History of Astronomy Part 1: The Celestial Sphere and Early Observations

2024/05/1313:10:09 science 205879

History of Astronomy Part 1: The Celestial Sphere and Early Observations - DayDayNews

History of Astronomy Part 1: The Celestial Sphere and Early Observations - DayDayNews

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In a new study published on November 4, 2021, a new computer model of the black hole in the M87 galaxy was created. New computer models show that the first (and only) black hole to be photographed by humans is ejecting huge streams of plasma at nearly the speed of light. - DayDayNews

In a new study published on November 4, 2021, a new computer model of the black hole in the M87 galaxy was created. New computer models show that the first (and only) black hole to be photographed by humans is ejecting huge streams of plasma at nearly the speed of light.

Black holes swallow objects, but part of the matter is spit out by the black hole. What is the principle?

05/21 1442

The study, published in Science on June 30, reports that the implant is made of biodegradable materials and is designed to reduce postoperative pain. There is an urgent need for better ways to relieve pain because currently available opioids can be addictive, and ice packs or coo - DayDayNews

The study, published in Science on June 30, reports that the implant is made of biodegradable materials and is designed to reduce postoperative pain. There is an urgent need for better ways to relieve pain because currently available opioids can be addictive, and ice packs or coo

Still using ice cubes to relieve pain? Science: Try this method

05/21 1571

The 6,000-meter deep sea is a world that is difficult for humans to reach. Some scientists once said that compared with the detection of the deep sea world, space exploration may be simpler. The deep sea is always deep and mysterious. During the Cold War between the United States - DayDayNews

The 6,000-meter deep sea is a world that is difficult for humans to reach. Some scientists once said that compared with the detection of the deep sea world, space exploration may be simpler. The deep sea is always deep and mysterious. During the Cold War between the United States

2.53 meters long! Strange fish found 2,000 meters deep in Japan, looks fierce: Experts think it is unusual

05/22 1525

Not long ago, a lion with full bangs became a hot search topic. Do keepers give animals haircuts? What is the daily work of a breeder looking after ligers and other beasts, as well as animal cubs? Writer/Reporter Lu Bingxin Graphic Editor/Chen Yongjie New Media Editor/Lv Bingxin - DayDayNews

Not long ago, a lion with full bangs became a hot search topic. Do keepers give animals haircuts? What is the daily work of a breeder looking after ligers and other beasts, as well as animal cubs? Writer/Reporter Lu Bingxin Graphic Editor/Chen Yongjie New Media Editor/Lv Bingxin

Not a hairdresser but a "nanny", revealing the "magic job" of zoo keepers

05/21 1008

The full text has a total of 569 words | It will take about 2.5 minutes to read. Is the ecology good? Watch where the birds fly and where the fish swim. Wild animals are the vane of ecological improvement. Recently, some people discovered a breeding colony of Sand Swallows along - DayDayNews

The full text has a total of 569 words | It will take about 2.5 minutes to read. Is the ecology good? Watch where the birds fly and where the fish swim. Wild animals are the vane of ecological improvement. Recently, some people discovered a breeding colony of Sand Swallows along

Why are more and more rare birds settling in Daxing? turn out to be……

05/22 1008

To put it simply: the speed of light is 300,000 kilometers per second, which is indeed very fast, but light does not require any power to reach the speed of light, and there is no acceleration process. To put it bluntly, light is "born" at the speed of light, and it must be the s - DayDayNews

To put it simply: the speed of light is 300,000 kilometers per second, which is indeed very fast, but light does not require any power to reach the speed of light, and there is no acceleration process. To put it bluntly, light is "born" at the speed of light, and it must be the s

The speed of light reaches 300,000 kilometers per second. It is so fast, what is the power?

05/21 1927

Only three scientists worldwide have received this honor. Yuan Daoxian, a professor at the School of Geographical Sciences of Southwest University, is among them. He is a famous geologist, hydrogeologist and karstologist. - DayDayNews

Only three scientists worldwide have received this honor. Yuan Daoxian, a professor at the School of Geographical Sciences of Southwest University, is among them. He is a famous geologist, hydrogeologist and karstologist.

