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Blockchain forging
Publish: 2021-05-01 08:06:06
1. In many cases of blockchain commercial application, we can always see the word baas. Baas is the abbreviation of blockchain as a service, which is translated into "blockchain as a service" in Chinese. So what is blockchain as a service baas? With this question, we will follow Xiao Wang of Renren blockchain technology team to discuss it carefully
according to Xiao Wang, the concept of blockchain as a service (baas) is mainly proposed by Microsoft and IBM. To put it bluntly, it is actually a new type of cloud service, a cloud service combined with blockchain technology. For example, Microsoft's azure cloud computing platform and IBM's bluemix garage cloud platform all provide blockchain as a service baas
blockchain as a service (baas) is a space created by enterprises such as Microsoft and IBM from their own cloud service network to run a blockchain node. Compared with ordinary nodes and exchange nodes, the main purpose of baas nodes is to quickly establish the development environment they need, and provide a series of operation services based on blockchain, such as search query, transaction submission, data analysis, etc. these services can be centralized or decentralized to help developers verify their concepts and models faster. The service of baas node is reflected in: it is more instrumental and easy to create, deploy, run and monitor blockchain.
according to Xiao Wang, the concept of blockchain as a service (baas) is mainly proposed by Microsoft and IBM. To put it bluntly, it is actually a new type of cloud service, a cloud service combined with blockchain technology. For example, Microsoft's azure cloud computing platform and IBM's bluemix garage cloud platform all provide blockchain as a service baas
blockchain as a service (baas) is a space created by enterprises such as Microsoft and IBM from their own cloud service network to run a blockchain node. Compared with ordinary nodes and exchange nodes, the main purpose of baas nodes is to quickly establish the development environment they need, and provide a series of operation services based on blockchain, such as search query, transaction submission, data analysis, etc. these services can be centralized or decentralized to help developers verify their concepts and models faster. The service of baas node is reflected in: it is more instrumental and easy to create, deploy, run and monitor blockchain.
2. Learn and then know the deficiency, teach and then know the difficulty. Knowing the inadequacy and then being able to reflexive; Know the difficulties, and then be able to self-improvement
- Confucius (thinker and ecator in the spring and Autumn period) was quoted from the book of rites. Learning records
few but eager to learn, such as the sunrise of the sun; Strong and studious, like the light in the sun; Old and studious, as bright as a candle<
- Liu Xiang (Western Han Dynasty Confucian classics scholar, litterateur) quoted from Shuo yuan
he who sees a lot is erudite, he who hears a lot is wise, he who refuses to admonish is blocked, and he who specializes in himself is isolated<
- Huan Kuan quoted from on salt and iron. Zhiyi
if one's interest is not far away and his mind is absent-minded, he can't learn
- Zhang Zai (philosopher of the Northern Song Dynasty) was quoted from the Confucian classics. In the chapter of righteousness and reason,
the world is full of knowledge, and the human relationship is the article<
- Cao Xueqin (a writer of Qing Dynasty) quoted from Chapter 5 of a dream of Red Mansions
it's good to ask questions If you don't want to, just casually ask, you can get a correct answer, and it may not be greatly benefited. Therefore, the word "learning" is placed under "learning"<
- Xie Juezai (Modern revolutionist) quoted from the collection of no doubt
the effort of learning is the effort of chewing carefully and swallowing slowly. It's just like eating a meal. You have to chew it well to digest it. It's good for your health
- Tao Zhu is quoted from ideal. Sentiment. Spiritual life is a good way to study<
- Cai Shangsi (modern historian) quoted from youth digest, No.11, 1983
learning should grasp the basic knowledge: not aim too high, but ignore the basic things. Himalayas is a famous mountain in the world, because it is a peak built on the Himalayas and the vast plateau of Panji; If the Himalayas are built on the river sea plain, the peak of 8000 meters is difficult to exist, just like the water without a source is easy to dry up<
- Xu Teli (modern ecator and revolutionist) quoted from Xu Teli's ecation anthology
it's not difficult to learn a foreign language. Learning a foreign language is like making friends. The more friends you make, the more familiar you are. When you meet each other every day, the more intimate you are< Gao Shiqi quoted from the people's Liberation Army Daily on December 31, 1980. When he studied and studied, he should pay attention to two aspects: one is "malnutrition", without a certain foundation of literature and history, preparation of scientific theory, and collection of first-hand data. What he did was either sallow and thin, or abnormal development; The second is indigestion. For book knowledge, no matter the ancient or modern people or an authoritative theory, we should study it deeply, chew it too carefully, think independently, and avoid swallowing it all, following others' advice, drifting with the tide, careless and superficial<
- Ma Yinchu (modern scholar and ecator) quoted from Beijing Evening News on June 22, 1981
step by step! The road I have taken is a graal one<
- Hua Luogeng (a modern mathematician) quoted from Beijing Evening News on June 20, 1980
