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Cockroaches are commonly known as Xiaoqiang, and I believe everyone is familiar with them. Cockroaches are one of the oldest insects on earth, living at the same time as dinosaurs and other ancient creatures. It is even more than 100 million years earlier than the birth of the fi
Should you step on a cockroach if you see one at home?
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It has long been thought that ancient humans moved out of Africa from primarily relatively affluent woodlands along the Mediterranean coast (1, 2). However, a recent work found that this is not the whole picture (3).
Nature | New research finds the hidden "story" of humans' "out of Africa"
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No matter from which angle you look at it, Peng Yongzhen is not one of those who wins at the starting line. This academician of the Chinese Academy of Engineering and professor of Beijing University of Technology cut wood in the mountains when he was young, and did not enter univ
Academician Peng Yongzhen: Don’t let “late start” become an excuse
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High-end polyolefin - one of the eight new chemical materials, is a polyolefin product with high technical content, high application performance and high market value.
The over-trillion high-end polyethylene industry explodes! Have you seized this new blue ocean market?
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Polypropylene is one of the most widely used types of general plastics. It has the advantages of low density, good rigidity, resistance to flexing, chemical corrosion, and good insulation. Its shortcomings are poor low-temperature impact performance, easy aging, and large molding
Is polypropylene shrinkage difficult to control? What are the influencing factors? "Attached is a table of shrinkage rates of common materials"
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A sand battery works like a solar panel: it collects heat and stores it as energy. But sunny days are extremely rare in Finland, especially in winter. So Finnish experts have invented something similar - an eco-friendly battery with ordinary sand inside. New eco-friendly battery
The world's first sand battery has started working | It helps store thermal energy and heat places
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Some time ago, some netizens reported that a strange phenomenon of "thousands of flying swallows" appeared over Leshan, Sichuan. Thousands of swallows hovered over Leshan and made scalp-numbing screams. Seeing this scene, many netizens said: Is the "flying swallows" that appeared
The phenomenon of "flying swallows flying thousands of miles" in Sichuan has triggered heated discussions. What does it portend? A sign of an earthquake coming?
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In Chongming, the mouth of the Yangtze River, there is a group of people responsible for a small but important part of this large project - fishing management. July 4th, sunny to cloudy, southeasterly wind of level 4-5 in the Yangtze River waters.
They shouted in the Yangtze River: This matter cannot be done
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This male lion was really embarrassed today. Its head was accidentally stuck in a bucket. It was so embarrassed that it was able to dig out a room and three rooms from the ground. The most important thing is that there are other lions watching next to it. Fun, in order to get rid
Three male lions were fighting for food, but unexpectedly they plunged into a plastic bucket, lost their way and ran around, losing face.
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This listing is only for the brave, so do your best and witness the magic of these images. These photos from around the world will fascinate you as you see how the spinning planet we live on shocks us.
The white heart, the houses covered with volcanic ash, and the long legs of the owl, there is always one picture that will shock you
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The proposal of dual carbon targets has not only made new energy industries such as electric vehicles and hydrogen fuel vehicles soar, but also provided scientists with a research topic, that is, how to turn carbon dioxide into waste through new technologies to achieve carbon red
New applications for solar energy! Michigan professor proposes new process to use CO2 and water to prepare chemical fuels to achieve carbon reduction goals
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This strange, fluid-like electronic behavior could be used in the next generation of low-power electronics, potentially making them more efficient. Although they are discrete particles, water molecules flow collectively as a liquid, creating streams, waves, eddies, and other clas
Scientists observe for the first time 'electron vortices' that could help design more efficient electronics
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In the classic Korean drama "Blue Life and Death", there is this sentence: "In my next life, I want to be a tree, so that I can always stay in one place and never leave." From ancient times to the present, trees have always been "rooted in the earth" "The image of "appeared", and
Did you know that trees can walk?
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Close your eyes and imagine that you eat some purple grapes and then your whole body turns purple. Isn't this scary? Of course, such bizarre things don't happen to humans. But Melissa Abramovitz told me that this is exactly what happens in sea caries.
How do sea slugs change color?
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How cold is space, and does it drop to absolute zero? What would happen if you fell in without a spacesuit? While science fiction movies would have us believe that space is very cold — even very cold — space itself is not entirely cold. In fact, it actually has no temperature at
How cold is space? The physics behind the temperature of the universe
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[CNMO News] Weight loss has always been a hot topic among people. Some people eat too much and don’t gain weight, while some people gain weight even if they drink water. Therefore, losing weight also troubles many people. They have tried various methods but still have no effect.
It may be possible to eat dry without gaining weight. German scientists discovered signaling molecules that promote fat burning
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During this period, the Taiwan authorities have frequently colluded with external forces, causing the situation across the Taiwan Strait to become increasingly tense and turbulent. In order to contain China's rise, the United States, Japan and other countries have implemented a s
Mainland Army aircraft have not patrolled Taiwan for 7 days, the island has revised the "Defense Manual", and US lawmakers have proposed a Taiwan-related bill
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On the morning of July 7, Xue Feihu, Minister of the Ministry of Human Resources of Jingxiu District, Tian Zhihong, Director of the Veterans Affairs Bureau of Jingxiu District, Dajidian Town and Xianfeng Street and other relevant responsible comrades visited Feng Jianjun, an acti
Jingxiu District, Baoding City: Honor inspires people to forge ahead, and hard work will yield rewards
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Reporter from Taiwan's East New Media ETtoday: Some Taiwanese compatriots in Shanghai have reported that due to the airline's epidemic prevention policy, it is difficult to buy air tickets back to Taiwan in the near future. Ma Xiaoguang: Ma Xiaoguang, spokesman for the Taiwan Aff
Taiwan Affairs Office of the State Council: Adjustment of quarantine time for inbound travelers applies to Taiwan compatriots
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Wang Yumin, deputy secretary-general of the Kuomintang, criticized on the 16th that the guidance process of the new system is unclear and even "one machine with multiple systems". The people, hoteliers and county and municipal governments are at a loss as to what to do. There is
Can I still go out for meetings while staying in an epidemic prevention hotel? Taiwan's new "3+4" entry system is causing chaos on the road
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Introduction: Luxury, nobility and customization have always been the first impression of MRISSTIME. As a century-old watch brand, MRISSTIME adheres to the principle of "perfection" and starts everything from the customer's perspective. It can be said that in MRISSTIME, what it c
MRISSTIME: The only thing that limits you is your imagination
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The "Certificate of Eligibility for Residence" can be regarded as the "Entry Permit" issued by the Ministry of Justice of Japan. After the applicant submits the application to the immigration management agency in the place of intended residence and the application is approved, it
"Latest Notice from the Immigration Bureau" The validity period of residence has been extended again
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