Ethereum Tauren
Publish: 2021-05-04 11:22:06
1. If you are interested in blockchain technology, you can learn the knowledge of cryptography at the beginning, and learn how to strengthen contracts other than trust through numbers. This is the most basic principle of blockchain. Then you can look at the programming books, understand the basic code, and do simple programming. After that, you can download some common blockchains, Study its code arrangement, see how it adds contracts, and make simple modifications to build its own smart contracts. Of course, if you are only affected by the recent price and hype and decide to join the instry, I suggest you learn more about the Bulls who hype it, listen to their opinions, and learn how others reap!
2. Go language. It is mainly used as a system programming language in some web servers. It's a programming language developed by Google. To some extent, Google has a monopoly. You can't just add other language elements to the language.
3. You need to understand that the ports at both ends of the line are under negotiation.
there is nothing to negotiate between 10m 100m 1000m Ethernet.
besides, the ports are set to 10m 100m 1000m. What else can we negotiate?
only the two ports set to auto are connected, The specific method is to add a negotiation page after the middle or ordered set characters of FLP, and 16 bits are used when it is not expanded to describe the capabilities supported by this port
there is nothing to negotiate between 10m 100m 1000m Ethernet.
besides, the ports are set to 10m 100m 1000m. What else can we negotiate?
only the two ports set to auto are connected, The specific method is to add a negotiation page after the middle or ordered set characters of FLP, and 16 bits are used when it is not expanded to describe the capabilities supported by this port
4.
Someone once asked me such a question: which character in history do you think you regret? If he does not die, it is possible to change the historical pattern at that time
the answer I gave him was: the Western Jin Dynasty ǐ n] The prince of Huai ù]
{rrrrrrr}
"outlaws of the marsh" has such a plot, Taiwei Gao Qiu falsely accuses Lin Chong of entering the white tiger Festival Hall with a knife, taking the opportunity to confiscate Lin Chong and send him to Cangzhou although Jia Nanfeng hasn't seen the outlaws of the marsh, she also designed a similar trap: she pretended that the Emperor (SIMA Zhong) was uncomfortable and cheated Sima Li into the palace to say hello. After Sima Hui arrived, empress Jia did not arrange for their father and son to meet. Instead, she arranged Sima Hui in another room and sent her maidservant to force him to eat the prepared jujube. Sima Hui ate a lot of jujube and collapsed in bed
5. http://drivers.mydrivers.com/drivers/213-85227-Realtek-ALC861-ALC880-ALC882-ALC883-ALC885-ALC887-ALC888-ALC889-ALC260
it's better to start with the driver. In general, if the sound card driver is normal and there is no sound in the ghost system, it should be caused by the hardware judgment error. First, uninstall the old sound card driver and then install a new one
it's better to start with the driver. In general, if the sound card driver is normal and there is no sound in the ghost system, it should be caused by the hardware judgment error. First, uninstall the old sound card driver and then install a new one
6. Power management energy saving function problem, power options - Advanced Settings - PCI Express - connection state power management, the following two options are all turned off, I have been brushing this log for a long time
7. My computer will always restart automatically, or shut down, or blue screen crash (my system win7 64 bit)
8. I'm a very curious person, so I'm particularly interested in what's going on in time and space and why the world should be like this rather than like that
I'm also a person who likes reading posts on the Internet. I find that when we discuss the micro and macro material world, most of us still stay more than 80 years ago, or even 100 years ago. So I really want to compare my knowledge with you in this aspect. Unfortunately, I am not good at mathematics. I have never dared to say anything because I'm afraid that I'll get a brick if I make a mistake. Now I can't hold it, just get it. I still want to say that there are all kinds of strange things in the Internet world. Surely some people know what I don't know. Isn't that what I ask for
back to business. As for the theory of relativity, there is a very frightening legend popular in China. It can be regarded as completely putting this theory into the sky, and many people stay away from it. The basic version is like this: Einstein, the great master, made a speech on relativity among a group of people with high intelligence, but few people understood it. As a result, people who understand the theory of relativity become the symbol of genius
in fact, relativity is far less complicated. If you understand that it's a genius, isn't a guy like me a genius? I say is, broad netizen also does not agree to drop, brick is waiting
at least before the theory of relativity, all the people on earth thought that as long as the quality of the clock is good enough, we can completely and accurately measure the time difference between two events, that is to say, no matter how we measure it, the time interval between events is the same, no matter where or who measures it, the time interval is always the same. Perhaps, in the eyes of everyone, this is taken for granted
