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"The Soviet Union and the United States are going to space soon, and we are launching satellites to see if it will rain on the ground."
The National Weather Service, Ren Xinmin made a self-deprecating joke.
Tu Changwang: "It's so expensive to send a person to travel in space, and there's no special benefit. It's more important whether it rains on the ground or not."
Last month, a tall Pozi antenna was erected on the roof of the Meteorological Bureau building, which looks like a lightning rod from a distance.The Fengyun-[-]A satellite was launched successfully. After several days of debugging, it was ready for use three days ago.
Today Fengyun-[-]A will fly over China, take the first round of meteorological satellite photos, and transmit them to the ground through the communication module in real time.
In fact, not only the National Meteorological Administration building is equipped with lightning rods, Nanchang, Jiangxi, and Hulunbuir, Inner Mongolia each have a ground station, which is responsible for receiving data transmitted by satellites, and then transmits the received data back to the National Meteorological Administration.
Within a few minutes, Fengyun [-]A passed over Beijing, and then continued to roar away.
These few minutes are enough to transmit dozens of photos to the ground.While the data is being stored on the computer hard disk, the transfer device is also creakingly activated, re-outputting the data in the form of photos.
Tu Changwang and Zhu Kezhen each held a large-format photo in their hands, and compared the coordinate system to see how the cloud map in North China is distributed and moves according to the law.
After browsing the photos, Tu Changwang walked out of the office of the satellite ground station, went to the meeting room downstairs, and showed the photos to James Stagg.
"This is the cloud map over China received by satellite 15 minutes ago." "This is the cloud map over China 115 minutes ago."
……
Stagg: "Is this what you were talking about in 1958, that there was going to be a disruptive technological force coming into weather forecasting?"
"That's right. Now, it's done."
Stagg: "I have learned about the orbits of satellites in space these days. In the long run, your satellites will pass over any part of the earth, and theoretically they can take pictures of any corner, right?"
Tu Changwang: "That's right. This is what I want to say today. If the Royal Academy of Sciences and the Met Office need satellite cloud images to enhance your weather forecasting system, you can ask us directly. This is for civil and commercial purposes Cooperation has nothing to do with the military, and it is very convenient for our two countries to cooperate."
Chapter 38, computers are only rented and not sold
London.The Red Room of the British House of Lords.
"Please be quiet. Please be quiet, I can't hear anything." Lord David Pfeiffer, the Minister of the House of Lords and the Conservative Party, maintained order at the scene. "Everyone, don't make too much noise!"
Earl Pfeiffer finally suppressed the voice of the venue, picked up the glass of water to moisten his throat, and in the seat directly opposite, Lord Parkhead Livingston stood up to speak.He turned slightly so that he could look directly at Met Office Director Graham Sutton:
"Sir Sutton, can your words be understood as follows: Chinese satellites fly over the United Kingdom, use a camera to view our territory from the beginning to the end, and then go away, and then, if we want to see These photos, want! To! Chinese! Pay! Money!?”
Graham Sutton: "Your understanding is very accurate, my lord."
"This is an insult, this is a robbery, these brazen Chinese!" Parkhead Livingston was so angry that his beard was raised.
Livingston's words caused a roar of echoes in the Red Room.
"Chinese satellites are clearly spying on the UK." "They took pictures illegally over us, and we should hold them accountable!" "Can't The Hague and the United Nations take care of this behavior?"
The Lord Lothian, a member of the House of Lords, stood up and said angrily: "Why didn't the Royal Air Force shoot down the Chinese satellite that invaded the British sky!"
The venue suddenly exploded again. Some people laughed at the Marquis of Lothian, and some knocked on the table to object, but there were actually one or two supporters.
"Mr. Marquis, Chinese satellites are flying in space, and space is a land without sovereignty, which is stipulated by international law."
"Only when the altitude is lower than 100 kilometers is it considered British airspace, and if it is greater than 100 kilometers, it is regarded as space. This is a public space without sovereignty."
"Mr. Marquis, let me say frankly that the Royal Air Force is not only unable to shoot down flying objects at altitudes above 100 kilometers, even aircraft flying at altitudes above 20 kilometers, they have nothing to do."
……
Graham Sutton, director of the British Met Office, was like a clay sculpture, sitting silently and waiting for the MPs to finish their quarrel before slowly standing up and explaining to Earl David Pfeiffer:
"Dear Lord Tramsler, I don't quite understand that this government budget is not a big money, but it has been submitted to the House of Lords for discussion; what is even more incomprehensible is that there are so many members of the House of Lords They express their opposition and unacceptable."
"Yes, we pay for weather cloud images, just like we pay photo studios and hired photographers when we shoot weddings."