There are only three in the world, and the Chinese are among them

05/21 1484

As a field closely related to people, water environment has always been the focus of great attention. Water quality monitoring instruments serve as a "pioneer" in water environment management. With the rapid development of advanced technologies such as the Internet of Things, COD - DayDayNews

As a field closely related to people, water environment has always been the focus of great attention. Water quality monitoring instruments serve as a "pioneer" in water environment management. With the rapid development of advanced technologies such as the Internet of Things, COD

Manganese method COD meter - ensuring the safety of water environment

05/22 1176

@True Knowledge New Coordinates Regarding time, it has always been a major issue discussed by many philosophers. Einstein once said: "Time is a cognitive illusion of people, which seems to imply that time only exists on clocks and calendars." So, does time really exist or is it o - DayDayNews

@True Knowledge New Coordinates Regarding time, it has always been a major issue discussed by many philosophers. Einstein once said: "Time is a cognitive illusion of people, which seems to imply that time only exists on clocks and calendars." So, does time really exist or is it o

Time doesn't exist? What would you do if time stood still?

05/22 1059

An astronaut aboard the International Space Station (ISS) captured this image of Tunupa Volcano on February 5, 2022. It is located on a peninsula between Bolivia's two largest salt flats (Salar de Uyuni and Salar de Coipsa). These saline marshes vary in sediment coverage and micr - DayDayNews

An astronaut aboard the International Space Station (ISS) captured this image of Tunupa Volcano on February 5, 2022. It is located on a peninsula between Bolivia's two largest salt flats (Salar de Uyuni and Salar de Coipsa). These saline marshes vary in sediment coverage and micr

"Space Observation" Bolivia's Tunupa volcano photographed by the International Space Station

05/21 1264

"China wants to occupy the moon" - NASA Administrator Nelson's accusation against China in an exclusive interview with Germany's Bild newspaper became an international joke this weekend. Some foreign media also quoted his words with a strong sense of irony: For example, an articl - DayDayNews

"China wants to occupy the moon" - NASA Administrator Nelson's accusation against China in an exclusive interview with Germany's Bild newspaper became an international joke this weekend. Some foreign media also quoted his words with a strong sense of irony: For example, an articl

It became an international joke! What is the origin of the man who said "China wants to occupy the moon"?

05/23 1368

1. In 2021, a piece of news officially announced by Canada caused quite a stir in the entire scientific community. According to relevant news, Canadian officials discovered a female sub-adult wolf cub in the permafrost area. Interestingly, this little wolf died about 57,000 years - DayDayNews

1. In 2021, a piece of news officially announced by Canada caused quite a stir in the entire scientific community. According to relevant news, Canadian officials discovered a female sub-adult wolf cub in the permafrost area. Interestingly, this little wolf died about 57,000 years

The permafrost is melting massively, and the remains of prehistoric creatures have appeared. Is this a new crisis for mankind?

05/23 1663

Especially in the aerospace field, everyone is scrambling to be the first. Since ancient times, the weak will choose to emulate the strong, so many countries regard the United States as an example for them to learn from and as a goal to pursue. - DayDayNews

Especially in the aerospace field, everyone is scrambling to be the first. Since ancient times, the weak will choose to emulate the strong, so many countries regard the United States as an example for them to learn from and as a goal to pursue.

Is there only a 15-year gap between the aerospace capabilities of China and the United States? Aerospace academician: The real gap may be far more than that

05/23 1414

Text | "China Science News" reporter Zhang Shuanghu 35 years ago, when the National Natural Science Foundation of China Youth Science Fund (hereinafter referred to as the Youth Fund) project was established, it was "reserved" for a young person for one year. Immediately afterward - DayDayNews

Text | "China Science News" reporter Zhang Shuanghu 35 years ago, when the National Natural Science Foundation of China Youth Science Fund (hereinafter referred to as the Youth Fund) project was established, it was "reserved" for a young person for one year. Immediately afterward

Academician Deng Zixin: After receiving 50,000 yuan from the Youth Fund, my mood is no less than the millions today

05/23 1749

On June 23, the Changer Dingyao 64 rocket lifted off from the Xichang Satellite Launch Center, sending three remote sensing satellites of the Ministry of Agriculture and Rural Affairs 3502 Group A, B, and C into low Earth orbit. However, this is not all of its mission. According - DayDayNews

On June 23, the Changer Dingyao 64 rocket lifted off from the Xichang Satellite Launch Center, sending three remote sensing satellites of the Ministry of Agriculture and Rural Affairs 3502 Group A, B, and C into low Earth orbit. However, this is not all of its mission. According

The arrival of China’s solar sail is not the first time it has entered space. We cannot miss it anymore in the new era of navigation.

