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.
According to foreign media reports, the Nikkei Asian Review reported January 29 and February 20 that Apple is reducing the production of iPhone X from 40 million units in March to 20 million units in March. This seems to be the market for the iPhone in March quarter of the quarter was significantly lower than the previous quarter in December last year, iPhone X sales will be disappointing. But when you look at these numbers and compare them to the new products of the same period last year, you will find that 20 million iPhone X data are more historical. The article, January 29, pushed Apple shares to fall more than $ 3 a share, plunging from $ 171.51 to $ 167.96 a share. A few days later, the company’s performance outlook for the quarter’s March results also did not help, as the market is still expected to play a role in the super cycle of the iPhone, the company’s December quarterly earnings release the day after the stock fell To 160.50 US dollars. However, on Friday, the company closed at 176.21 U.S. dollars, regaining all previous losses. The other 30 million iPhones produced seem to be ignored The Nikkei Asia Review said on January 29 that “Apple will halve the iPhone X production target within three months starting in January from the 40 million set at the time of its launch in November last year. The U.S. tech giant has informed its suppliers that it has decided to cut its production target for the first quarter to about 20 million. The article concludes, “It is estimated that Apple will maintain a total of 30 million production targets for low-priced products such as the iPhone 8 and 8 Plus.” That is, a total of 50 million iPhone production, which is in line with the quarterly iPhone in December last year 77.3 million sales compared to a decrease of 35%. In the past two years, such a decline of 32% and 35% respectively, so the 35% decline is not unusual. iPhone 8 release seems to be investors “forgotten” Market research firm Consumer Intelligence Research Partnership (CIRP) estimates that iPhone 8 and 8 Plus accounted for 24% and 17% of iPhones sold in the United States in the December quarter respectively. Together, the two accounted for 41% of the total, a double that of CIRP’s estimated iPhone X sales of 20%. In addition, iPhone 8 and 8 Plus average selling price is slightly higher than its predecessors iPhone 7 and 7 Plus. This helped raise the total iPhone sales price from $ 696 to $ 797 and a year-on-year increase of $ 101. Josh Lowitz, co-founder and co-founder of CIRP, said: “All three of the newest iPhones accounted for less of the total US iPhone sales in the December quarter than in the same period last year. The same period last year, iPhone 7 and 7 Plus two sales in the total iPhone sales accounted for 72%. He also said, “However, with the previous release of the iPhone is not comparable.First, the iPhone X is not the beginning of the quarter when the introduction of Apple’s product lineup further market segmentation, the company now has 8 products, but also Apple released new handsets at different times, releasing three new handsets at a […]
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,” […]
According to VentureBeat, none of the smartphones launched at this year’s World Congress on Mobile Communications (MWC) in Barcelona have yet a stunning product. As usual, various manufacturers released a variety of smart phones, Samsung once again dominate. In addition, network neutrality has been the focus of attention as Ajit Pai, chairman of the Federal Communications Commission (FCC), attended. 5G also has many early and interesting innovations, but the distance remains a reality. However, under the flagship of Samsung and the future of 5G Dreamland, HMD Global shines this year. Known as the “Nokia Phone House,” the company introduced more than one new product and two new products, but five new Nokia branded phones. In addition to four smartphones, including the flagship Nokia 7 Plus, and a nostalgic product in the form of a redesigned Nokia 8810 “banana phone,” it is clear that the Nokia handset brand regains its attention here. Rebirth? If you have been following the legend of Nokia phones for the past few years, you know the background story, but we still need a brief review. Nokia itself no longer produce mobile phones. In 2016, the Finnish company helped set up a new business called HMD Global to ensure that Nokia’s mobile phone brands will survive the licensing agreement. HMD Global mainly develops Nokia-branded smartphones and feature phones, while Foxconn subsidiary FIH Mobile is responsible for production tasks. Therefore, in addition to lending the famous names of these phones, Nokia has no direct connection with the development of these phones. After all, when you have a good traditional cell phone brand and it’s accepted by billions of people, why are you using the HMD Global name on your new device? Although HMD Global is still in its infancy, things have proceeded quite smoothly. In December last year, HMD Global launched 6 smartphones and 5 feature phones in the market during the first full year of its 10-year license agreement. Together with five other new devices announced at MWC, Nokia will soon have 16 new mobile devices available for purchase worldwide. Early sales figures are encouraging. In December last year, Counterpoint Research analysts reported that in the third quarter of 2017, from the point of view of handset shipments, Nokia branded handsets are the eighth most popular handsets in the world and the best-selling brand in the Middle East Britain’s third best-selling brand. But it is worth noting that these data include feature phones and smart phones. However, the same analyst reported the fourth quarter of 2017 last month, noting that Nokia smartphones have outsell HTC, Sony, Google, OnePlus, Lenovo and others. Obviously, HMD Global sold 4.4 million Nokia smartphones last quarter. These numbers are not specific, but make people happy. HMD Global apparently wants to strike hard while MWC announces the launch of five new handsets. However, do not be over-proud, as Nokia’s recent footprint accounts for only 1% of the total smartphone market share. More importantly, we should look at the bigger picture to see how Nokia did it. Decline Historically, the timing of the latest release is noteworthy, with Nokia’s handset brands having been stuck in the downward direction for the last decade. In February 2008, market research firm Gartner released a report that Nokia is the world’s largest mobile phone brand, accounting for about […]
