Distributed story in blockchain ecology

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“Trevets looked up and looked as if they were penetrating thick layers of moon rock, reaching the surface of the moon and interplanetary space; it seemed as though they were trying hard to see the distant galaxies that were slowly moving in the incredible space of Hongmeng.” The famous American science fiction novelist Asimov ended in “Base and Earth.” This novel predicts that due to the ideological struggle of everyone in the galaxy, the war is imminent, and the protagonist, Treviitz, is looking for ways to make the entire galaxy more harmonious. “If the blockchain really drives our human civilization, and this development can make us go to the interstellar world, then every step we make for the blockchain is proud, maybe at this moment we are the children of the stars. “Coin circle old man, old partner of Coin Capital, expressed so much emotion in a recent public speech that he claimed to be the promoter of bitcoin and blockchain industry. Li Xiaolai, a friend of the old cat and a partner in the coin capital, recently said that there is no belief in bitcoin. “People who have faith do not need logic. I belong to logic more. I hold Bitcoin because I think it is logically correct.” He also suggested that when discussing Bitcoin, try to only follow logic. At the level of discussion, philosophy, world view, and feelings are not completely compatible with logic. On April 9th, the old cat and Li Xiaolai came together with the Hangzhou Municipal Government to launch the “Xiongtan Global Blockchain 10 Billion Innovation Fund”. A week later, “Cyclic Circle” wrote a lot of emotions in the circle of friends: “The coins circle brothers are not easy to swear, laughing to the Songjiang return to the North Korea, roast cats unpredictable, Zhao Dong tombs climbed, star sulfuric acid face wash, Erbao far away from home, the bulk of Gods tour Qingshan.” At present, the blockchain world seems to be far away from the ideal of the old cat. Nowadays, the big brothers’ mutual enthusiasm and accusations are sent to the industry to adjust the boring dopamine; blockchain, especially the ICO and the exchange’s entrepreneurs We are looking for other countries to seek a safety radius; the season is already blowing in the spring but the industry is still cold and chilly, everyone warms up in the WeChat group, telegram group, conference summit, waiting for the bull market to come… Whether it is real Nakamoto Satoshi or not, it has been very difficult for Craig Wright recently. On April 4th, V Shen appeared at the Walkerhill Hotel in Seoul, South Korea, to attend the Deconomy International Blockchain Forum. His debut did not evoke any cheers, even because the interaction with Craig S. Wright made the scene slightly “awkward.” During the roundtable discussion, he pointed to Wright’s many mistakes in his speech and bluntly said, “Why is this liar able to speak at the conference?” PANews, who was just on the scene, saw people stunned and laughed. Then Wright replied sarcasm on Twitter: “When we were discussing BCH (bitcoin cash), he knew that ETH (Ether) would eventually die out.” His supporters also defended the Internet. Vitalik Buterin, known as the V-God, was a talent born in 1994. At the age of 19, he used […]

Researchers found that 4G vulnerabilities can steal user information and send false alarms

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According to foreign media reports, researchers at Purdue University and the University of Iowa after research and investigation found a large number of new vulnerabilities in the 4G LTE network, they can peeping user information, tapping their phones, making the device offline or even false Emergency alert. The researchers described 10 attacks in detail in their response report. These vulnerabilities can initiate authentication relay attacks by emulating the identities of existing users. While verifying that relay attacks are not new attacks, recent research shows that they can be used to intercept messages, track users’ locations, and prevent them from connecting to the network. During the study, researchers used a test framework called LTEInspector that helps detect loopholes in LTE radios and networks. Syed Rafiul Hussain, a member of the research team, said that among the 10 attacks they discovered, they have identified 8 of them with SIMs from four major carriers in the United States. “Most of these attacks are rooted in the lack of proper authentication, encryption, and playback of critical protocol information.” Hussain said the vulnerabilities could be used to ficture the victim’s device’s location. This will give some criminals a hindrance to the progress of investigations by law enforcement officials through the placement of fake location information. Another is to send “false alarms” to devices in specific areas, triggering “human confusion.” The warning of a ballistic missile in Hawaii in January this year caused quite a stir in the area, except that it was not triggered by a cyberattack, but both had the same impact. Hussain said they found that a carrier in the United States has never been able to encrypt aircraft information and is most likely to be used by cybercriminals to steal cell phone messages and other sensitive data. However, Hussain did not disclose the company’s name, but said the other has been fixed. The researchers also said that anyone can use the common software radio and open source 4G LTE protocol software to launch these attacks, the cost can be as low as 1300 US dollars to 3900 US dollars. However, they will not be released with any proof-of-concept code until the vulnerabilities have been fixed. While every merchant promises that the upcoming 5G network will become faster and safer, it is clear that 4G LTE will not disappear in the near future, so these loopholes should not be underestimated.

Is Musk’s space Internet successful?

