Did BTC invest when it started mining

3.

Recently, the price of bitcoin continued to rise, reaching a maximum of US $41000. According to Mr. Liu, the manager of the mine, recently some customers have asked for additional orders, but the output of the mining machinery manufacturers is insufficient and they can't get a large number of mining machinery. Now they have to wait five months or more. Most of his customers have increased their positions in the middle of this year. At present, the prices of mainstream mining machines vary from 30000 to 60000, Mining takes about 12 months to recover the cost

therefore, if people really have mining ideas, they should not be dazzled by the impulse of the moment, and they should try to do it slowly. Today, the price of bitcoin continues to rise, largely because many mainstream investment institutions or investors begin to be interested in digital assets and begin to hoard bitcoin

bitcoin investment has great risks, the phenomenon of sharp rise and fall is not uncommon, and there are not a few people who have lost all their money. Therefore, it is not advisable to follow blindly and keep calm in investment

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extended data

bitcoin plummeted by more than 10%:

earlier on January 11, bitcoin once fell to $37000 / piece, the lowest to $35141, and the biggest drop in the day was more than 10%. According to the data of bitcoin home.com, the amount of burst positions in the past 24 hours reached US $1.165 billion (about RMB 7.530 billion), and a total of 115138 people burst positions within 24 hours

for the sudden drop, some netizens said: "what should come will come.". Cautious investors said that such a high position, I first clearance, short about

4. At the beginning, intervention was very simple, and there was no trading platform at that time. Bitcoin is basically played by geeks, gamers and cryptocurrency scholars. Bitcoin's popularity is not high, and its mining computing power is poor. The simplest way to get involved is to download a bitcoin client and use your ordinary computer to get bitcoin. Mining was a very simple thing at that time. In 2010, a programmer used 10000 bitcoins to buy a pizza. Now it sounds funny, but it's true. Later, bitcoin trading platforms appeared, such as Mentougou, where people can trade. With the increase of popularity and price of bitcoin, more and more people play bitcoin. Driven by the interests, people began to develop mining machines with faster mining speed. Later, there were video card mining and ASIC mining machines

now there are more ways to get involved in bitcoin. You can mine, buy and sell bitcoin, provide goods or services in exchange for bitcoin, and of course, dig futures. Bitcoin home has more information.

