Yu Qiu's "Sky Mirror" shocked Li Kang, Ning Xingqing and others, but then her harsh requirements made everyone present unable to sit still.

It is now almost the end of 2010, and it is required to be completed and operational by the beginning of 2015, with only a little more than four years to complete, which is not an ordinary harsh task, almost impossible task.

At this moment, the people at Xincheng University are all embarrassed to say something, and what they are most worried about now is that if they can't give Yu Qiu the answer he wants, they may turn around and leave.

Xincheng University is likely to miss out on this scientific research cake, so isn't it a boiled duck watching it fly away?

Li Kang and the others really couldn't figure out why the people of the Natural Science Foundation gave such a short deadline.

The NSU gang didn't know because they had historical limitations, but Fang Hong, who had passed through rebirth, knew that the LIGO experimental team of Lao Mei next door would detect gravitational waves in 2015.

LIGO built the device as early as 1999 and has been trying to detect gravitational waves ever since, but it has never been detected, and it has been upgraded several times in the meantime, and it is still not detectable until the completion of the LIGO device this year.

However, with the head of LIGO applying for another $400 million from the Science Foundation Committee of the United States, LIGO will be upgraded again to successfully detect gravitational waves in 2015.

There are not many substantive achievements in basic scientific research, and Fang Hong must have spent so much money to take down this achievement, and he can't let LIGO take it away.

To say that the detection of gravitational waves in the first step will bring any substantial benefits, in fact, there is no benefit, more of a scientific honor, that is, to prove Einstein's prediction a hundred years ago, but if you really think so, it must be a very narrow view.

With this honor, it first explains that investing so much money is not in vain, and then it can attract more talents to join, promote the progress of basic scientific research, further promote breakthroughs in applied research, and finally transform commercialized technological achievements.

There is no breakthrough in the bottom thing, and there is no new result in the application of the upper layer.

But at this moment, after Li Kang and Ning Xingqing whispered for a while, Principal Li turned to look at Yu Qiu and said cautiously: "Ms. Yu, if you want to meet your requirements and achieve operation in 2015, objectively speaking, it is not impossible to do it theoretically or technically, but I am afraid that even the budget of 5 billion yuan required is far from enough." ”

It's still a matter of funding, you have to add money!

If the funds are sufficient, it will be different, expand the team size several times and more refined division of labor to improve efficiency, and at the same time have to cover for possible failures, such as failure during the launch, then there must be a backup satellite, right?

But these mean that the scale of project investment has soared, and it is too loser to be in a hurry, if it is a comprehensive assessment to find the most reasonable arrangement based on the actual situation, such a plan is generally completed in 15~20 years is relatively reasonable.

At this time, Yu Qiu said calmly: "It's good that it can be done technically, but the problem of funding is not a big problem, and the budget of 50 billion yuan is not enough to be added." ”

Boy......

Li Kang, Ning Xingqing and other people from Xincheng University were all dumbfounded, and their expressions read: I can't understand it, but I'm shocked!

Before everyone came back to their senses, Yu Qiu had already gotten up, she looked at everyone and looked at Ning Xingqing and said: "Professor Ning, we hope that you will be the chief scientist of the project, and within a month you will come up with an executable theoretical plan, and if the plan can be approved, the Natural Science Foundation can allocate funds to start the 'Sky Mirror' project." ”

It's crisp and clear.

Li Kang and the others personally sent Yu Qiu and Fang Hong out of Xincheng University in a daze, until Maybach left the school in a car, they still felt in a trance, especially Ning Xingqing, who had been engaged in research for most of his life and never dreamed of ushering in such a life opportunity.

President Li Kang, who was the first to come to his senses, suppressed the excitement in his heart, and he immediately held a seminar with Ning Xingqing and others on this matter, which undoubtedly became the most important and top priority of Xincheng University.

The top priority is to demonstrate whether the "Sky Mirror" project can be realized by 2015, and the Natural Science Foundation has given a one-month deadline, which is still very urgent.

All in all, Metro University must not miss the opportunity to lead the cooperation led by the "Sky Mirror" project.

……

On the other side, Maybach drove into Huayang Villa, and the two entered the Meditation Villa, and after coming back, Yu Qiu's temperament changed suddenly, she looked at Fang Hong and said with a smile: "How is it?" I'm doing okay as the chairman, right? ”

At this moment, Yu Qiu's smiling expression seemed to mean "praise me", Fang Hong glanced at her with a satisfied smile and said, "Well, if you behave well, you should be rewarded." ”

Yu Qiu and Fang Hong looked at each other and said unabashedly: "You want to send people away as soon as you send them away?" You want to be beautiful, at least three shots! ”

After saying that, she left the living room and walked towards the bedroom, where her bedroom was on the first floor.

At this time, Yu Qiu glanced back at Fang Hong and gave him a look, Fang Hong understood what he meant, well, what the chairman of the board of directors meant was to quench his thirst and quench his hunger now, Fang Hong smiled calmly and stepped forward.

You only need to get the chairman done, and the chairman is satisfied, and the rest of the chairmen can do it.

Therefore, getting the chairman of the board of directors is the basis for getting everything done, and there is nothing wrong with it.

There's nothing you can't get in one shot, and if you do, then do it again.

……

In the following days, Ning Xingqing from Xincheng University led a team with more than a dozen other scientists from Xincheng University to demonstrate the scientific and technological requirements of the "Sky Mirror", and President Li Kang was also in attendance.

Time is too precious, not only to deal with the solution given by the Natural Science Foundation, Ning Xingqing himself, including Xincheng University, also hopes that the "Sky Mirror" project can be successfully completed.

And now the top priority is to demonstrate the feasibility of the "Sky Mirror" project.

“…… The technical requirements are based on the average gravitational wave detection sensitivity of the observed celestial events, and the ratio of the gravitational wave detection sensitivity h to the length of the relevant interferometer arm is [h=2δL/L]. At the seminar, Ning Xingqing listed a formula, and then said: "In this formula, L is the arm length of the interferometer, and δL is the change in arm length, that is, -1/2 power of mHz. It should be noted, however, that the technical requirements are given in terms of the density of the gravitational measurement of the linear spectral lines......"

Ning Xingqing continued: "The basic principle of space gravitational wave detection is to use the spacing of the test mass of free levitation in space as a sensor, and convert the gravitational wave signal into a signal of the change of the test mass spacing, and to achieve the sensitivity required by the gravitational wave detector, it relies on three main factors. ”

President Li Kang, who attended the meeting, asked, "What are the three factors?" ”

Ning Xingqing replied: "One is the arm length of the interferometer; the second is the ability to accurately measure the change in the distance between the two test masses; The third is the ability to measure and suppress other non-conservative forces except gravitational waves, so as to ensure that the laser interferometric ranging system can effectively detect the gravitational wave signal. ”

Everyone couldn't help but nodded, and Ning Xingqing continued: "The second is the question of the measurement principle and payload, in order to realize the space-based form of interferometer, two sets of laser interferometer systems are designed on the mother spacecraft, one of which is used to lock the weak light received for phase-locked amplification. ”

"In order to better respond to the polarization characteristics of gravitational waves, three satellite arrays at the top of equilateral triangles are used, and each satellite should be equipped with two test masses as the endpoints of the three interferometers to form two sets of laser interferometers between the stars. Space gravitational wave detection uses the free-levitating test mass as a sensor, and converts the gravitational wave signal into a signal of the change in the test mass spacing, that is, the change in the arm length of the interferometer. ”

……

(End of chapter)