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SpaceX, a unit of Elon Musk, sent two test internet satellites into space. This means that Musk has joined a space race that has left many people dreamy of death. Each company has burned billions of dollars in its dream of providing Internet services to the world through low-orbit satellite systems. Globalstar, a satellite carrier, and Iridium Communications, an Iridium satellite, are on the brink of bankruptcy. The dream is also underpinned by Microsoft founders Bill Gates, Boeing and other investors. But the bleak reality did not block the progress of nearly two dozen companies. They are scrambling to raise funds to reach out to more Internet broadband users, including many who are beyond the reach of traditional mobile services. Icon: Falcon heavy rocket “There is not much more than hysteria and unrealistic expectations,” Roger Rusch, president of Palos Verdes, a California-based market consultancy, said in an interview. SpaceX, one of Muskela’s space exploration technology companies, OneWeb of Greg Wyler, Boeing, and Telesat of Canada are demanding that the Federal Communications Commission (FCC) allow its use of satellites to provide Internet broadband services. But Lusch said the technical challenges are daunting. Low-orbit satellite systems not only require complex software to operate satellites, but also require complex ground antenna systems to keep pace with satellites in the sky. Lush noted that operating expenditures will soon exceed the savings made using small satellite equipment. Boeing is applying to the FCC for licenses for 60 satellites, and last year the FCC had licensed OneWeb to use the 720 satellite service licensed by the United Kingdom to the U.S. market. SpaceX’s plan would require 4,425 satellites to be in orbit, and it will submit an application to the FCC for an additional 7,518 satellites. Ajit Pai, chairman of the Federal Communications Commission, expressed his support for the application, which makes it possible for SpaceX to license Internet broadband services through low-orbit satellite systems. According to the Union of Concerned Scientists, a coalition of U.S. scientists for anxiety, as of August last year, there were 1,738 orbiting satellites in orbit worldwide. The number of satellites in the SpaceX program will far exceed the number of satellites currently in operation in all countries. SpaceX spokesman John Taylor said in an emailed statement that the two satellites launched last week are all test equipment. “Even though these satellites are on track as planned, we still have a lot of technical work to do in designing and deploying low-orbit satellite systems,” said Taylor, which will provide affordable high-speed Internet access in less populated remote areas Into service. LEO satellites range from 50 to 1,200 miles (80 to 2,000 kilometers) above the Earth and run around Earth orbit every 90 minutes. Traditional communications satellites, about 22,000 miles (36,000 kilometers) above the ground, require one day to travel around the Earth’s orbit and stay relatively still with the Earth itself. Low-orbit satellites offer additional advantages in sending and receiving wideband signals with less signal latency and no interruption in phone calls and streaming video. At present Universal Broadband service has become a more compelling target, said Satellite Industry Association President Tom Stroup, with a growing demand for satellite services. Strlub said the new generation of satellites has become more compact and lightweight. “We’ve gone completely beyond the realm of experimentation,” […]

The study found that the vast majority of blockchain still belong to “pseudo-decentralization

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People always talk about the beach, all your worries disappear. But this is not entirely true of researchers at the 2018 Financial Crypto 2018 conference this week in Curaçao, an island in the Caribbean, where they discussed two of the largest crypto-currency protocols, bit Money and Ethereum, and some of their shortcomings. On March 2, researchers at the University College London published a new essay entitled “An egalitarian social or philanthropic government: Encrypting the State of Money Management” by measuring how many developers are involved and modifying Encrypted currency code library, which further in-depth study of this topic. According to the paper, 7% of Bitcoin Core’s software is written by the same developer, and about 20% of the files are written by the same coder. According to Sarah Azouvi, Ph.D., Ph.D. in computer science at the University College London, co-author of the dissertation, based on the research information above, Ethereum is more centralized than Bitcoin in this regard. This is an interesting point because it involves the current fierce debate in the Ethereum community where the two sides are tit-for tat against the EIP 867. EIP 867 seems to have made it easier by recovering lost funds through software changes – a controversial topic that dates back to the 2016 hacking of DAO, when Ethereum Of developers decided to reverse the transaction, so as to return the stolen funds to the victims. However, while there are often many similar discussions on GitHub, the total number of related discussion users involved is less than what Azouvi and many others expect. She told CoinDesk: “There are still not many people involved, and most of them make some comments everywhere, and not many are critical discussions.” Those decision makers However, the debate over funding losses at Ethereum is not the only reason Culexo’s participants discussed the web. Another reason highlighted in this paper is management, as most of the major code changes in Ethereum were written by Ethereum creator Vitalik Buterin himself. “He stands out from everyone,” Azouvi said. This finding is not surprising, as it has been the focus of debate for some time, and many believe Buterin has too much power over the web in a blockchain known as truly decentralized. Even Jason Teutsch, developer of TrueBit, an Ethereum expansion agreement, jokes that even when asked about management-related issues, Buterin can even handle everything. However, on a more serious issue, he believes that the recent debate has only shown how difficult blockchain management is under normal circumstances, and generally there is no way for everyone to be satisfied. Teutsch told CoinDesk: “It’s a hard question, it happens to every system that needs to be managed, and it’s always upset every time things change.” Not so unusual However, while the management of the blockchain seems to be more central than the decentralized projects expected of people, researchers at the University College London have pointed out that this is not unusual. For example, Ethereum and Bitcoin have similar levels of engagement with other open source projects, such as the programming languages ​​Clojure and Rust. “Although the community is focused on decentralization, it’s no different and they all behave similarly,” she said. In addition, the paper admits that “measuring the degree of centralization by looking at the code or looking at a particular source” […]

Where do the magnetic fields that shape the universe come from?