5. The most fundamental way of children's learning should be activity, which is the bridge between subject and object and the direct source of cognitive development. According to the psychological characteristics, letting students explore knowledge independently in the coordination of hands, mouth and brain can develop students' cognitive structure. This requires us to change the classroom teaching mode in teaching, implement open teaching, and let students study independently. I always encourage students to think freely, rationally, boldly and even fantastically in class. For example, when learning "the destruction of the Old Summer Palace", the multimedia courseware was used to create the situation, and the fragments of the movie "burning the Old Summer Palace" were shown to the students. Then they thought of gunpowder. They proposed: China was the first to invent gunpowder, why not make artillery and fireguns to deal with the British and French allied forces? In this way, the students' thinking suddenly goes beyond the books. Second, let the students "see" as much as possible, and cultivate the students' discovery ability. "See" is to let the students watch, observe, give enough time to observe, obtain "discovery" through "see", and actively learn knowledge on this basis. For example, when learning the scenery of Yuanmingyuan, Cai is used to show the scenery pictures of Yuanmingyuan. The students can observe and appreciate them heartily, and then according to their own observation and discovery, give the pictures a name with the same beauty as the pictures - title. Then compare the original name of the picture with the name of your own question to see who is good and why. For example, according to the architectural characteristics of "flower array", it is like a blooming lotus and is named "stone flower jade Pavilion". In this way, students explore and creatively learn knowledge on the basis of full "seeing". Third, let the students "draw" as much as possible to cultivate their thinking ability. Students can draw and describe the information they have obtained from different perspectives and levels of thinking by seeing, experiencing and imagining with their own eyes, and then express it with language, so that the students can better move their hands and brains in class, and overcome the problem of using only ears to listen, listening and thinking in class It is not enough to operate without small hands. In the class of painting style of the first grade, the word "painting" was fully reflected in the design. Both the teacher and the students expressed certain thinking results in the way of painting. The teacher used "simple strokes" to write on the blackboard the things in the wind mentioned in the book. In the class, the students were also designed to "draw" the "wind" on a beautiful landscape painting to see whose way they thought more, And tell us why we draw the wind in this way. In this way, the consciousness and interest of students' active exploration are aroused, and the ability of students' brain and hands-on is cultivated. In the process of exploring how to draw, students will understand that the wind can not be drawn directly, only through other things in the wind to express this point, which is much better than the effect of the teacher. Fourth, let the students "speak" as much as possible, exercise their eloquence, and express the rationality of their thinking through language, so that they can understand how the students think and how to achieve the rationality of their thinking. The teacher creates a free space for students to speak freely, and truly achieves a harmonious and democratic classroom teaching atmosphere, giving students a blue sky of independent exploration. For example, the students' oral expression ability, thinking ability and the ability to organize language quickly can be trained by means of "naming, speaking on stage, group speaking, question and answer type communication" and "adding, summarizing, modifying, correcting and synthesizing". Fifthly, let the students "do" as much as possible to cultivate their practical ability. The process of doing it by themselves actually includes the process of thinking and exploration. Here we should design and provide the time and necessary material conditions for the students to do it. For example, when reviewing idioms at the end of the term, we should change the way that the teacher found out the idioms in a book and let the students , read and remember them. Instead, we should trust the students and let the students read the text by themselves. We should also ask the students to compare and compare. Who can find all the idioms in a book. In this way, students fully reflect their autonomy and enthusiasm in the process of finding out for themselves. Sixthly, let the students accept the knowledge critically and creatively, show the thinking process, create a relaxed environment, require the students to adhere to the truth, follow the objective laws of things, dare to doubt the predecessors, not only books, not only on. For example, when learning the lesson "Zhan Tianyou", the students admired Zhan Tianyou, and at the same time, they also talked about their own design and ideas for his "herringbone railway design", "middle shaft sinking method", "relative shaft sinking method", and carried out reasonable imagination and scientific thinking. For another example, when studying snakes and crops, the students boldly said, "the reason why the crops can't get a good harvest is not only because they were drowned by the flood, but also because the sea water is salty, which destroys the soil and makes the soil unsuitable for the growth of crops. But after a few years, the rain from the sky diluted the soil that had been destroyed by salt water before, so the crops were harvested again, not only because of snakes. Students use their own knowledge and experience for reasonable analysis, dare to doubt, dare to accept knowledge creatively, and fully show the students' reasonable thinking process. 7. To teach students the "method" and "place" of "fishing", it is often said that "teaching people how to fish is beneficial for life". In this knowledge-based economy era with knowledge explosion, today's knowledge will not be enough tomorrow. We should not only teach students the learning method of "how to fish", but also tell students the place of "fishing", Tell students where to find, where to learn, where to find what they need, how to collect some information and where to get information, that is, tell students the ways and channels to collect information and obtain information. For example, through newspaper clippings, book excerpts, TV recordings, radio recordings, CDs, disks, online downloads, field surveys, their own life experience, special interviews and so on. How to sort out and deal with the collected materials to make them useful to you? If you know "there will be rain tomorrow" from "TV", how will you deal with this information? You'll take your umbrella tomorrow. What do you think if you read in the newspaper that a middle school student committed suicide by jumping off a building because of his poor exam results? What kind of inspiration will your psychology proce? If you are also a person with poor enrance and can't stand setbacks, how will you deal with this situation? Should I adjust my mind and treat the exam correctly? In this way, it can help students master the ways of collecting information, acquiring knowledge and processing information. As long as we change the concept of ecation, leave time, space and opportunity for students, let them think, see, speak, draw, do and doubt boldly, and teach them not only learning methods but also ways to acquire knowledge, we can cultivate students' ability and consciousness of independent inquiry.

6. Diamonds are better to dig, as long as you dig down about 16 squares vertically, you may find diamonds. But the gold ore seems to be distributed irregularly, and there are few diamonds, so we can only rely on luck

7. For those who don't know and have no experience in investment, I suggest you be cautious. After all, money is not easy to come by, and you should cherish it
what kind of bitcoin is is, in fact, a virtual and worthless thing. As for the Mining Fund, it's even more uncertain!

8. Answer: it's better not to participate! All illegal trading activities! Many people have been cheated!

9. It's the second one. According to the previous block information, root node information, real-time mining time, difficulty and random value, the random string is generated by twice hash256 algorithm calculation, and is allocated and recorded when the verification is passed.