"High pressure 70, low pressure 45, blood oxygen 36, respiratory rate 14..."

In a high-risk ward, a dying patient is being resuscitated by paramedics, and all vital signs show that his life is in its final moments.

Although the doctors who participated in the emergency were wearing masks, their eyes were extremely solemn. It's like you're doing something you know you can't do.

Outside the door of the high-risk ward, more than a dozen anxious family members of patients are hovering. In fact, the vast majority of them are patients' colleagues and students. All of them have the temperament of intellectuals and scholars, but at this time, their hearts are almost in their throats, and their expressions are anxious at the same time, but also show a kind of solemnity and longing.

"Lao Nan, you must hold on!"

An old man with the appearance of a leader stood alone in the corner, staring up at the ceiling, but his mouth kept babbling.

In fact, both inside and outside the ward, people know in their hearts that the patient is already in the terminal stage of cancer, and the cancer cells have already spread to the whole body. Others were already quietly wiping away tears.

After hours of intense rescue, the door to the ward finally opened, and the medical staff exited one by one. They all looked mentally exhausted and looked extremely depressed, like a group of defeated soldiers retreating from the battlefield.

"Doctor, how is Professor Nan?"

The crowd outside the ward rushed up and blocked an old doctor at the head. The old leader also hurriedly leaned over.

The old doctor did not rush to deal with these anxious young and middle-aged people, but stared at the approaching old leader with blazing eyes.

The crowd around made a gap in the amusement, allowing the old leader to face the old doctor.

The old leader showed a hint of calmness in his full concern: "Professor Chen, what happened to Dr. Nan?" Just tell the truth. ”

The old doctor known as Professor Chen nodded slowly: "Director Li, I'm sorry, we all know that Professor Nan is a national meritorious hero, and we want to do everything possible to keep him." But... Despite all our efforts, we couldn't turn anything around. Although Professor Nan still held his breath, he was already in a deep coma, and I am afraid that he will never be able to open his eyes again. ”

The old man, known as Chief Li, stared at the old doctor in a daze for a long time before he seemed to wake up, and immediately squeezed past the old doctor's side and rushed directly into the special ward-

Others followed, and the ward was instantly packed.

The old leader was huddled at the forefront of the bed of the elderly patient, leaning over to stare at the old man with a breathing mask, only to see that his face was like ashes, if not for the slightest breath left, like a dead man.

"Teacher Nan!"

"Professor Nan!"

"Lao Nan!"

Everyone called for this dying old man at the same time, although it was impossible to take him back from the hands of death, but they hoped that there would be a return to the light and some last words. They knew in their hearts that every word left behind by this national hero when he was dying in this world was an incomparably precious treasure.

At the sound of a thousand voices, the patient's eyelids seemed to flutter.

"Teacher Nan has reacted!"

One of them, a middle-aged intellectual-looking man, keenly captured this and immediately let out a voice of excitement.

The old leader's eyes lit up, and he gave out a crystal gaze: "Old Nan, wake up!" Do you want to say something? ”

However, the old man lost his reaction again.

"Teacher Nan!"

"Professor Nan!"

The crowd cried out again. They knew that if the old man did not wake up, he would probably sleep forever. Therefore, they must buy time, which is equivalent to competing with death.

The old leader's name is Li Dequan, the director of the Ziguang Astronomical Observatory of the Chinese Academy of Sciences, and a scientist who has also obtained an academician degree, and this dying patient is his deputy director Nan Binghuai, and he is a scientist who has just achieved great scientific achievements. The people who guarded the scene, except for a small number of family members, were all elites in the scientific community. Although they all have heavy research topics, they also have to send this senior and teacher to the last journey of their lives.

After another unknown amount of time, Nan Binghuai's mouth moved slightly.

The eyes of the nearest old man over sixty years old lit up, and he immediately put his ear to his lips: "Brother, what do you want to say?" Speak up! ”

This old man is Nan Binghuai's younger brother, his name is Nan Bingxian, and he is also a social celebrity. However, he is not a scientist, but an artist, a painter who is well-known at home and abroad, and when he learned of his brother's dying news, he rushed back from abroad.

