The U.S. Grand Hotel is located in Salt Lake City and is a five-star hotel built on 185 million U.S. dollars. At the weekend, there were two special guests here, one of them was Senator Hatch, and the other was the famous Apple CEO Tim Cook.
Cook was invited by Hatch to conduct a special dialogue with him. In the program, Cook once again emphasized the bright future of emerging augmented reality technology (AR) and emphasized the importance of digital camera technology.
For three consecutive appearances, he will talk about AR.
This is not Cook's first mention of AR. As early as July, when the AR game "Pokemon Go" caught fire, Cooke once said to financial analysts: "We have invested a lot in the AR field and are continuing to invest. In the long-term development, we are optimistic about AR."
In August, Cooke told the Washington Post: "I think AR is very interesting and it can be regarded as a core technology. Indeed, this is an area where we invest a lot of resources internally."
In the middle of last month, Cook, who was interviewed by ABC TV, emphasized that "AR's development prospects will be better," and this time it also contrasts with VR, saying that AR is "more superior."
It can be seen from this that Cook has made public appearances every time in the last three months. In addition to the introduction of specific products for the China trip and the iPhone conference, he has almost always mentioned his opinion of “look at the ARâ€. It has reached a point of patience.
However, Apple's investment in the AR field is indeed huge. We have just reported the new AR patent filed by Apple before, and Apple had already invested more in this area before.
Miss Jobs: I called Apple after I called him for five minutes
In addition to AR, Cook also recalled his old friend, Apple’s previous CEO, Steve Jobs, at the scene last week. He said that in 1998 he received Steve Jobs "change his life's phone call," and "talked for five minutes and wanted to leave everything and join Apple." Cook laughed and said "This is the most correct decision I ever made."
Cook also talked about his concern for encryption technology. We believe that encryption is "one of the biggest problems faced" and it guarantees "public safety." Cook also said that Apple is doing its best to protect the privacy of its customers from hackers and even government agencies.
An impulse turbine is a type of steam turbine where the rotor derives its rotational force from the impact force, or the direct push of steam on the blades.
The impulse turbine consists of a rotor mounted on a shaft that is free to rotate. Attached to the rotor are a set of curved blades. Nozzles then direct the high pressure and high temperature steam towards the blades of the turbines. The blades catch the impact force of the rapidly moving steam and rotate from this force.
The Impulse Principle
The steam at high pressure enters through a stationary nozzle of a steam turbine, as a result the pressure of the steam is decrease and an increase in steam velocity. As a result of increased steam velocity steam pass through the nozzle in the form of a high-speed jet. This high-velocity steam hit the properly shaped turbine blade, as a result, the steam flow direction is changed. The effect of this change in direction of the steam flow will produce an impulse force. This force cause the blade move, thereby the rotor will start to rotate.
The force applied to the blade is developed by causing the steam to change the direction of flow (Newton`s 2nd Law – change of momentum). The change of momentum produces the impulse force.
Impulse Turbine Working:
In the impulse turbine pressure drops and the velocity increases as the steam passes through the nozzles. When the steam passes through the moving blades the velocity drops but the pressure remains the same.
The fact that the pressure does not drop across the moving blades is the distinguishing feature of the impulse turbine. The pressure at the inlet of the moving blades is same as the pressure at the outlet of moving blades.
Impulse Steam Turbine
Shandong Qingneng Power Co., Ltd. , https://www.steamturbine.be