1. The last paper before Hawking's birth is to prove the existence of a parallel universe;
Hearing that the "Parallel Universe" is all shocked, is it like a strange world like a strange story? It should be a combination of scientific and philosophical knowledge... I admire Hawking's continuous academic research and contributions!
Although Stephen Hawking, a great applied mathematics and theoretical physicist, has died, his research and discovery in the scientific community is still alive and continues to influence the human perspective on the development of the universe. His last paper published before his death may have been It will lay the foundation for the greatest scientific discovery in the 21st century! The title of this paper is titled "A Smooth Exit from Eternal Inflation" and it will withdraw from the eternal expansion!? (The title of wow is even so difficult!) Provide scientists with a way to discover and prove the "parallel universe" method!!! (Too shocked so I have to give three exclamation marks) The parallel universe generally only appears in science fiction movies, isn't it?
This is a mathematical dissertation. As you all know, Stephen Hawking loves mathematics. He also uses a mathematical theory to calculate and verify the assumptions of the cosmic phenomenon on the way to cosmology. In particular, these mathematical calculations are all only at Hawking's. In the brain, he evolved his own set of mathematical calculations in the brain after the onset of illness. For Hawking, the “square procedure” was only a tedious part of mathematics. He tried to use various geometries to see the problem. (It's so low, this part of the ordinary people can't imagine)
Hawking is not only the first person to propose a cosmological theory that was jointly explained by general theory of relativity and quantum mechanics. His various researches on "black holes" have also deeply influenced the scientific community, and he also proposed the Hawking radiation theory that leads to the reduction of the quality of black holes ( Well, everyone wakes up first. Hawking has always been a supporter of “multi-world interpretation” (ah is the parallel universe). Therefore, he has been searching for ways to prove the multiverse. This “A Smooth Exit from Eternal Inflation” The paper also mentioned that Hawking thinks that other universes are also coexisting in our existing universe (well,... I myself also feel very philosophical)
Figure from Digital Trends
Thomas Hertog, who co-authored the paper with Hawking, said that their goal is to propose scientific methods that can be tested and calculated to prove the theory of “multiverse”, and to measure the initial “background radiation” of the universe using “deep space probes”. Measured evidence, the data is calculated by the mathematical method they proposed. If scientists in the future actually discover the existence of parallel universes, then these scientists may get the Nobel Prize! However, because the Nobel Prize cannot be traced back, The deceased Hawking determined that it was impossible to win prizes...
In fact, Hawking, a theoretical physicist, has put forward many hypothetical theories of human understanding. Even if the existing technology, science, and mathematics knowledge are not impossible to prove, it will take time. The Nobel Prize will only The theory that was awarded to “have been confirmed” is one of the reasons why Hawking never received a Nobel Prize for a lifetime!
2. Symantec: The mining attacks detected last year soared 8500%;
The number of ransomware attacks in 2017 was comparable to that of 2016. Researchers believe that this means that ransomware has become a daily attack. As for the mining and exploiting attacks that took place last September, more than 1.6 million can be detected each month at the end of last year. This attack increased by 8500% over the year in 2016.
Security Symantec (Symantec) released a 2018 Internet Security Threat Report this week, pointing out that in addition to the threat of ransomware, the mining and security attacks have skyrocketed in the fourth quarter of last year. At 8500%, last year's attack on the Internet of Things (IoT) also increased by 600%, and on average each month would find an attack that was close to locking up the supply chain.
The sudden emergence of ransomware in 2016 was revised last year. The number of new ransomware families decreased, and the average ransom fell to 522 US dollars, less than half of 2016, but the number of variants increased by 46%, and 1,242 were detected on an average daily basis. The attack was comparable to that of 2016. Researchers believe that this represents that ransomware has become a daily attack product, and that some hackers have turned to hot mining and exploiting attacks.
The upshot of the security threat last year was undoubtedly the mining process. Although it was only launched in September last year, it detected more than 1.6 million attacks per month at the end of the year, and the number of attacks throughout the year increased by 8500% compared to 2016. In the fourth quarter of last year, it accounted for 16% of Symantec's blockade of web attacks, and in December it accounted for 24% of all web attacks. (Source: Symantec)
The proportion of hackers who attack the average consumer is twice that of the enterprise users. They use the CPU resources on the consumer computer to mine the cryptocurrency for themselves. The infection pipeline is mainly for video streaming websites and other websites that users will stop for a long time. Moreover, not only There will be mining programs on Windows computers and more and more mining programs are detected on Mac.
Last year, Symantec detected 50,000 attacks that locked the IoT device, an increase of 600% from 6,000 in 2016. Symantec warned that although the attack did not occupy a large space in the media, the data showed that IoT devices are very popular with hackers.
Another noteworthy trend is that the number of attacks against the software supply chain has increased from 4 in 2016 to 10 in the past year. Hackers have introduced malware into the supply chain to infect unsuspecting victims or have strict security controls. The internet.
The threat of action is also a category that continues to grow, with Symantec blocking an average of 24,000 malicious actions each day, and the number of malicious malware variants that year has increased by 54% over the previous year.
3.2 Liveliness Three of the top 4 malwares are related to mining;
With the increasing acceptance of digital currency, malicious mining software has become increasingly rampant. According to Check Point statistics, malicious mining software in February affected a total of 42% of organizations in various regions of the world. More or less are affected by malware.
▲ Pictures from Pixabay
According to statistics, in February of this year, 3 of the top 10 most active malwares in the world were mining programs, 'Coinhive, Cryptoloot, and JSEcoin', ranking first in the rankings, and second in rankings. Fourth place. Check Point data shows that about 20% of organizations have been affected by Coinhive, 16% of organizations have been affected by Cryptoloot, 6% of organizations have been affected by JSEcoin, and malicious mining software has affected 42% of organizations in total.
According to IT home, the three major mining softwares are embedded on the website. When users use the browser to browse related webpages, they will move in. Most of them show the CPU running at full speed. The computer is getting hot. Apart from mining software In addition, the list also includes Flash and Java attack program 'Rig ek', malicious adware program 'Roughted', can hijack the browser's 'Fireball' and backdoor program 'Andromed', etc.
4. The Italian team developed a new type of pollutant adsorption material: it is more efficient than activated carbon;
According to Xinhua News Agency, an Italian research team has developed a low-cost material that can more effectively remove pollutants from wastewater and air than the activated carbon, and the preparation process is also more environmentally friendly.
The related research results were published in the latest issue of the online open journal Chemical frontier. The team of Elza Bonntempi of the University of Brescia in Italy introduced synthetic raw materials for this 'green' adsorbent including sodium alginate and silicon powder, the former. It can be extracted in large amounts from seaweed, which is a by-product produced in large quantities during the production of silicon alloys. The synthesis process is simple and can be produced on a large scale.
The researchers used pollutants 'methylene blue dye' for wastewater testing. The results showed that this new material can adsorb and remove high concentrations of dyes with an efficiency of 94%; it can also adsorb particulate matter in diesel exhaust.
Researchers say that this new material consumes less energy and is more environmentally friendly than activated carbon. Currently, activated carbon is widely used to reduce atmospheric and waste water pollution, but it is more expensive. New materials are widely used for coatings. , Can be sprayed, can also be used for 3D printing materials, is expected to be designed as a water purifier or cover the building facade to remove airborne particles.