Under the constant urging of his younger brother, Nan Binghuai's upper and lower lips finally trembled twice, and he made a faint sound...

"Brother, what did you say? Say it again! ”

Nan Bingxian really couldn't hear the faint voice made by his brother, so he could only remind loudly again and again.

Li Dequan and Nan Bingxian leaned side by side in front of the hospital bed, and couldn't help but move in their hearts, realizing that his colleague had not woken up, and all the words he said were like words in a dream, so he couldn't help but shake his head gloomily. How he wished that his old partner at work would be able to tell a complete last sentence clearly.

"Oh my God... Eye··· Days··· Eye..."

Nan Bingxian's sad eyes glowed again, and he turned back to everyone and shouted, "He is talking about 'Heavenly Eye'!" ”

Li Dequan also vaguely heard it, the muscles of his face trembled, and he couldn't help but burst into tears: "Lao Nan still remembers this scientific and technological achievement of the motherland at this time!" ”

Everyone at the scene was silent, and their thoughts seemed to go back to ten years ago-

It was a historic meeting held by the National Astronomical Observatories of the Chinese Academy of Sciences. The venue, which can accommodate 100 people, was almost full. It seems that the venue is not large, and the scale of the conference should be very ordinary, but because the participants are all scientific and technological elites from all over the country, this is actually a high-end conference, which determines the fate of a national super science and technology project.

Sitting on the rostrum was an old man over 60 years old, with a pair of deep eyes and a lock of mustache, who did not look good, but he sat in a prominent position on the rostrum, and the important leaders of the Chinese Academy of Sciences and the National Astronomical Observatories sat with him. Obviously, this little old man has a very special position. He was Nan Huairen, who was a researcher and doctoral supervisor at the Ziguang Astronomical Observatory of the Chinese Academy of Sciences at the time. And this science and technology certification meeting was also held under his initiative.

Presiding over the meeting was a senior leader of the Chinese Academy of Sciences, who cleared his throat and then said in a loud voice: "Comrades, you are all national scientific and technological elites and experts in astronomy. At present, the astronomical industry in the world is developing rapidly, and our research field is no longer limited to the planet where we live, but the vast universe. This requires us to look farther, not just in the solar system, but beyond the Milky Way, and even further away at the edge of the universe. The country's leadership has high expectations for our scientific community, and wants our research field to reach the forefront of the world. In astronomy, we need to make great strides. Due to the infinite expanse of the ethereal universe, no means of transportation can take me to the farther stars, but this does not affect our research on the universe. There are many mysteries about its sub-origins and changing rules that are not known to us. Therefore, according to the needs of the country, our Academy of Sciences put forward the idea of manufacturing a radio telescope, which is known internationally as FAST. Now, I would like to invite you to express your views on this research topic. ”

As soon as his words fell, the entire hall fell silent for an instant, and these senior scientists seemed to have encountered a serious topic.

Nan Binghuai, who was seated on the rostrum, showed a trace of nervousness, his mouth opened, but he finally swallowed the words he wanted to confide.

Finally, a middle-aged scientist stood up in the audience and issued a cautious reminder: "Regarding radio telescopes, developed countries have already tried and actively succeeded. For example, in country D, the largest machine on the ground, the Eiffelsberg astronomical telescope, has been successfully built, which has a diameter of 100 meters and can be called a super project. Excuse me, is it outdated for us to work on this project again? ”

His remarks immediately resonated with many scientists present.

Another scientist chimed in: "This comrade has a point. In country M, which has developed space technology, a larger radio astronomical telescope with an aperture of up to 300 meters is already being developed, which can be called the first of the 10 major projects of the 20 th century. Excuse me, and how big can we build? Because Western countries have blocked technology from us, all technology needs to be publicized by ourselves, and the risk of success or failure is very high. ”

·····························

After a lively discussion, there was a brief silence in the scene.

The leaders of the Chinese Academy of Sciences finally set their eyes on Nan Binghuai: "Could Professor Nan please say a few words?" ”

Nan Binghuai hesitated, and finally opened the conversation...