learned people and successful people at all times and in all over the world always pay great attention to accumulation. Knowledge is accumulated by machine, so is experience. We shouldn't be like a passing cloud to anything<
- Deng Tuo (Modern Journalist and scholar) quoted from "recalling Deng Tuo" on February 27, 1979. There are three words for hard work: one is called hard work, the other is called hard work. We must cheer up and work hard<
- Mao Zedong quoted from being a revolutionary promoter
the situation is constantly changing. If you want to adapt your thoughts to the new situation, you have to learn<
- Mao Zedong quoted from "speech at the national propaganda work conference of the Communist Party of China"
step up learning, grasp the center, rather fine than miscellaneous, rather specialized than more<
- Zhou Enlai (a modern revolutionist and politician) quoted from selected works of Zhou Enlai Volume I
nails have two advantages: one is "squeezing" strength, the other is "drilling" strength. In our study, we should also advocate this "nail" spirit and be good at squeezing and drilling<
-- Lei Feng (Contemporary excellent soldier and martyr) quoted from Lei Feng's Diary
- Confucius (thinker and ecator in the spring and Autumn period) was quoted from the book of rites. Learning records
few but eager to learn, such as the sunrise of the sun; Strong and studious, like the light in the sun; Old and studious, as bright as a candle<
- Liu Xiang (Western Han Dynasty Confucian classics scholar, litterateur) quoted from Shuo yuan
he who sees a lot is erudite, he who hears a lot is wise, he who refuses to admonish is blocked, and he who specializes in himself is isolated<
- Huan Kuan quoted from on salt and iron. Zhiyi
if one's interest is not far away and his mind is absent-minded, he can't learn
- Zhang Zai (philosopher of the Northern Song Dynasty) was quoted from the Confucian classics. In the chapter of righteousness and reason,
the world is full of knowledge, and the human relationship is the article<
- Cao Xueqin (a writer of Qing Dynasty) quoted from Chapter 5 of a dream of Red Mansions
it's good to ask questions If you don't want to, just casually ask, you can get a correct answer, and it may not be greatly benefited. Therefore, the word "learning" is placed under "learning"<
- Xie Juezai (Modern revolutionist) quoted from the collection of no doubt
the effort of learning is the effort of chewing carefully and swallowing slowly. It's just like eating a meal. You have to chew it well to digest it. It's good for your health
- Tao Zhu is quoted from ideal. Sentiment. Spiritual life is a good way to study<
- Cai Shangsi (modern historian) quoted from youth digest, No.11, 1983
learning should grasp the basic knowledge: not aim too high, but ignore the basic things. Himalayas is a famous mountain in the world, because it is a peak built on the Himalayas and the vast plateau of Panji; If the Himalayas are built on the river sea plain, the peak of 8000 meters is difficult to exist, just like the water without a source is easy to dry up<
- Xu Teli (modern ecator and revolutionist) quoted from Xu Teli's ecation anthology
it's not difficult to learn a foreign language. Learning a foreign language is like making friends. The more friends you make, the more familiar you are. When you meet each other every day, the more intimate you are< Gao Shiqi quoted from the people's Liberation Army Daily on December 31, 1980. When he studied and studied, he should pay attention to two aspects: one is "malnutrition", without a certain foundation of literature and history, preparation of scientific theory, and collection of first-hand data. What he did was either sallow and thin, or abnormal development; The second is indigestion. For book knowledge, no matter the ancient or modern people or an authoritative theory, we should study it deeply, chew it too carefully, think independently, and avoid swallowing it all, following others' advice, drifting with the tide, careless and superficial<
- Ma Yinchu (modern scholar and ecator) quoted from Beijing Evening News on June 22, 1981
step by step! The road I have taken is a graal one<
- Hua Luogeng (a modern mathematician) quoted from Beijing Evening News on June 20, 1980
learned people and successful people at all times and in all over the world always pay great attention to accumulation. Knowledge is accumulated by machine, so is experience. We shouldn't be like a passing cloud to anything<
- Deng Tuo (Modern Journalist and scholar) quoted from "recalling Deng Tuo" on February 27, 1979. There are three words for hard work: one is called hard work, the other is called hard work. We must cheer up and work hard<
- Mao Zedong quoted from being a revolutionary promoter
the situation is constantly changing. If you want to adapt your thoughts to the new situation, you have to learn<
- Mao Zedong quoted from "speech at the national propaganda work conference of the Communist Party of China"
step up learning, grasp the center, rather fine than miscellaneous, rather specialized than more<
- Zhou Enlai (a modern revolutionist and politician) quoted from selected works of Zhou Enlai Volume I
nails have two advantages: one is "squeezing" strength, the other is "drilling" strength. In our study, we should also advocate this "nail" spirit and be good at squeezing and drilling<
-- Lei Feng (Contemporary excellent soldier and martyr) quoted from Lei Feng's Diary
3. First of all, what is Ethereum? Ethereum is a programming language and a platform. The Ethereum that investors / speculators focus on is actually Ethereum, which is a kind of digital token derived from Ethereum - Ethereum.
