Mechanical Engineering

2024/04/2019:02:04 science 81368

Mechanical Engineering - DayDayNews

Mechanical Engineering - DayDayNews

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Dahe Daily·Yu Video Reporter Liu Ruichao Kang Yafei There is a famous story in "Liezi·Tang Wen", which is "Two Children Debating the Sun" in the textbook, "Confucius traveled eastward and saw two children arguing and asked why." Two children analyze from different angles when the - DayDayNews

Dahe Daily·Yu Video Reporter Liu Ruichao Kang Yafei There is a famous story in "Liezi·Tang Wen", which is "Two Children Debating the Sun" in the textbook, "Confucius traveled eastward and saw two children arguing and asked why." Two children analyze from different angles when the

The "smallest sun of the year" appeared on Monday, and the "dog days" are gradually approaching

05/18 1459

The lobsters mentioned here specifically refer to the giant lobsters that live in the ocean. Their appearance is similar to the common lobsters in our lives, but their sizes are much larger. The reason why lobsters are said to be immortal is mainly related to an accidental captur - DayDayNews

The lobsters mentioned here specifically refer to the giant lobsters that live in the ocean. Their appearance is similar to the common lobsters in our lives, but their sizes are much larger. The reason why lobsters are said to be immortal is mainly related to an accidental captur

Theoretically, lobsters can live forever

05/18 1605

The editor has recently become obsessed with ferns. Their leaves generally have a mathematical beauty like the golden ratio. There are many types, and most of them are beautiful. They can be seen in forests, riversides, and in the courtyards of ancient houses. Fern and nautilus a - DayDayNews

The editor has recently become obsessed with ferns. Their leaves generally have a mathematical beauty like the golden ratio. There are many types, and most of them are beautiful. They can be seen in forests, riversides, and in the courtyards of ancient houses. Fern and nautilus a

Fragrant garden | "Pteridophylla fern", the "living fossil" of the plant world

05/18 1059

Satellite images from NASA and the European Space Agency have captured the appearance of the first sunspot of the new solar cycle. Sunspots are areas of intense magnetic activity, dark spots visible on the surface of the sun. Sunspot activity rises and falls with an approximately - DayDayNews

Satellite images from NASA and the European Space Agency have captured the appearance of the first sunspot of the new solar cycle. Sunspots are areas of intense magnetic activity, dark spots visible on the surface of the sun. Sunspot activity rises and falls with an approximately

"Space Observation" The beginning of a new solar activity cycle

05/18 1236

[Academician of the Chinese Academy of Sciences and Southwest University #Karstologist Yuan Daoxian won the International Award#] The reporter learned from Southwest University on the 3rd that at the recently held Eurokarst2022 conference at the University of Malaga in Spain, #my - DayDayNews

[Academician of the Chinese Academy of Sciences and Southwest University #Karstologist Yuan Daoxian won the International Award#] The reporter learned from Southwest University on the 3rd that at the recently held Eurokarst2022 conference at the University of Malaga in Spain, #my

[Yuan Daoxian, academician of the Chinese Academy of Sciences and Southwest University #karstologist, won the international award#]

05/19 1599

1. Do frogs eat fish? In a series of articles on One Hundred Thousand Whys in Life, I once said that "frogs only eat small bugs, not fish", but the fact that I encountered a frog eating fish in a pond slapped me in the face. I caught a frog in the pond, squeezed its belly hard, a - DayDayNews

1. Do frogs eat fish? In a series of articles on One Hundred Thousand Whys in Life, I once said that "frogs only eat small bugs, not fish", but the fact that I encountered a frog eating fish in a pond slapped me in the face. I caught a frog in the pond, squeezed its belly hard, a

Record bits of wisdom in life every day (1)

05/18 1862

Recently, scientists discovered that two previously dead stars collided and combined to create a new star that burns hundreds of times as brightly as the sun and is covered in carbon and oxygen, the ash byproducts of helium fusion. Like fiery phoenixes, some stars may explode in - DayDayNews

