Realid blockchain

1. blockchain is an important concept of bitcoin. In essence, it is a decentralized database and the underlying technology of bitcoin. Blockchain is a series of data blocks generated by cryptography. Each data block contains the information of a bitcoin network transaction, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block
characteristics of blockchain:

decentralized
e to the use of Distributed Accounting and storage, there is no centralized hardware or management organization, the rights and obligations of any node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system
openness
the system is open, in addition to the private information of all parties to the transaction is encrypted, the data of the blockchain is open to all, and anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent
autonomy
blockchain adopts consensus based specifications and Protocols (such as a set of open and transparent algorithms) to enable all nodes in the whole system to exchange data freely and safely in a de trusted environment, so that the trust in "people" is changed into the trust in machines, and any human intervention does not work
information cannot be tampered with
once the information is verified and added to the blockchain, it will be stored permanently. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid, so the data stability and reliability of the blockchain are extremely high<
anonymity
since the exchange between nodes follows a fixed algorithm, their data interaction does not need trust (the program rules in the blockchain will judge whether the activity is effective by themselves), so the counterparties do not need to let the counterparties generate their own trust by disclosing their identities, which is very helpful for credit accumulation<

the application of blockchain
the art instry
ascribe allows artists to use blockchain technology to declare ownership, issue numbered, limited edition works, and target any type of art in digital form. It even includes a trading market where artists can buy and sell through their websites without any intermediary services
legal instry
bitproof is the most advanced of many document time stamp applications emerging in recent years, which will make the traditional notarization method a thing of the past
development instry
colu is the first enterprise to allow other enterprises to issue digital assets. They can "token" all kinds of assets and make a profound impact on many people
real estate instry
the international bitcoin Real Estate Association (ibrea,) is not a company, and is more similar to an instry lobbying organization
Insurance Instry
Tongxin society is the first domestic application project of blockchain technology and an open mutual information service platform
thank you!

2. IMAX (abbreviation of image maximum) is a kind of film projection system which can project larger and higher resolution than traditional film. The whole system includes film , projector, sound system, screen and so on. The standard IMAX screen is 22 meters wide and 16 meters high, but it can be played on larger screens, and so far there are more IMAX screens
Dolby is the Chinese translation of Dr. r.m.dolby in the United Kingdom. His Dolby laboratory in the United States has successively invented Dolby noise rection system, Dolby Surround Sound System and other technologies, which has had a great impact on film sound and home sound. Dolby technology commonly used in families mainly includes Dolby noise rection system and Dolby Surround Sound system
according to the plot of the film, 4D movies have carefully designed smoke, rain, photoelectric, bubble, smell, scenery, character performance and other effects, forming a unique form of performance, which is the very popular 4D cinema today
reald 3D is the 3D projection technology of reald company. It uses relatively complex circularly polarized light and can tilt its head freely after wearing glasses

Screen x is three independent projection screens, so it is projected from the rear of the cinema to the left and right. Because of this, the projection effect of the rear is much better than that of the left and right screens. As a result, the brightness of the main screen is significantly higher than that of the left and right sub screens, which makes the three screens have a certain three-dimensional sense at the viewing time, But in fact, because the brightness problem is not so obvious, and there are plug-in audio on the left and right screens, so the projection and shadow of the audio will also be displayed on the secondary screen, so the brightness will be more dark.

3. Authentic authentication

4.

In the main menu, find the interface, and delete the check in front of friends online and friends offline, as shown in the figure:

5. They are the standards set for different aspects of the film, and there is no comparative value<

IMAX is the standard of IMAX film projection system. The whole system includes film made in IMAX specification, film storage environment, sound system, IMAX projection room, etc

Real 6fl is a projection standard, which means that the projection brightness reaches 6fl (FL is the brightness unit)<

expand reading:

reald is a common 3D projection technology in cinemas. Real D system uses passive system, the biggest feature of this system is that the glasses are cheap, even the cost is only a few yuan. At present, reald has more than 80% market share in North America. But for the cinema, this system needs a special metal screen, which can't play 2D white screen. Dolby (Dolby 3D projection) system's improvement on real D is mainly reflected in the use of white screen, but the negative impact of such improvement is the rection of the system's optical efficiency. In terms of citation, the technology used by many 3D display procts in the world comes from reald company<

IMAX (image maximum) is a kind of film projection system that can project larger and higher resolution than traditional film. The whole system includes film , projector, sound system, screen and so on. The standard IMAX screen is 22 meters wide and 16 meters high, but it can be played on larger screens, and so far there are more IMAX screens

References:

Network: IMAX

Network: realid

6. The file has been sent. Put it in the root directory and run it directly.

7. Real
English; ri:ə&# 712; lɪ stɪ k] Beauty [&; riə&# 712; lɪ stɪ k]
adj.
realistic; Lifelike; lifelike[ Art, realism, philosophy, realism; Vivid

8. Did you watch the dog live yesterday;

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when you sleep and do nothing, your income is still increasing, which is the best way to make money

Li Ka Shing has a famous saying: "before 30 years old, people rely on physical strength and intelligence to make money, and after 30 years old, they rely on money to make money.