if we only use time to measure whether we are late for work and whether the plane is late, there is no problem with this concept of time. The problem is that when the speed is as fast as light, this idea is questionable. Maxwell demonstrated that light runs at a fixed speed. But we know a basic common sense now: speed is relative, just as the speed of a train is different when a car is running to watch a train or when it is on the side of the road. Since light runs at a fixed speed, we have to make it clear. What does light run at the speed of light
at that time, some imaginative people (imagination is very important) thought that there was a kind of "Ether" filled the whole space, including the vacuum space. Even a celestial body as big as the earth and sun can't interfere with the stability of the ether. Since light is a kind of wave, and almost all the waves we knew at that time propagate in a certain medium, then the theory of "Ether" just meets the medium needed for light and ray propagation. Well, it was almost decided at that time: light is spreading in the ether!! The speed of light is relative to ether< But in 1887, two American experiments thoroughly, completely and painfully exposed the lie of "Ether"
it is obvious that if ether exists, then the bicycle can ride forward with a rear facing flashlight behind its buttocks. When the flashlight is turned on, doesn't it run faster than the light? That is to say, we will find that the speed of light moving in different directions is different. Because people also move in the ether, light also spreads in the ether, since the speed of light relative to the ether is certain, then the speed of light relative to us is obviously different! According to this inference, the speed of light in the direction of the earth moving through the etheric medium is different from that in the direction perpendicular to the earth
at that time, American scientist Alpert Michelson and one of his associates did an experiment, which greatly surprised them - they also believed in ether, but the experiment proved that the speed of light moving in the same direction as the earth was the same as that of light moving perpendicular to the earth! Exactly the same
at that time, people still did not give up the "Ether"
but the theory of the best man in the world appeared, and this man is Einstein. In 1905, the great Einstein pointed out in his article: if we abandon the concept of absolute time, ether is a burden. Existence is ridiculous
a very useful way of thinking must be put forward here: the principle of razor. This thinking tool and guiding ideology are very powerful; We have helped Newton, Galileo, Einstein, and detectives. We should also study hard: if it is unnecessary, don't add substance
What do you mean? That is to say, if an explanation of a thing makes it more complicated by some inference, the inference will be abandoned. In other words, if you don't have to be wordy, don't be wordy. Keep it simple: the simpler things are, the better
Einstein's idea of abandoning absolute time is the core of the theory of relativity
the basic theoretical formula of this theory is well known: e = m times the square of C. That is, energy equals mass times the square of the speed of light
in other words, there is a relationship between energy and mass. This formula shows that the mass of a mass object increases in motion. In other words, accelerating a mass object will increase the mass of the object
the problem is that the speed of the object is large enough to make sense. When the speed of an object reaches 30000 kilometers per second, its mass increases by less than 1 / 200. And this formula shows that when the speed is close to the speed of light, the mass is infinite
here Einstein set a limit that no object with mass can exceed the speed of light< This theory leads to a revolutionary inference:
in Newton's theory, which is easy to understand, because time is constant, the starting and ending points of light are two different observers, and how much time they spend on light is unified. However, space is relative. If we agree on the cost of time, then we will find that we have different values on how far away we are Please note that consider assuming that the earth is moving in ether!) As a result, the speed of light measured by different observers is different
but in relativity. All the observers think that the speed of light is fixed (which is consistent with the experimental results). However, the distance of light can not be unified. Therefore, it is obvious that it is uncertain how long it takes light to complete the distance Remember, think backwards! Because space is relative, we should be clear about this, just as in a fast airplane, you can't feel flight, because Newton's principle tells us that motion is relative. If the speed is constant, the time is uncertain. Because the speed is equal to the distance of light divided by time.)
so, my God! Relativity makes it a mistake to think that time is common sense! yeah! Great
therefore, compared with each of us, we have our own clock to observe a thing. They all have their own time standards. And these clocks, they don't go the same way! We are the masters of our own time! Although every "clock" on our earth is almost the same
later, a scientist built a time tower. Accurate discovery, the top and bottom of the tower time to go there is a subtle difference
later, the spaceship went into the sky. We are excited to prove that the time of astronauts is slower than that of people on earth.