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” […]
Musk’s way of learning is the basis for his continuous innovation, and the application and reconstruction of knowledge is the reason why he can innovate continuously. This article is compiled from Medium, originally entitled “Want To Innovate Like Elon Musk? Know How To Learn Like Him First,” by Kunal Shandilya. Years ago, I had developed an app in the Google Play Store, and I was able to develop products that led the way in the same category of apps, but bleak compared to products that Musk had developed. Compared to Musk’s development process at that time, I took him a completely opposite development path. The fact also proves that how my development is unscientific. However, there are still a lot of developers like me, and they are not aware of the disadvantages of their own way of doing things because they are too busy learning to notice the inherent nature of learning and do not realize there is a better alternative The program is next to it. When I was learning product development, I used a lazy learning method that requires learning from generic learning, an Android-specific library to learn before learning JAVA common library. Before I learned how to implement basic functions, I first learned how to call complex part. Accompanied by functional innovation, the realization of more and more difficult, the difficulty of developing gradually increased, and sometimes I have to go to Google to search some of the basics and common sense I should have known, and thus wasting a lot of time. Reflecting deeply on this learning process, I also come to understand why the behind-the-scenes employers of several large corporations world-renowned for innovation are opposed to such learning. As I prepare to explore a new way of learning, seeing what Musk suggests to everyone, he always suggests that learning should start from the ground up. The system of knowledge is like a tree with leaves, fruits, trunks and roots . Musk that learning should follow the law of natural growth of the tree, the first to grow roots and then grow the trunk and then extract the sprouts. Reflect on my learning process, I was based on the needs of the application to learn, which is equivalent to I grow branches before the buds have been drawn, according to the needs of learning, learning content is narrower, it will result in basic learning is not deep enough , You will naturally need to constantly rework to learn more basics to enrich the trunk of the tree of knowledge. According to Musk’s learning suggestions, I am in the development of APP should: 1. Learning system composition and working principle; 2. Understand the system’s hardware and software features 3. Understand the nature of programming 4 understand that there are those programming languages and programming system 5. Learning algorithms, language specifications, libraries and other basic language content, such as learning JAVA language specifications, JAVA algorithms and libraries, etc. 6. Understand what kind of Android system, how to run 7. Learn JAVA based on the Android library-specific functions and components If you look at this way of learning, do you understand why Musk will be different? It is because of his tireless continuous mining study of the essence, until he touched the bottom of the knowledge, he will give […]
How long can an iPhone last? How often do people upgrade their iPads? Is it true that people treat Apple’s consumer devices as “frequently updated” or “renewed every year” as often seen on the web? We all know that the life span of a single device will naturally vary from person to person, but are the lifecycles of the Apple devices we perceive from the perimeter channels as their true lifespan? Although Apple officials have never directly responded to this question, one of the official documents, “More Answers to Apple and Environmental Responsibilities,” states explicitly: “… We estimate the useful life of the first user, the assumptions 4 years for macOS and tvOS devices and 3 years for iOS and watchOS devices … ” In other words, from Apple’s own estimated model point of view, the product life cycle this figure conservatively estimated at 3-4 years. But how did this figure come out, whether it followed a set of existing logic, probably only Apple himself knew. Now every three Apple devices, two are still in use Today, Horace Dediu, Founder and Independent Analyst from Asymco, gives us a more detailed and “plausible” solution based on current The number of active devices and accumulations of Apple devices Total sales, not only estimated what he considered more convincing user satisfaction, but also ultimately estimated the actual average lifespan of Apple devices in the user community. In the past on the iPhone word of mouth coverage, often heard is the “customer satisfaction” or “loyalty” and other relatively vague indicators, the favorable rate of 98% of the figures are not new, but the lack of visual presentation. Horace Dediu also believes that the “customer satisfaction” number is difficult to convince. Most of the respondents think that they are often “good things,” especially when the interviewee is in a state of uncertainty. This sense of self-suggestion Particularly strong – for example, we will be out of trouble for the psychological to Taobao some of the products, drip drivers and takeaway brother readily hit a five-star praise, even if the products and services are not entirely satisfactory. Good products speak for themselves, the value of good products not only reflected in the frequency of daily use, but also will be reflected in the duration of use, which is “the number of active devices,” the more valuable reason. If “cumulative sales” represent a company’s existing performance, then “active equipment” is more likely to reflect its development prospects. Earlier this year in early February, Apple CEO Tim Cook disclosed in the earnings conference: January 2018 Apple’s active device volume reached 1.3 billion, which is also after January 2016, Apple’s second public its own active equipment number. Horace Dediu draws a chart based on available data, with the top curve showing the total amount of equipment sold by Apple since the second quarter of 2007, as shown by Apple’s cumulative total equipment sales as of the fourth quarter of 2017 The amount has reached 2.05 billion units. At the same time, Horace fits it to logic functions based on the number of active devices that have been disclosed at several time points, trying to plot the S-curve below to represent the amount of active devices. As for the origin of this curve, I asked Dr. Milkshake, a Ph.D. in […]
