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#Toutiao Creation Challenge# The pulse-detonation engine developed by the Institute of Mechanics of the Chinese Academy of Sciences was tested in a hypersonic shock wind tunnel in Beijing, allowing the aircraft to fly at a speed of Mach 9. The pulse-detonation engine generates gr

Category：science

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2025-08-26

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Recently, the XBB strain has attracted attention. The currently prevalent strains in my country are mainly BA.5.2 and BF.7, but dominant strains such as BQ.1 and XBB have appeared in some countries and have been detected in local cases in my country. What you need to know about X - DayDayNews
On the night of late January 2023, the four planets Mars, Jupiter, Venus and Saturn can be seen in the night sky. Will the alignment of planets lead to more disasters on Earth in 2023? - DayDayNews
In recent years, Nilek County has continued to increase the protection of wild animals and plants, and the populations of wild animals such as shelducks and mallards have achieved restorative growth. In order to avoid casualties of wild animals due to hunger and cold, Nilek Count - DayDayNews
Pursuing all unknown phenomena and postulating unknown theories is the driving force for scientific experiments and exploration, and it is also the driving force for human beings to keep moving forward. There are many supernatural forces in the world. Human beings are afraid of t - DayDayNews
You said you can't go to bed at five or six in the afternoon. It's already 12pm as soon as other people open their eyes. How come 100 years have passed since I opened my eyes, and I've entered the science fiction era? - DayDayNews
Hello everyone, I am a rural dad. Today I will introduce to you a common reptile in rural areas. Its name is gecko. I have a strange question about it: Why does gecko cut off its tail when it encounters danger? - DayDayNews
Is there a COVID-19 vaccine that is a hundred times more powerful than mRNA, can prevent all mutant strains, is extremely low-cost, and can be stored at room temperature? Recently, scientists from Stanford developed a ferritin-based COVID-19 nanoparticle vaccine that can produce - DayDayNews
The results show that ILC3s can promote the differentiation of RORγt+ Tregs and that this regulatory relationship is dysregulated in patients with enteritis, which also suggests that ILC3s regulate RORγt+ Tregs and their important role in maintaining healthy intestinal homeostasi - DayDayNews
Chen Tengteng, who comes from Yancheng, Jiangsu Province, graduated from the Junior Class of the University of Science and Technology of China and was also a student of the first "Yan Jici Physics Talent Class". During this period, he studied under Academician Du Jiangfeng. Subse - DayDayNews
As of now, there are only 5 mutant strains of concern announced by the World Health Organization, namely Alpha, Beta, Gamma, Delta, and Omicron! Among them, Omicron is the virus currently prevalent in our country. At present, the virus is still mutating. According to recent obser - DayDayNews

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