I'm also a person who likes reading posts on the Internet. I find that when we discuss the micro and macro material world, most of us still stay more than 80 years ago, or even 100 years ago. So I really want to compare my knowledge with you in this aspect. Unfortunately, I am not good at mathematics. I have never dared to say anything because I'm afraid that I'll get a brick if I make a mistake. Now I can't hold it, just get it. I still want to say that there are all kinds of strange things in the Internet world. Surely some people know what I don't know. Isn't that what I ask for
back to business. As for the theory of relativity, there is a very frightening legend popular in China. It can be regarded as completely putting this theory into the sky, and many people stay away from it. The basic version is like this: Einstein, the great master, made a speech on relativity among a group of people with high intelligence, but few people understood it. As a result, people who understand the theory of relativity become the symbol of genius
in fact, relativity is far less complicated. If you understand that it's a genius, isn't a guy like me a genius? I say is, broad netizen also does not agree to drop, brick is waiting
at least before the theory of relativity, all the people on earth thought that as long as the quality of the clock is good enough, we can completely and accurately measure the time difference between two events, that is to say, no matter how we measure it, the time interval between events is the same, no matter where or who measures it, the time interval is always the same. Perhaps, in the eyes of everyone, this is taken for granted
if we only use time to measure whether we are late for work and whether the plane is late, there is no problem with this concept of time. The problem is that when the speed is as fast as light, this idea is questionable. Maxwell demonstrated that light runs at a fixed speed. But we know a basic common sense now: speed is relative, just as the speed of a train is different when a car is running to watch a train or when it is on the side of the road. Since light runs at a fixed speed, we have to make it clear. What does light run at the speed of light
at that time, some imaginative people (imagination is very important) thought that there was a kind of "Ether" filled the whole space, including the vacuum space. Even a celestial body as big as the earth and sun can't interfere with the stability of the ether. Since light is a kind of wave, and almost all the waves we knew at that time propagate in a certain medium, then the theory of "Ether" just meets the medium needed for light and ray propagation. Well, it was almost decided at that time: light is spreading in the ether!! The speed of light is relative to ether< But in 1887, two American experiments thoroughly, completely and painfully exposed the lie of "Ether"
it is obvious that if ether exists, then the bicycle can ride forward with a rear facing flashlight behind its buttocks. When the flashlight is turned on, doesn't it run faster than the light? That is to say, we will find that the speed of light moving in different directions is different. Because people also move in the ether, light also spreads in the ether, since the speed of light relative to the ether is certain, then the speed of light relative to us is obviously different! According to this inference, the speed of light in the direction of the earth moving through the etheric medium is different from that in the direction perpendicular to the earth
at that time, American scientist Alpert Michelson and one of his associates did an experiment, which greatly surprised them - they also believed in ether, but the experiment proved that the speed of light moving in the same direction as the earth was the same as that of light moving perpendicular to the earth! Exactly the same
at that time, people still did not give up the "Ether"
but the theory of the best man in the world appeared, and this man is Einstein. In 1905, the great Einstein pointed out in his article: if we abandon the concept of absolute time, ether is a burden. Existence is ridiculous
a very useful way of thinking must be put forward here: the principle of razor. This thinking tool and guiding ideology are very powerful; We have helped Newton, Galileo, Einstein, and detectives. We should also study hard: if it is unnecessary, don't add substance
What do you mean? That is to say, if an explanation of a thing makes it more complicated by some inference, the inference will be abandoned. In other words, if you don't have to be wordy, don't be wordy. Keep it simple: the simpler things are, the better
Einstein's idea of abandoning absolute time is the core of the theory of relativity
the basic theoretical formula of this theory is well known: e = m times the square of C. That is, energy equals mass times the square of the speed of light
in other words, there is a relationship between energy and mass. This formula shows that the mass of a mass object increases in motion. In other words, accelerating a mass object will increase the mass of the object
the problem is that the speed of the object is large enough to make sense. When the speed of an object reaches 30000 kilometers per second, its mass increases by less than 1 / 200. And this formula shows that when the speed is close to the speed of light, the mass is infinite
here Einstein set a limit that no object with mass can exceed the speed of light< This theory leads to a revolutionary inference:
in Newton's theory, which is easy to understand, because time is constant, the starting and ending points of light are two different observers, and how much time they spend on light is unified. However, space is relative. If we agree on the cost of time, then we will find that we have different values on how far away we are Please note that consider assuming that the earth is moving in ether!) As a result, the speed of light measured by different observers is different
but in relativity. All the observers think that the speed of light is fixed (which is consistent with the experimental results). However, the distance of light can not be unified. Therefore, it is obvious that it is uncertain how long it takes light to complete the distance Remember, think backwards! Because space is relative, we should be clear about this, just as in a fast airplane, you can't feel flight, because Newton's principle tells us that motion is relative. If the speed is constant, the time is uncertain. Because the speed is equal to the distance of light divided by time.)
so, my God! Relativity makes it a mistake to think that time is common sense! yeah! Great
therefore, compared with each of us, we have our own clock to observe a thing. They all have their own time standards. And these clocks, they don't go the same way! We are the masters of our own time! Although every "clock" on our earth is almost the same
later, a scientist built a time tower. Accurate discovery, the top and bottom of the tower time to go there is a subtle difference
later, the spaceship went into the sky. We are excited to prove that the time of astronauts is slower than that of people on earth.
9. 5th floor, administrative service hall, Qiyi Middle Road, Beishi District, Baoding City
10. It should be a memory problem. Try changing the memory
Hot content