World War II ended in the atomic bomb, World War I ended in the flu virus. Between 1918 and 1920, at the end of the First World War and two years after the war, a pandemic called “Spanish flu” swept across the Americas, Europe, Asia and even Eskimos, capturing The lives of 50 to 100 million people in the world reached 5% of the world population at that time. The number of people it knocked down far exceeded the number of war casualties. Even more mysterious and frightening is that the disease likes to attack young people, and in a few short days, those strong bodies will fall painfully. Later, some researchers think that the flu may bring war on the population Reducing one of the reasons for the early end of World War I. American hospital during the pandemic Just as its arrival is unknown, its disappearance is not due to the valor of human beings. The flu in Spain is a “plague” that has been said by many people in history. From time to time people are reminded of the catastrophic consequences of the plague, and thinking is not without merit. As the famous American journalist “The Great Influenza: Epic of the Deadliest Plague in History” published by the American historian John M. Barry in 2004 said: The 1918 pandemic was not a simple one about destruction, death and despair Is not just a story of how one society is struggling with the disasters that nature imposes on human society. It is also a story about science and exploration, a story about how people should change their way of thinking, one about how people should think calmly and then make a bold choice and act in an environment of total disarray rather than unnecessarily long hours Argue the story. The end of December 2017, high-intensity seasonal flu broke out throughout the country. In the 52nd week, the number of flu cases in Beijing increased by 81.44% within one week and the number of flu cases in the country exceeded 120,000. In Beijing, Shanghai, Zhejiang and Tianjin, emergency departments of major hospitals in China were full, and the number of people infected with 0-4 and 25-59 infections increased dramatically. In the first week of 2018, 9,000 flu cases were reported in Beijing, 19 times more than last year. In the United States, the worst flu in a decade also claimed the lives of 63 children in February, with 4.5 million people in the United Kingdom reporting the symptoms in January. In 2018, it became the worst winter in the world since the outbreak of the 1968 influenza in Hong Kong. Vaccination failure, pediatric halt, out-of-stock “cure”, the school became a flu-hit areas, a series of epidemics and forewarning, isolation, emergency alert … … 100 years later, in the face of a sudden epidemic, human There seems to be no difference between panic and helplessness. There is no reason why as the spring of 2018 approached, the number of cases of influenza that had entered an absolute peak began to decline and returned to its conventional level by the end of February. The flu virus, like every eruption in the past 100 years, goes away again. At this moment, we have reviewed the pandemic that we had 100 years ago. […]
Smart watches after a few years before the market peak, so far now fell to the bottom, it is better to say that the market has returned to the rational stage, which is the stage the industry must go through. According to a recent IDC survey, Apple Watch shipped 8 million units in the fourth quarter of 2017 as the highest-selling smartwatch for the period and year. In 2017, the data throughout the year, Apple Watch shipments in 2017 is as high as 17.7 million. However, after all, “a flower alone is not a spring,” Apple Watch’s large sales does not mean that the entire smart watch market is hot, the smart watch market as a whole has also been declining. In addition to the Apple Watch, sales of other smart watch makers, including Samsung, Garmin, Fossil and others, are just 15.6 million. So why smart watch manufacturers began to decline? Why Apple Watch survived? Die-hard powder and brand effect blessing, Apple Watch “shelf life” to be extended In recent years, under the trend of this wave, smart watch manufacturers have mushroomed, and in the early days of smart watches, it was even predicted to be the next generation of smart phones. However, the good news is not long, smart watches soon began a wide range of “ebb tide,” as other smart hardware in general, did not reach the user’s expectations, and the user’s fresh feeling is bound to have a shelf life, time is over, It is winter, and this is mainly due to the following two reasons: First, the tasteless, not just needed. Many users have this feeling, spirited to buy smart watches, adjust all the settings, push, but in the end, it is reduced to a full charge of the “traditional watch.” The so-called smart and not more practical, nor imagined so fun. And Chinese consumers’ family environment, living habits and smart watches formed a strong contrast, the scene elements are not sufficient, at least for the moment it is not just needed. At present, the function of smart watch roughly includes timing, information reminder, health monitoring, weather push and news subscription push. The replaceability of these functions is very strong. And now the public free wifi did not materialize, most of the functions of the smart watch will not be available once the smart watch is disconnected from the Internet. , But also for the general public, the acceptance of intelligent hardware is not high, however, too many players chased under the outlet can only be reduced to bubbles in the end. Second, the connection property is weak. All-Internet era, intelligent hardware manufacturers outline a smart blueprint for life. In fact, many users do not have too many smart appliances or other devices to connect to at home. Only when there are enough smart devices in the home will all sense of experience of all things come true. Even if there are enough smart appliances, different brands can achieve the interconnection between the current is still a problem to be solved. As a result, it is doomed smart watch has obvious “shelf life”, once the shelf life is over, to meet the smart watch can only be the first year of winter like VR. So why is Apple Watch survived? In my opinion, this should benefit […]
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.
