According to a report by the British Broadcasting Corporation (BBC) on January 3, American and Italian scientists stated that they conducted a chemical analysis of the natural "quasi-crystalline" ore found in Russia. The results indicate that this ore is likely to be part of the meteorite. The impact of the meteorite and the earth was left on the earth. The research was published in the Proceedings of the National Academy of Sciences.
For the first time, quasicrystals were discovered by Israeli scientist Daniel Sheiktman, who also enjoyed the 2011 Nobel Prize in Chemistry exclusively. On April 8, 1982, 41-year-old Shechtman, who was engaged in research work at Hopkins University, discovered the "quasi-crystal" whose atomic structure broke the golden rule that the atomic structure in traditional crystals must be repeatable. It caused an uproar in the scientific community. "Indeed, at that time, people did not accept the existence of that kind of crystal at all." President of the American Chemical Society Nasie Jackson said in an interview with the New York Times on October 5 last year: "Because they think it violates the natural 'rules'." . "
Subsequently, scientists produced various quasi-crystals in the laboratory, and in 2009, scientists Luca Bindi and colleagues of the University of Florence in Italy discovered natural quasi-crystals in mineral samples obtained from Lake Harterka in eastern Russia. Crystal, this new mineral consists of aluminum, copper and iron. Previous analysis has shown that the "quasi-crystal" structure can be naturally formed and can also be stable in the natural environment. However, "how nature has created this structure" has been an unsolved mystery.
Now, Bindi and Paul Steinhardt of Princeton University in the United States have analyzed the chemical composition of this ore, and the results show that this ore may be part of the meteorite, which fell to the earth in a collision with the earth. They pointed out in the paper that the sample contains some silica that can only be formed under high pressure. This kind of silica is either formed in the mantle or in a high-speed collision like a meteorite hitting the earth. The results show that this rock sample has experienced a pressure and temperature and a huge, typical high-speed collision-the meteor on the asteroid belt was produced by this collision; in addition, the relative abundance of different oxygen elements in this rock is even more The relative abundance of oxygen in rocks close to other meteors but not on Earth.
The research team pointed out: "Our research shows that quasicrystals may be derived from space with more variable environments, which also shows that quasicrystals can naturally occur in many environments, and, in the cosmological time scale (enough to clearly see The time scale of evolution has always been stable on a scale of 100 million years. "
Quasicrystals have unique properties. They are hard and elastic, very smooth, and, unlike most metals, they have poor electrical and thermal conductivity, so they can be used to make non-stick pans, light-emitting diodes, thermoelectrics in daily life. Conversion equipment, etc.
We are professional manufacturer, which is established in 2005 and focus on export business to world wide.
We specialized in producing various kinds of tissue products, including Pocket Tissue, mini pack pocket tissue, Travel pack pocket tissue etc.
We provide customized service for pocket tissue, like the printing on the package, tissue size and quantity of each pack etc. We can also supply scented annd balsam tissue.
We supply different kinds of materials, like Virgin wood pulp, Recycled Pulp, Bamboo Pulp (Tree free).
The Material that we used are 100% biodegradable and compostable, Chlorine free and reach European food contact grade standard.
Pocket Tissue
Facial Tissue,Pocket Kleenex,Kleenex Pocket Tissues,Patterned Pocket Tissues
Bobo Tissue Product Manufacturer , https://www.bobotissues.com