05/23 1795

I wonder if you have noticed a special-looking plant when you often go to the river in summer. There is a wetland park near my home. In the summer, I will go to the wetland park with my family. When passing by a place with water, I can see a plant that looks like a sausage, becau - DayDayNews

I wonder if you have noticed a special-looking plant when you often go to the river in summer. There is a wetland park near my home. In the summer, I will go to the wetland park with my family. When passing by a place with water, I can see a plant that looks like a sausage, becau

Cattail: looks like a "sausage" and is common near water. It has many values and is full of treasures.

05/23 1252

A few days ago, a piece of information about the mid-term facelift of the domestically produced BMW 3 Series was exposed online. The new car is expected to be put into production in September this year, so the official launch should also be around September. As early as mid-May, - DayDayNews

A few days ago, a piece of information about the mid-term facelift of the domestically produced BMW 3 Series was exposed online. The new car is expected to be put into production in September this year, so the official launch should also be around September. As early as mid-May,

It is expected to go into production in September. Information about the mid-term facelift of the domestically produced BMW 3 Series has been exposed. It comes standard with M sports package.

05/24 1100

Shi Liqian, member of the Standing Committee of the Municipal Party Committee and Minister of the Propaganda Department, relevant leaders of the Organization Department of the Municipal Party Committee, the Municipal Sixth Discipline Inspection Team, and members of the Fourth Cul - DayDayNews

Shi Liqian, member of the Standing Committee of the Municipal Party Committee and Minister of the Propaganda Department, relevant leaders of the Organization Department of the Municipal Party Committee, the Municipal Sixth Discipline Inspection Team, and members of the Fourth Cul

Literary and artistic trends｜Work together, forge ahead, and strive to create a new situation in Yongkang’s literary and artistic undertakings

05/24 1775

A member of the Standing Committee of the Lianshui County Party Committee investigated the fate of this world and said "three tens of billions" in one breath! Text | Editor by Liquor Wolf Team | Yu Xiaomei On the morning of July 2, the Lianshui County Standing Committee collectiv - DayDayNews

A member of the Standing Committee of the Lianshui County Party Committee investigated the fate of this world and said "three tens of billions" in one breath! Text | Editor by Liquor Wolf Team | Yu Xiaomei On the morning of July 2, the Lianshui County Standing Committee collectiv

A survey of "three tens of billions", can this life's fate be sustained?

05/24 1907

"If you can't come up with two hundred thousand today, don't even think about marrying me home." The bride Litirui said with a heartless look. "In order to prepare for our wedding today, I have spent all our family's savings. Are you deliberately making things difficult for me?" - DayDayNews

"If you can't come up with two hundred thousand today, don't even think about marrying me home." The bride Litirui said with a heartless look. "In order to prepare for our wedding today, I have spent all our family's savings. Are you deliberately making things difficult for me?"

On the wedding day, the bride forced the groom away

05/24 1679

BYD announced in April that it would cease production of fuel vehicles. This news caused a huge stir. At that time, many professionals predicted that there might be major changes in the global automotive field. As the world's first traditional car company to stop producing fuel v - DayDayNews

BYD announced in April that it would cease production of fuel vehicles. This news caused a huge stir. At that time, many professionals predicted that there might be major changes in the global automotive field. As the world's first traditional car company to stop producing fuel v

In 4 years, Audi will no longer produce fuel vehicles? The results of foreign media reports have been released

05/24 1471

Hello everyone, I am Brother Shou. Since the launch of the 2022 new Focus, everyone has been discussing which configuration to choose. Some friends think that the low configuration is the most cost-effective, as the three major components are the same. Some friends think that the - DayDayNews

Hello everyone, I am Brother Shou. Since the launch of the 2022 new Focus, everyone has been discussing which configuration to choose. Some friends think that the low configuration is the most cost-effective, as the three major components are the same. Some friends think that the

How to choose between low and medium configurations of the 2022 Focus

05/24 1224