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The case of the girl in Yueqing, Zhejiang Province, who was killed by the drip and the wind, has aroused the attention of people from all walks of life. The occurrence of this case also reminded people of the Zhengzhou flight attendant’s car murder case three months ago. For a time, the voice of the question about the Drip Trip platform on the Internet was soaring. This also sounded the alarm of self-protection for the majority of female friends! We…

Recently, it was reported that a child in the Xiaolan station of the Guangzhou-Zhuhai intercity had not paid attention to drilling into the security inspection machine. The security personnel who saw this situation immediately stopped after the discovery and directed the child to climb out from the exit. According to reports, in addition to the “bear children”, there have been adults who climbed into the security inspection machine for various reasons and “frightened” many security personnel. At the beginning of…

The Boeing 787 “dream window” does not have a visor, but it can change the transparency, and the effect of this is the same – tungsten oxide electrochromic film. The porthole of the Boeing 787 has no visor, but it can change the transparency! You only need to press the button; the porthole will become a “chameleon” until it is completely darkened! Of course, the captain can also dim directly from the cockpit when the night falls. In addition, because…

The tire stud on the snowy road surface includes a flange on the cylindrical nail body at the head of the core, the wing portion at the middle portion, and the lower end portion, and the wing portion and the flange form an acute angle with the nail body. When the stud is used, it is inserted into the tire tread, which is not only easy to install, but also has an anti-shedding effect. Depending on the application and the…

How much more is the need for electrochromic materials to be used in large-scale commercial applications? This is a big proposition that requires us to have a certain understanding of the material before it is enough to think. So, let’s take a rough look at the new materials that may be close to you and may be a little far away from you! In recent years, such a new type of material, electrochromic material, has emerged. Scientists pointed out that…

It is reported that China has developed the first G6 generation ultra-large-size high-end molybdenum target with complete independent intellectual property rights in China, and achieved mass production in the quarter. This means that in the Asia-Pacific region, China is the first country to produce ultra-large-size molybdenum targets for semiconductors. At the same time, it also marks China’s breaking of Europe’s monopoly on this core technology. It should be noted that before this, due to the limitations of production equipment and…

It is reported that graphene is gradually becoming a hot spot in the global scientific and technological community. According to experts, in addition to graphene, this two-dimensional material is gradually entering the field of science and technology. In other words, what are the most popular words in your mind since the 21st century? Is there a place for 3D/3D? Although it is strange to separate them from specific applications, if you talk about 3D movies and 3D printing, you should…

It is reported that a few days ago, scientists successfully developed a 0.7nm tungsten selenide diode, which means that humans have finally broken the semiconductor 3nm process limit, and toward the development of semiconductor technology, and took a small step forward! Why do you say that? As you may be keen on semiconductors, semiconductor process technology is rapidly evolving with the development of smartphones from 28nm, 16nm, 10nm, 7nm, 5nm to 3nm. However, in this process, the miniaturization process of…

Can the tungsten copper alloy cover replace the copper type cover as the mainstream? After consulting the relevant literature, it is found that long and stable metal jet is essential to achieve the desired armor effect, and the medicinal mask material is the key to the formation of high-speed jets. Ground is the key to controlling the shape, size and quality of metal jets. Furthermore, according to the theory of penetrating fluid dynamics, the penetration depth of the metal jet…

HEAT is the abbreviation of the English “High-Explosive Anti-Tank” of the armor-piercing projectile. At the same time, most of them know that the armor-piercing projectile has another name: the hollow charge armor-piercing projectile or the gather-charged armor-piercing projectile. The chemical energy anti-armored ammunition developed based on the Monroe effect (concentration effect) is mainly used to damage armored targets such as tanks and armored vehicles. It is commonly found in tank guns, anti-tank guns, and anti-tank missiles. The hood is the…