Ethereum etc2020

1.

1. about the variability of blockchain

2. eth, if most people agree to modify the chain, that is, variability, then they can modify the blockchain records and contracts

3. etc, blockchain records and contracts can't be modified, that is, they can't be tampered with

4. here are the advantages and disadvantages of the two methods

   The advantage of

5. variability is that people can make timely changes to make the right decisions. Therefore, modifying the specification is more practical than finding loopholes

6. non modifiability means that no matter how smart people are at that time, it is impossible not to make mistakes. Therefore, when problems arise in this scheme, it is best to find and solve the loopholes through the existing legal framework

7. differences in development

8. eth, whether it is intentionally arranged or since its birth, the core decisions of blockchain are made by Ethereum foundation with the participation of the community and most of them are developed by it

9. etc, the decision-making of blockchain is mainly decided by the feedback of three loose, collaborative teams with community participation

10. in any case, anyone can put forward improvement suggestions for the two kinds of blockchains. This is the benefit of open source, and it is also very common. You will find that developers of the two chains communicate with each other through GitHub and reddit. I hope to improve the frequency of communication in order to achieve the common goal

11. about compatibility

12. at present, the two kinds of blockchains are compatible with each other. Contracts or applications written by eth can be applied on etc, and vice versa

13. eth, focusing on ewasm, is committed to providing a platform for more and more developers, while the issue of contract security is secondary, such as viper

14. etc focuses on making developers create more secure contracts, such as viper, iohk research, at the cost of consuming the number of potential developers

15. it's obvious that both chains can accept each other, regardless of whether their wishes are the same or not. My view is that the number of developers is not necessarily related to the quality of the proct

16. about the transaction speed

17. eth, the average is 25 seconds, which will be shortened after upgrading

18. etc, with an average time of 14 seconds, maintained at 10-14 seconds after upgrade, according to ecip-1010 and ecip-1036 protocols

19. about the block capacity

20. eth, with the daily trading volume of eth graally reaching 5 million, the block capacity is graally saturated. This situation is similar to the recent transaction cost of bitcoin. This problem can be solved by expanding the block capacity by increasing the default fuel limit

21. ETC­， At present, there is still a lot of room for block capacity. As more and more people accept etc, the block capacity will also increase, just like eth

22. about community

23. eth, mainly discuss on reddit

24. etc, mainly discuss on slack

25. about monetary policy

26. eth, the planned supply is growing steadily, resulting in an average inflation of 3% in eth blockchain in its life cycle

27. etc, before 2025, inflation will reach 3%, and then the total supply will reach 200 million etc, and then there will be deflation

    As for the regional distribution of trading volume, China accounts for 20%, South Korea 25% and the United States 25%
    In etc, China accounts for 50%, South Korea 25% and the United States 10%
    About securities, at present, investors do not have the option to trade securities. Recently, one of eth's ETFs, trading open-end index funds, was denied by the regulators

28. etc owns etc trading trust, which allows investors to own etc instead of the asset itself

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3.

The steps of making a simple radio are as follows:

1. Prepare materials: a plastic bottle with a clean cover, about 15 meters of enameled wire, a germanium diode, an old telephone receiver, two metal clips, and an antenna. After the materials are ready, begin to make the radio formally

2. First of all, wrap the 15m enameled wire regularly on the plastic bottle. If the wire is too thin and inconvenient to wrap, you can choose to wrap around a wall, as shown in the figure below:

6. After the installation is completed, the simple radio can work for a long time. According to the position of the Yellow clip, the radio received from the microphone will change

4.

the circuits of ore radios are almost the same. The coil can be wound with 400 * 400 wood frame or 500 * 500 wood frame, and the number of turns should be about 30-40. The specific listening effect is related to the distance from the radio station. Don't go too far. It is better to be less than 3000 meters. Otherwise, it is necessary to use regular sky and ground wires

5. How to make ore radio:
1 - the longer and higher the outdoor antenna, the better (pay attention to lightning protection), The simple outdoor antenna is also better than the indoor antenna; Indoor antenna is OK, but the efficiency is low
2 - essential earphone: it is better to use 2000 ohm high impedance earphone. Of course, it can be less than 2000 ohm. The sensitivity will be low and the volume will be low (because there is no amplifier circuit)
3 - the real ore machine uses ore detection, and the current detection diode can replace "ore" with good effect In the past, the most commonly used detector diodes were germanium detector diodes such as 2ap9 and 2ap10 made in China. Now it's hard to buy this kind of pipe. It is recommended that you use the 1N60 diode which is commonly used now. This kind of tube is a germanium detector diode proced by American company. A treasure is easy to buy online. The price is about 0.1 yuan
4 - above devices can listen to radio waves. If you need to choose to listen, you need coils, variable capacitors.

6.

By the end of December 2019, etc of expressway toll stations will be fully covered. The advantages are as follows:

Expressway electronic toll has the advantages of fast, safe and environmental protection. Etc benefits not only in saving time, but also in safety and environmental protection. The average time it takes for a car to get through a man-made lane is 14 seconds, while etc has reced this time to 3 seconds. The traffic efficiency of an etc lane is five times that of a man-made lane

by the end of December 2019, etc Lane will become the main toll lane, trucks will realize non-stop toll, express toll rate of non-stop on expressways will reach more than 90%, and all manual toll lanes will support electronic toll collection methods such as mobile payment, which will significantly improve the service level of non-stop toll on expressways

extended information:

there are these instructions when using etc:

in order to ensure accurate billing and vehicle traffic safety, the speed of etc lane should be controlled within 20km / h, and the distance from the rear of the front vehicle should not be less than 10m

when there is no etc lane or the etc Lane cannot be used normally, the user can pass through the artificial lane, pull out the etc card and give it to the toll collector to swipe the card

when you enter the expressway, you don't read the etc card, but normally get the ordinary pass card. When you exit, you can't use the etc card, you can only pay in cash

7. Is it a scam to have a virtual cat recently? Are you talking about the game on the mobile phone, or do you want to help you raise one in other places? What about the real cat? If it's a mobile game, don't inlge in it? And it doesn't need to charge too much money. If it is. Directly help you raise one in other places, it needs to be careful, because you may not be able to really touch the cat. Ah! I don't think it's reliable if it's possible. Of course, if it's a regular adoption agency. Care for stray cats. It can be considered. After all, other people do charity. So you trust them, it's not a scam.