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This satellite image from the Copernicus Sentinel-2 mission takes us above Kiev - Ukraine's capital and most populous city. (Please note that this picture was taken in 2019, so the flames and smoke of war are not visible). Kyiv, also known as Kiev, is visible just below the cente
Copernicus Sentinel 2 "Space Exploration of the Earth" Series: Ukraine - Kiev
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The imagination of the masses is the art of creation, and it is also the shackles of self-improvement. In 1981, Hilary Putnam put forward a conjecture in "Reason, Truth, and History": A person's brain was cut off from the body and put into In a tank containing a nutrient solution
Metaverse - "the ultimate dream" or "just a fantasy"?
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1970
Original author's analysis: The earth may be destroyed by intelligent humans. The reason is that the development of human science and technology is a good thing and brings happiness to humans, but at the same time, it may also shorten the time humans can survive on the earth. In
Author analysis: The earth may be destroyed by intelligent humans for these reasons
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1903
During the Cold War period after World War II, mankind began a race to develop nuclear weapons, and the United States and the Soviet Union gained the power to destroy the earth. So what would happen if a nuclear bomb was detonated in the Marianas Trench? . The deepest place on Ea
What would happen if a nuclear bomb was detonated at the deepest point on earth?
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1828
Last night, Lao Wen didn't sleep well. Lao Wen has been thinking about a question: What should we do? The Director of the Aeronautics and Space Administration of the United States said that China stole their ideas to occupy the moon and make the moon its own. This is loose, and t
Who should we steal this time?
05/17
1966
By examining the gel, which is formed from an exfoliating solution with added silica nanoparticles and solidifies as the temperature increases, the scientists discovered an unusual and previously unknown optical phenomenon. At 29 degrees, the gel transmits only red light, and at
Scientists create simple filter material with tunable wavelength transmission
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Jeffrey Sachs, chairman of the Lancet COVID-19 Committee, said: The new coronavirus does not have any natural origin. Rather, it was produced in an accident in a US biotechnology laboratory.
Chairman of the Lancet COVID-19 Committee: The virus may have originated in a US biological laboratory
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A strange crystal that scientists have never seen before. Strange crystals under an electron microscope. Taskaev On February 15, 2013, a mysterious fireball streaked over Chelyabinsk in southern Russia. According to estimates, scientists believe that this is an asteroid with a di
Nine years after a mysterious fireball fell in Russia, scientists discovered something strange there
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Introduction: The famous "Lilac Tree" has leaves that look like chicken feet and fruits that look like briquettes, but it has many unexpected uses. In recent years, urban construction has gotten better and better, and the greening of various cities has also gradually improved. Ta
The leaves are like chicken feet and the fruit is like briquettes. It is called "Passepartout", but few people know its value.
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Have you noticed such a pattern? When you sleep alone, you don’t sleep very well. You often wake up immediately due to some movement, or you dream all night. When you wake up the next day, you don’t have any energy. You always feel that Not getting enough sleep. If you sleep in t
Does sleeping with a partner make you sleep worse or better? Study: Sleeping with two is better
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China's sky eye discovered a mysterious signal, which was suspected to come from a foreign civilization, but American scientists poured cold water on it. Recently, a research team from Tianyan announced that in past observations, they discovered several very special signals. Thes
China's sky eye discovered mysterious signals, but American scientists said they came from the earth. Do aliens exist?
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Mangroves, made up of salt-loving trees, shrubs and shrubs, play an important role in providing waterfowl habitat and preventing coastal erosion. Because the areas they occupy are also viable for aquaculture, however, these watery forests face continued development pressure. One
"Space Observation" Ramsar Convention and Vietnam Wetlands
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June 1 to November 30, 2005 As 2007 approaches, an extreme to abnormal drought occurs in the southeastern United States. The year also saw tropical cyclones—tropical depressions, tropical storms, and hurricanes—that often flooded parts of the East Coast and Gulf Coast. Tropical c
"Space Observation" Small tropical cyclones contribute more to annual rainfall
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Atoms were once considered to be the basic particles of everything in the world, but later people discovered that atoms are composed of nuclei and electrons, and there is a vast space between the nuclei and electrons. How vast is it specifically? Let us take the simplest atom in
What exists in the vast space between the nucleus and the electrons? Is it an absolute vacuum?
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1428
I once read "Insects" when I was young, and I was full of yearning for the insect world described by Fabre. I often turned over stones or inspected leaves to look for the small insects hiding in the depths. As I get older, I gradually develop an inexplicable fear of insects in na
An insect pocket book that brings you closer to nature
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We often say that China has five thousand years, which naturally adds up to ten thousand years. Ten thousand years ago is a very interesting node, because it is the time period when humans turned from hunting life to farming. Farming represents villages, and the combination of vi
Could it be said that humans more than 12,000 years ago really existed?
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Site Latest News
Chairman Mao sent a message to emphasize: "Do not appear in public, such as rallies, speeches, etc." At this time, Ye Jianying was the governor of Guangdong Province and the mayor of Guangzhou City. Starting from the third day after entering the city, he had to do it non-stop eve
After Ye Jianying took office as the governor of Guangdong in 1949, Chairman Mao called and emphasized: Do not appear in public
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After hearing the voices of Zhu Wenchang and the others, the people on the other side rushed over immediately. A group of people bumped into each other in the dark and hugged each other. Zhu Wenchang and Liu Yan both greeted the battalion commander Fang Min. The two of them hugge
Historical novel: At the end of the battle, the casualty ratio between military agents and expeditionary force veterans was 60:1
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1202
On the evening of July 2, the 33rd Golden Melody Awards Ceremony was held as scheduled at the Kaohsiung Arena. Although the Chinese music scene has lost its former glory, and the Golden Melody Awards are not as competitive as before, there is still a lot to watch in this awards c
Tanya Tanya won four awards at the Golden Melody Awards, the four-song queen broke Zhang Huimei's record, and Cui Jian unexpectedly won the song king
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As a major event in the Chinese music scene, the Taiwan Golden Melody Awards have always attracted much attention. The gold content of the Taiwan Golden Melody Awards is very important to original musicians. On July 2, the Golden Melody Awards announced the winners. Cui Jian, the
Golden Melody Awards announced! Cui Jian became the first mainland singer to be king, and Tanya Tanya was crowned singer a record four times
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Category 5 5. The person who has won the most King of Songs: Yin Zhengyang: 3 times 6. The person who has won the most Queen of Songs: Tanya Tanya: 3 times Zhang Huimei: 3 times 7. The person who has won the most Best Band: Mayday: 4 times 8. The person who has won the most Best
The top 30 records of the Golden Melody Awards, Zhang Huimei is attracting attention in May, and Jay Chou's record has not been broken!
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-Golden Melody Award for Best Band-Mayday is truly an evergreen band. Did you know that sixteen years ago, when the Golden Melody Awards first established the Best Band Award, Mayday was the first band to win the award.
Mayday Golden Melody Award Milestone Review, Leading Band Era
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