March 6, 2018, the United States Qualcomm shareholders meeting, is known as the history of the largest technology mergers and acquisitions Casey acquisition of Qualcomm case of a positive battle. However, only one day before the holding of Qualcomm shareholders ‘meeting, Qualcomm broke the probe on the morning of March 5 in the United States to accept the investigation by the U.S. Foreign Investment Commission (CFIUS). CFIUS therefore ordered Qualcomm to defer its shareholders’ Triggered the market uproar. Figure 丨 US Foreign Investment Commission (CFIUS)
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
According to Forbes magazine, Amazon reported fourth-quarter and full-year earnings for 2017 with net sales of $ 179.9 billion in 2017, a 31% increase from 2016’s $ 136 billion and net profit of $ 2.4 billion in 2016 Increase to 3 billion US dollars by 2017. The latest financial results also reflect the fact that as the company’s efforts in international markets, technology, content and marketing are driving up the growth in operating expenses is squeezing margins.
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.
According to the Wall Street Journal, Japan’s SoftBank, the world’s largest tech investor, has already invested $ 20 billion in global car-service companies, including Uber, a car-service giant. Now, however, these companies are competing with each other at least for part of their SoftBank investments.
According to Bloomberg News, Apple’s AirPods headset sales surprisingly popular. Now, the company is planning to enter the high-end headphone market, in order to achieve its ambitions in the audio field.
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 […]
In 2005, Apple founder Joe Bangzhu once encouraged his classmates at a famous speech at Stanford: “time is limited.” However, Joe may help the Lord will not think that after a decade, this sentence was Stanford classmates “live and learn to use” to “boycott” Apple’s products – they want to addicted to Apple’s mobile phone, iPad grab the time Come back and ask Apple to develop a “core mode of mode” that can only make calls, send and receive text messages, and take pictures … Stanford University students protest at the Apple store door According to “Stanford Daily” Stanford University student organizations “anti-electronic device addiction” campaign, Apple as the primary goal According to the Insider Web site, a few days ago, led by computer science students, Stanford students are currently organizing a campaign called “Anti-Electronic Device Addiction (SSAAD)” and held at an Apple Store in Silicon Valley just over the weekend Parade protest. And in the protest, they made a very creative request, hoping Apple to develop a “core functional model”, open the model, the phone can only make calls, send text messages and take pictures. Stanford University newspaper introduction, students believe Apple did not do enough to resist the growing mobile addiction. On the organization’s website, students explain in detail why they specifically target Apple devices as a primary goal to combat addiction. “The iPhone is the threshold for many teens to engage with social software that makes them addictive, so it’s the most powerful control valve that helps teens out of the addiction to playing mobiles,” the site wrote. “And Apple’s business model does not need to be built on ‘Addiction’, unlike many software, the more people use, the more they earn … Even then, they do not do enough to assume the role of reducing adolescence The responsibility of addiction. ” Students put forward more ways to avoid cell phone addiction, agreed by scientists In the meantime, these students also give users ways to avoid phone addiction – turn off software pop-up windows, or simply turn your phone into a gray screen mode to “minimize the amount of cell phone irritation your dopamine secretion “. And this approach, also by many scientists, “praise” – According to the “Daily Mail” reported that Google former design ethic Tristan Harris said he was also a cell phone addict before, but the color of the iPhone mobile phone change Into the gray screen to quit this habit. Turn the phone into a gray screen helps people quit cell phone addiction According to the “Daily Mail” He said that many software will use bright colors as the main color of their app, allowing users to create a “want to use” subconscious. This situation is not uncommon, he had done a similar experiment in his own office: the candies from the glass jar into the opaque jar, the staff to eat candy significantly reduced the behavior, which replaced the phone into a gray Screen is a reason.