whether Ethereum has investment prospects or not, we only need to see its value, from tens of yuan to hundreds of yuan, Not to mention the future bubble or not, the space for appreciation at this stage is worth our attention.
Ethereum trading platform, at present, I recommend btctrade platform (bitcoin trading network), which is a relatively reliable trading platform in China! Ethereum was launched in 2016, and the rise of currency price is amazing!
whether Ethereum has investment prospects or not, we only need to see its value, from tens of yuan to hundreds of yuan, Not to mention the future bubble or not, the space for appreciation at this stage is worth our attention.
Ethereum trading platform, at present, I recommend btctrade platform (bitcoin trading network), which is a relatively reliable trading platform in China! Ethereum was launched in 2016, and the rise of currency price is amazing!
4. Madame Curie is a great physicist. She was born in Poland and her real name is Mary. Because she married Pierre Curie, a young French scholar, she was later known as Madame Curie. Together with her husband, she discovered and confirmed the existence of radium. Now we want to tell you how the Curies discovered radium< In 1898, French physicist Antoine Henri Becquerel discovered that uranium bearing minerals can emit a mysterious ray, but he failed to reveal the mystery of this ray. Mary and her husband, Pierre Curie, worked together on the radiation. Under extremely difficult conditions, they separated and analyzed pitchblende, and finally found two new elements in July and December 1898
in memory of her motherland Poland, she named one element polonium and the other radium, which means "radioactive substance". In order to prepare pure radium compound, Marie cui7e (1867-1934) spent four years to extract 10 mg radium chloride from tons of pitchblende slag, and the relative atomic mass of radium was 225. This simple figure embodies the painstaking efforts and sweat of the Curies< In June 1903, Madame Curie received her doctor's degree in physics from the University of Paris with her doctoral dissertation in the study of radioactive substances. In November of the same year, the Curies were awarded the David gold medal by the Royal Society. In December, they won the 1903 Nobel Prize in physics with becoller< In 1906, Pierre Curie died in a car accident. This heavy blow did not make her give up her persistent pursuit. She enred her grief and redoubled her efforts to complete their beloved scientific cause. She continued her husband's lecture at the University of Paris and became the first female professor of the University. In 1910, her famous book on radioactivity was published. With Mou, she worked with others to analyze pure metal radium and determine its properties. She also measured the half lives of oxygen and other elements and published a series of important works on radioactivity. In view of the above achievements, she won the Nobel Prize in chemistry in 1911 and became the first great scientist to win the Nobel Prize twice in history<
the founder of radiation science, who has experienced the joys and sorrows of science, died of malignant anemia (leukemia) on July 4, 1934 e to years of hard work. She has dedicated her glorious life to the scientific cause of mankind< Before the Curie couple discovered radium, it was just known that there is a rare metal called uranium, which can emit penetrating rays, that is, X-rays. When Madame Curie knew the news, she immediately thought that there might be other substances with similar radioactivity as uranium. In order to confirm this conjecture, they began to do experiments
Mr. and Mrs. Curie have a small laboratory transformed from a storage room. This laboratory has no floor. It is cold in winter and hot in summer. There is only a stove with a broken chimney, four benches with uneven length and a worn-out blackboard in the room. They started their hard work in this laboratory
Mary observed a kind of pitchblende with instruments, and she thought that there was another element with stronger radioactivity in it, which was a new element that had not been found yet. She and her husband decided to find this element. They first called this new element "radium". To prove the existence of radium, they had to extract it from pitchblende. In order to save money, they didn't buy expensive pitchblende, they just bought a lot of pitchblende resie that has been refined uranium. There is a special refining equipment in the yard, but it has to withstand the hot sun in summer and freeze stiff in winter. In case of heavy rain, the two people have to move the machine to the house in a hurry
Mary and her husband devoted themselves to their work. Every day, they wear work clothes covered with lime and soil, stained with various liquids, watch the boiling minerals in the pot, and constantly stir them with iron bars in their hands. Soot and poisonous gas irritated their eyes and throat, making them very uncomfortable. This kind of work is arous and monotonous. In this way, it continues for one, two or three years, but radium still does not appear< However, Madame Curie said, "no, I will never give up. I believe we will succeed." They imagine that radium will have a beautiful color. When they are tired of work, they will sit together and talk about this new element radium, which makes them excited and excited
finally one day, radium, which Mary and Pierre thought about day after day, appeared
that night, when they got home, they couldn't sleep. Madame Curie felt a kind of uneasiness in her heart, so she stood up, took her husband and said, "go, shall we go there?"