Recently, scientists discovered that two previously dead stars collided and combined to create a new star that burns hundreds of times as brightly as the sun and is covered in carbon and oxygen, the ash byproducts of helium fusion. Like fiery phoenixes, some stars may explode in

Two Death Stars collide and combine to create a new star

05/18 1021

In recent years, our country has raised the concept of environmental protection to an unprecedented new level. The vast majority of Chinese people no longer miss the days when wild animals were regarded as food. Everyone naturally regards living creatures as neighbors and even fr - DayDayNews

In recent years, our country has raised the concept of environmental protection to an unprecedented new level. The vast majority of Chinese people no longer miss the days when wild animals were regarded as food. Everyone naturally regards living creatures as neighbors and even fr

In order to protect the cubs, female bears in the wild have learned to seek help from humans and deal with violent males in estrus.

05/18 1018

When the planet experiences events such as fault movement, rising magma flows, and massive landslides, energy is released, and seismic waves are one of the results. In a new study, scientists found that earthquakes occurred at similar locations in the Kermade Islands in the South - DayDayNews

When the planet experiences events such as fault movement, rising magma flows, and massive landslides, energy is released, and seismic waves are one of the results. In a new study, scientists found that earthquakes occurred at similar locations in the Kermade Islands in the South

Study finds: Earth's outer core is changing over time

05/18 1316

When you see a cockroach, do you still kick it and send it to its death? As everyone knows, if you do this, not only will the number of cockroaches in your home not decrease, but they will increase in number. So, why does this happen? The more cockroaches you fight, the more cock - DayDayNews

When you see a cockroach, do you still kick it and send it to its death? As everyone knows, if you do this, not only will the number of cockroaches in your home not decrease, but they will increase in number. So, why does this happen? The more cockroaches you fight, the more cock

Don’t step on cockroaches in your home! How to control cockroaches that are still alive even though their heads are severed?

05/18 1074

Xu Deng has already played two games with Ling Dujun on whether the derivation process of the Lorentz transformation in Einstein's special theory of relativity is related to light, and the third game has already begun. - DayDayNews

Xu Deng has already played two games with Ling Dujun on whether the derivation process of the Lorentz transformation in Einstein's special theory of relativity is related to light, and the third game has already begun.

Regarding the issue of relativity, Xu Deng has laid a Zhenlong chess game for Mr. Ling Du. Can you solve it for him?

05/20 1773

On July 3, the Japan Marine Research and Development Agency announced that a giant deep-sea fish was photographed at a depth of more than 2,000 meters. According to the information released by Japan on the Yokozuna sardine, this deep-sea fish is dark blue-purple in color and has - DayDayNews

On July 3, the Japan Marine Research and Development Agency announced that a giant deep-sea fish was photographed at a depth of more than 2,000 meters. According to the information released by Japan on the Yokozuna sardine, this deep-sea fish is dark blue-purple in color and has

A 2.53-meter giant deep-sea fish was discovered in Japan! The thick head and big mouth are suspected to be related to Japan’s nuclear wastewater

05/19 1980

[Source: Wuqing Ecological Environment] What is renewable energy? Renewable energy refers to energy that can be continuously regenerated and utilized in nature and is inexhaustible. Renewable energy comes from natural processes that are constantly replenished. - DayDayNews

[Source: Wuqing Ecological Environment] What is renewable energy? Renewable energy refers to energy that can be continuously regenerated and utilized in nature and is inexhaustible. Renewable energy comes from natural processes that are constantly replenished.

Environmental Science Popularization丨What is the difference between renewable energy and clean energy?

05/19 1257

The great dream of landing on Mars around 2035 is news that makes hundreds of millions of Chinese people happy. However, few people have considered why we are on Mars instead of Venus, which is also a "neighbor" and is even closer to the earth. In fact, no one has tried to explor - DayDayNews

The great dream of landing on Mars around 2035 is news that makes hundreds of millions of Chinese people happy. However, few people have considered why we are on Mars instead of Venus, which is also a "neighbor" and is even closer to the earth. In fact, no one has tried to explor

Why did the probe land on Mars but not the nearest Venus? Is there something scary up there?