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The power that shapes our universe is not solely gravity. The magnetic field that has long been forgotten may have played an important role in it. Image Source: “New Scientist” (Compilation / Shea) Whenever it comes to the universe, gravity does its part. It allows our feet to stand firmly on the ground, and it shapes our universe. It causes the cloud of gas to collapse, forming stars and planets. It gave birth to hundreds of billions of stars in galaxies. It is also under its influence that galaxies converge into galaxy clusters and further form super-galaxy clusters. However, in this game, gravity is not the only player – there is a force between the universe, it is magnetic.

Shi Yigong: All fertilized eggs 3.5 billion years ago from the same cell the same material

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On January 17, 2016, Prof. Shi Yigong, vice president of Tsinghua University, dean of Tsinghua University’s School of Life Sciences, academician of Chinese Academy of Sciences and structural biologist, delivered a speech titled “The Limit of Life Science Cognition “Speech. 1 Where do people come from? Today, I want to discuss with you the essence of life and the limits of life. Let’s see where people come from

Google once again breakthrough in the quantum computer, released 72 qubits processor

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According to a 9to5google foreign media report, Google Quantum Artificial Intelligence Laboratory announced the advent of the Bristlecone quantum processor, which “provides a more convincing proof of principle for building larger quantum computers.” Quantum computing is often referred to as a frontier in the technology industry and is expected to dramatically improve the computational performance of the device. But the field is still in its early stages of development and many companies are exploring this area. Quantum computing is the intersection of computer science and quantum physics. The current computer still relies on the Boolean logic system to operate, the Boolean type has only two values: true and false.

NASA to launch new telescope next month or find “new Earth” outside the solar system

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In a clean room at NASA’s Kennedy Space Center, a small telescope is being placed on a plateau for the final series of tests before launch. The reason why the test is extremely strict is that the four cameras of this telescope will have no protective cover when fired. This is one of the simplified design decisions NASA has made to help TSP achieve its goal of detecting at least 50 potential small-sized rocky planets. In fact, the TESS proposal is even older than NASA’s Kepler telescope project. Kepler, launched in 2009, confirms the space survivability of the extraterrestrial planetary probe. Both telescopes have adopted the “Lingri method” to find extraterrestrial planets. The Kepler telescope not only confirms that Lingri Fa is a powerful planetary search technology but also finds that our galaxy is populated with an alarming number of planets, many of which are two to four times larger than our own. In the initial mission phase, the Kepler telescope searched for stars a thousand light-years away in the starry sky of Cygnus, Lyra and Draco. So far, scientists have determined that out of the roughly 170,000 stars Kepler has explored, 2,341 aliens orbiting these stars revolve around them. Another 4496 candidate planets have not yet been identified, but many of the planets may never be validated because their host stars are too dim to make ground-based telescopes more difficult to observe in subsequent studies. TESS project team used a reverse observation method, first using the ground observation station to determine the candidate class of planets, and then astronomical telescopes to determine the observation target. They selected about 200,000 stars for the first two years of TESS’s mission. The European Space Agency’s Gaia telescope details each of the target stars, and the Gaia telescope is creating a catalog of the universe’s most complete planetary positions and distances ever recorded. Most of TESS’s targets are within 300 light-years of Earth’s distance and closer to most of the stars explored by the Kepler telescope, and their brightness is even brighter. Stephen Rinehart, a project scientist from NASA’s Goddard Space Flight Center, said: “In the TESS project, we will be able to conduct follow-up ground tracking studies of all our targets and that’s a matter of sequence and there is no issue of ability.” Ling-day detection technology to detect the relative size of the planet and host stars. If multiple canvassing phenomena can be observed, scientists can also determine the position of the star’s orbit from the star. This information can then be used to assess its temperature and the likelihood of liquid water on its surface, which is the planet Is a key factor in livable. But assessing the mass of a planet requires determining whether it is made of metals and rocks similar to the Earth or ice and gas, when astronomers probe with a geospatial telescope. This usually requires a medium-sized observatory to observe the star’s light swing caused by gravitational attraction. The TESS project is recruiting dozens of astronomers to participate in the project, and plans to use the free time of several ground-based telescopes for follow-up research. TESS is currently scheduled to launch in mid-April this year, about two months after its launch, it will begin to search nearby nearby planets. At that time, the astronomical telescope […]