"there" is their laboratory. They rushed to the laboratory in the moonlight, as if they heard radium calling them gently
the couple walked down the street, past factories, open spaces, past a residential area, and finally walked into their small laboratory< After the door was opened, Mary said softly, "honey, don't light the light! Don't we want radium to have a beautiful color? " Pierre nodded. "Well, let's see."
the room is dark. In the dark, there is a kind of glowing blue light. It jumps in the dark, like a firefly at night. Mary looked at the beautiful blue light and clenched Pierre's hand with excitement. She knew that they had succeeded. This beautiful light was the light from the mysterious element radium
after four years, the Curies overcame difficulties and confirmed the existence of radium. Many scientists didn't believe in radium, but now they have to admit it. They expressed their admiration for the Curies.
in memory of her motherland Poland, she named one element polonium and the other radium, which means "radioactive substance". In order to prepare pure radium compound, Marie cui7e (1867-1934) spent four years to extract 10 mg radium chloride from tons of pitchblende slag, and the relative atomic mass of radium was 225. This simple figure embodies the painstaking efforts and sweat of the Curies< In June 1903, Madame Curie received her doctor's degree in physics from the University of Paris with her doctoral dissertation in the study of radioactive substances. In November of the same year, the Curies were awarded the David gold medal by the Royal Society. In December, they won the 1903 Nobel Prize in physics with becoller< In 1906, Pierre Curie died in a car accident. This heavy blow did not make her give up her persistent pursuit. She enred her grief and redoubled her efforts to complete their beloved scientific cause. She continued her husband's lecture at the University of Paris and became the first female professor of the University. In 1910, her famous book on radioactivity was published. With Mou, she worked with others to analyze pure metal radium and determine its properties. She also measured the half lives of oxygen and other elements and published a series of important works on radioactivity. In view of the above achievements, she won the Nobel Prize in chemistry in 1911 and became the first great scientist to win the Nobel Prize twice in history<
the founder of radiation science, who has experienced the joys and sorrows of science, died of malignant anemia (leukemia) on July 4, 1934 e to years of hard work. She has dedicated her glorious life to the scientific cause of mankind< Before the Curie couple discovered radium, it was just known that there is a rare metal called uranium, which can emit penetrating rays, that is, X-rays. When Madame Curie knew the news, she immediately thought that there might be other substances with similar radioactivity as uranium. In order to confirm this conjecture, they began to do experiments
Mr. and Mrs. Curie have a small laboratory transformed from a storage room. This laboratory has no floor. It is cold in winter and hot in summer. There is only a stove with a broken chimney, four benches with uneven length and a worn-out blackboard in the room. They started their hard work in this laboratory
Mary observed a kind of pitchblende with instruments, and she thought that there was another element with stronger radioactivity in it, which was a new element that had not been found yet. She and her husband decided to find this element. They first called this new element "radium". To prove the existence of radium, they had to extract it from pitchblende. In order to save money, they didn't buy expensive pitchblende, they just bought a lot of pitchblende resie that has been refined uranium. There is a special refining equipment in the yard, but it has to withstand the hot sun in summer and freeze stiff in winter. In case of heavy rain, the two people have to move the machine to the house in a hurry
Mary and her husband devoted themselves to their work. Every day, they wear work clothes covered with lime and soil, stained with various liquids, watch the boiling minerals in the pot, and constantly stir them with iron bars in their hands. Soot and poisonous gas irritated their eyes and throat, making them very uncomfortable. This kind of work is arous and monotonous. In this way, it continues for one, two or three years, but radium still does not appear< However, Madame Curie said, "no, I will never give up. I believe we will succeed." They imagine that radium will have a beautiful color. When they are tired of work, they will sit together and talk about this new element radium, which makes them excited and excited
finally one day, radium, which Mary and Pierre thought about day after day, appeared
that night, when they got home, they couldn't sleep. Madame Curie felt a kind of uneasiness in her heart, so she stood up, took her husband and said, "go, shall we go there?"