05/19 1187

Are white holes the key to time travel? Do white holes really exist? Will there be a white hole if there is a black hole? Can white holes time travel? - DayDayNews

Are white holes the key to time travel? Do white holes really exist? Will there be a white hole if there is a black hole? Can white holes time travel?

Will there be a white hole if there is a black hole? Can white holes time travel?

05/19 1615

Earlier related coverage: Roswell Daily Record newspaper announced the capture of a 'flying saucer' - DayDayNews

Earlier related coverage: Roswell Daily Record newspaper announced the capture of a 'flying saucer'

2015.5.6 Roswell incident in Mexico announced·Truth or hoax?

05/19 1484

The new president of the Philippines, Marcos Jr., has had a bumpy and hard journey to glory. In this way, a man with no academic qualifications, with the support of his strong family and mother, finally became the 17th President of the Philippines. - DayDayNews

The new president of the Philippines, Marcos Jr., has had a bumpy and hard journey to glory. In this way, a man with no academic qualifications, with the support of his strong family and mother, finally became the 17th President of the Philippines.

The new president of the Philippines of Chinese descent——Marcos Jr.

05/20 1986

The new president of the Philippines, Ferdinand Romualdez Marcos, must be a headache for the United States. The Philippine president, who will officially take office in late June, has shown a more radical pro-China policy than the "pro-China President" Duterte. The United States, - DayDayNews

The new president of the Philippines, Ferdinand Romualdez Marcos, must be a headache for the United States. The Philippine president, who will officially take office in late June, has shown a more radical pro-China policy than the "pro-China President" Duterte. The United States,

More pro-China than Duterte! The new president of the Philippines met Chairman Mao and stated that he would not be a pawn of the United States

05/20 1896

I am very happy to share with you this new house of the owner. He spent 200,000 yuan to decorate a 100-square-meter new house. The price is not very high, and it can be considered a relatively normal decoration range. - DayDayNews

I am very happy to share with you this new house of the owner. He spent 200,000 yuan to decorate a 100-square-meter new house. The price is not very high, and it can be considered a relatively normal decoration range.

Spend RMB 200,000 to renovate a 100-square-meter new house, put effort into the design, and create a warm living environment for your own home.

05/20 1297

It’s the middle of the year again, when the war for banks to acquire deposits is supposed to intensify, but various branches seem a little calm. There have been very few deposit-taking activities, and the increase in deposit interest rates has not come as expected. The interest r - DayDayNews

It’s the middle of the year again, when the war for banks to acquire deposits is supposed to intensify, but various branches seem a little calm. There have been very few deposit-taking activities, and the increase in deposit interest rates has not come as expected. The interest r

The war to acquire savings stalled in the middle of the year, and the current interest rate of ordinary fixed deposits "inverted"

05/20 1480

Sunday, July 3, 2022 Qing originally worked in Zhudian Village today, but she asked for leave and went home because she had to come back to take the exam. After I got up in the morning and freshened up, my colleague drove me from the village to the town. When I arrived in the tow - DayDayNews

Sunday, July 3, 2022 Qing originally worked in Zhudian Village today, but she asked for leave and went home because she had to come back to take the exam. After I got up in the morning and freshened up, my colleague drove me from the village to the town. When I arrived in the tow

Don't forget to feel happiness

05/20 1142

First of all, we must distinguish Dong Yuhui from Oriental Selection. Teacher Dong is just one of the anchors of Oriental Selection. Although Xiao Dong is primarily responsible for the current popularity, it is even said that without Dong Yuhui, Oriental Selection would not be as - DayDayNews

First of all, we must distinguish Dong Yuhui from Oriental Selection. Teacher Dong is just one of the anchors of Oriental Selection. Although Xiao Dong is primarily responsible for the current popularity, it is even said that without Dong Yuhui, Oriental Selection would not be as

How long can Dong Yuhui of Oriental Screening remain popular? Is it a flash in the pan?

05/20 1561