"Meteorological cloud maps help the Met Office to have a detailed grasp of the sky across the UK and the surrounding seas, so as to make accurate weather forecasts. With accurate weather forecasts, pastures and farms in the UK can avoid many natural disasters. Many of the gentlemen here are giants in agriculture and animal husbandry, and you understand the importance of weather forecasting better than I do."
"Gentlemen here are also fishery tycoons and shipping tycoons. Accurate weather cloud maps can also predict storms, cold waves, and the time of freezing and thawing of ports. This is also beneficial to you."
"Accurate and timely weather cloud maps can also allow the Met Office to make longer-period weather forecasts. In this regard, James Stagg, the chief weather forecaster of the Met Office in England, is an authority. Let him explain to you."
James Stagg stood up:
"Gentlemen, I just came back from China. I also brought you the news that China's meteorological satellites can be authorized for commercial cooperation with foreign countries."
"First of all, I want you to try to forget the embarrassment of Chinese satellites taking pictures of the UK in space. Maybe you should think about it from another angle: even if we don't pay, the Chinese satellite will still fly over the UK every 18 hours, and still take pictures. The next bunch of photos that we Brits can't see. Wouldn't it make you feel worse if that was the case?"
MPs: …
"Secondly, it is about longer-period weather forecasts. Currently, the Meteorological Bureau provides weather forecasts for the British Isles for 24 to 48 hours, that is, 1 to 2 days. In fact, the Meteorological Bureau calculates the weather after 2 to 3 days. It takes us 6 hours to 24 hours to get the data from the weather station and aggregate it to the weather center, so when the calculation is completed, it is only forecasting the weather in 1 to 2 days.”
"That is to say, just by buying satellite cloud images and changing nothing else, we can instead provide the weather forecast for the British Isles in 48 to 72 hours."
"Now, I can also improve the algorithm and use the computer to extend the calculation of the Meteorological Bureau a little bit forward. If we buy China's satellite cloud images, we can provide weather forecasts for 3 to 5 days. Of course, this Compared with China, which has achieved mid-to-long-term weather forecasts for 10-14 days, there is still a big gap, but it has been greatly improved compared to the past.”
The first few sentences were fine, but Stagg's last sentence was like throwing a stone into a summer rice field, and the frogs started croaking again.
"How does China know the weather 14 days later? Are the satellite photos China uses particularly clear?"
Stagg: "No, the clarity of the satellite photos is the same, but China has access to super powerful computers when doing weather calculations."
"Then we'll buy the Chinese CU-60 'Big Rain'. Buy a high-end version."
Stagg smiled wryly: "China's mid-to-long-term weather forecast is not the kind of computer that is sold abroad. I am afraid that 100 'big rain' high-end versions can't compare with the supercomputer in China. We can choose supercomputers. Computing power rental service.”
"What is computing power lease?"
"The supercomputer still belongs to China, and it is also placed in China. We submit the formula or program that needs to be calculated to China through the communication line; China performs the calculation on the supercomputer, and then informs us of the result."
……
In February 1961, it was the day when the T2 series computers were released in the socialist camp.
A new generation of computer models is launched every year, but the main computing chip is actually updated every two years. T55 and T56, T57 and T58, T59 and T60, their main computing chips are the same, the so-called "changing the soup without changing the medicine", the difference is that some details have been slightly adjusted, or the standard hard disk has been added , or the hard disk capacity has increased.
Computers starting with T are still relatively expensive machines. Tang Hua's "student computer" (personal computer) is a cheap computer, but it still faithfully assumes the functions of a learning machine for university student computer rooms and a computer terminal for government affairs networks.
When will the personal computer be released...Probably wait for China to consolidate its basic industries, and when China's own foundation is strong enough to enjoy the convenience brought by the explosion of computer technology, then release the personal computer.
However, although he does not plan to promote personal computers; although the student machine mainly promotes computers built with XS3725 chips, when the 4-micron process is put into practical use, Tang Hua still puts XS12306 chips into small-batch production.
"Currently, for the computer science students of Tsinghua University and Beixin University, a necessary summer homework is to assemble a student computer in the summer vacation of the second year and before the start of the third year. It is a working machine for graduation small design and big design.”
Tang Hua and Li Qiang are saving an XS12306 computer now.Plug in the motherboard, CPU, memory, hard disk, and floppy drive, install the power supply, connect the cables, and turn on the computer.
Floppy drive... yes, floppy drive.
Read/write floppy disks and their drives were introduced in 1972 by IBM for their mainframes.The floppy drive in Tang Hua's hand was like a thick 16-format book, so bulky that Tang Hua frowned, but Li Qiang looked at the floppy drive like a baby.