"there" is their laboratory. They rushed to the laboratory in the moonlight, as if they heard radium calling them gently
the couple walked down the street, past factories, open spaces, past a residential area, and finally walked into their small laboratory< After the door was opened, Mary said softly, "honey, don't light the light! Don't we want radium to have a beautiful color? " Pierre nodded. "Well, let's see."
the room is dark. In the dark, there is a kind of glowing blue light. It jumps in the dark, like a firefly at night. Mary looked at the beautiful blue light and clenched Pierre's hand with excitement. She knew that they had succeeded. This beautiful light was the light from the mysterious element radium
after four years, the Curies overcame difficulties and confirmed the existence of radium. Many scientists didn't believe in radium, but now they have to admit it. They expressed their admiration for the Curies.
5.
Today, geometric car released the rendering of its new car geometric C, and put forward a new concept -- the new favorite of pure electric
Therefore, the new geometric platform means that geometric C may have a new electronic and electrical architecture, which means a lower level architecture with higher integration, higher computing power and higher openness, providing a lower level guarantee for subsequent OTA, joint development and "feeding"■ driverless and 5g
according to the official news, geometric C will apply Geely's latest technological achievements in the field of driverless and carry Geely's self-developed "intelligent tracking driverless system". The system is the first domestic automatic driving technology that combines the car end, cloud end and field end, and will be equipped with 5g in the future to realize full road condition, full scene and seamless high-speed connection. It can turn on 100% independent parking function in outdoor and indoor multi scene. In the future, driverless scenes such as unmanned parking, unattended, and unattended express delivery will be constructed in stages to continuously evolve
well... It looks very powerful. If it can be realized, it can be called the comprehensive commercial use of 5g + Internet of things
based on my current knowledge and practical experience, I really can't imagine what "all road conditions, all scenes, seamless high-speed connection of automatic driving" and "100% autonomous parking" would look like. Because even Tesla, which is currently the leading company, can only drive automatically under specific road conditions (sometimes not very smart); The success rate of automatic parking is worrying. Every time I test this function, I'm more nervous than my subject 2
therefore, for geometry C's unmanned driving, I really hope it can make a big splash and hit Tesla in the face
Of course, it's meaningless to talk on paper. It's mules or horses. Let's take a walk! When we get the test drive, we will bring you detailed experience and evaluation in time. Please look forward to it To sum up, geometric C is an electric vehicle with good appearance, smart mind and enough enrance; In addition, in terms of driverless and intelligent Internet, it seems to want to bring us unprecedented experience. I very much hope that it can become a pioneer or leader and a Chinese brand leading the world trendthis article comes from the author of car home, which does not represent the standpoint of car home
6. I have also heard the teacher of Yingfu College of Finance and economics give lectures. The fixed issue limit of bitcoin is 21 million, and no additional issue will be made
in the first year, dog coin issued 100 billion pieces, and there was no upper limit. Through the continuous inflation of the market, from the perspective of the overall currency price expectation, dog coin is not as good as bitcoin
in addition, dog coins are highly centralized, with the top ten owners accounting for 41.35% of all the tokens in circulation, which can easily lead to price manipulation
the second is the loose community governance model, which contains a huge crisis behind the rise. It is also hard to predict the extent to which the dog bubble will expand or when the bubble will burst.
in the first year, dog coin issued 100 billion pieces, and there was no upper limit. Through the continuous inflation of the market, from the perspective of the overall currency price expectation, dog coin is not as good as bitcoin
in addition, dog coins are highly centralized, with the top ten owners accounting for 41.35% of all the tokens in circulation, which can easily lead to price manipulation
the second is the loose community governance model, which contains a huge crisis behind the rise. It is also hard to predict the extent to which the dog bubble will expand or when the bubble will burst.
7. Yes, the central network is authentic. Investment is sure to make money.
8. There is such a thing. For example, Wen ecology includes brand incubation, ecation and learning, retail and so on.
9. First of all, blockchain is a new field of digital economy, which can solve the bottleneck of traditional economy, such as the restrictions between various elements, weak processing capacity, slow response, only focusing on indivials, etc. with the digitalization of economy, new digital financial infrastructure is needed, and the emergence of blockchain just makes up for many shortcomings of traditional finance. Right!
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