmas greeting: "wishyo - DayDayNews

That night, he posted his first Weibo post, which was a short video. He greeted Chinese fans in Chinese: "Good evening everyone, I am Kimura Takuya. I" It seems that he just returned to Japan after attending an event, and 12 On March 24, he also sent a Christmas greeting: "wishyo

Kimura Takuya posted his first Weibo post, and his fan brother Luo Zhixiang immediately said hello

06/01 1464

In the past two days, Nanning has been on the hot search again. This time it was actually because "Luo Zhixiang was hit in the face." It turned out to be because netizens discovered that a stall boy in Nanning and Luo Zhixiang bumped into each other and posted a video online. Sin - DayDayNews

In the past two days, Nanning has been on the hot search again. This time it was actually because "Luo Zhixiang was hit in the face." It turned out to be because netizens discovered that a stall boy in Nanning and Luo Zhixiang bumped into each other and posted a video online. Sin

"Nanning Luo Zhixiang" became popular all over the Internet! On the hot search on Weibo, even Luo Zhixiang himself responded...

06/01 1481

On the QQ Music platform, nearly 7.76 million people have made reservations to watch the replay of Jay Chou's concert. Together with the replay of Jay Chou's Strongest on Earth 2019 concert tomorrow night, the number of reservations for the two concerts has exceeded 15.45 million - DayDayNews

On the QQ Music platform, nearly 7.76 million people have made reservations to watch the replay of Jay Chou's concert. Together with the replay of Jay Chou's Strongest on Earth 2019 concert tomorrow night, the number of reservations for the two concerts has exceeded 15.45 million

"Young man is back", Jay Chou is all over the internet! A re-screening of a concert from 9 years ago attracted 50 million people

06/01 1025

Jay Chou's "Carnival" world tour to celebrate the 20th anniversary is about to debut! In order to celebrate the 20th anniversary, the concert will focus on joyful elements. - DayDayNews

Jay Chou's "Carnival" world tour to celebrate the 20th anniversary is about to debut! In order to celebrate the 20th anniversary, the concert will focus on joyful elements.

Collection of the most complete tour route of Jay Chou's 2019 "Carnival" concert on the Internet! (time and location

06/01 1587

Libra Libra people are strict with themselves, lenient to others, able to withstand the test of reality, insist on improving themselves, full of gratitude, generous to others, like to consider others, and will not put themselves first. - DayDayNews

Libra Libra people are strict with themselves, lenient to others, able to withstand the test of reality, insist on improving themselves, full of gratitude, generous to others, like to consider others, and will not put themselves first.

In another 7 days, people of these zodiac signs will improve themselves and not be afraid of any difficulties.

06/01 1383