Super Weapon Swap System

As China's manned space base, Yedao's space city is becoming larger and larger. In the future, China's space launch missions will mainly rely on the base here. After all, it is closer to the equator, which can make better use of the speed of the earth's rotation and save fuel.

Now, on the launch pad, the Long March 2 bundled rocket stands quietly on it. Outside the fairing on the top, the bright Han national flag is extremely eye-catching.

The third manned space experiment is about to begin. Although it is somewhat dramatic, it is acceptable to focus on the overall situation.

"Mr. ilyushenko, welcome to our space city." a tall Xiong scientist with several assistants entered the launch command Hall of Han. When he came in, the eagle people outside still had indignation in their eyes.

Why can bear people go in, they can't? Now, if they don't want to use the technology of Han, they really want to confront Han!

Eagle people can't come in, but bear people have no problem. This is the result of negotiation. After all, the spacecraft needs to dock with bear's space station.

Ilyushenko is a student of Korolev, a famous rocket expert in Xiong state, and one of the designers of Mir space station. As such an aerospace veteran, he is naturally arrogant. He could not have looked down on the aerospace technology of Han state.

Hum, the Han people can only imitate. For example, the Shenzhou spaceship of the Han people is no different from the alliance spaceship of the Xiong country. Ilyushenko despises the blatant imitation of the Han country. Therefore, when he heard the welcome of Qin Guan in front, he was still dismissive, but then his eyes widened.

"What's that?" ilyushenko looked at the big screen on the wall.

"This is our main display screen," Qin Guan said. The screen is so tall that it occupies the whole wall of the launch hall. The rocket standing on it looks quite intuitive and realistic. Ilyushenko rubbed his eyes. Yes, even the details of the rocket can be seen clearly. Their equipment is really advanced!

However, it's just a display device. It doesn't matter. It's just sensationalism.

"Please show our guests the track design," Qin Guan shouted.

The rocket on the big screen disappeared and switched to other interfaces. The whole screen is divided into two parts. On the left is a curve marked with points. Where the orbit change is clear, while on the right is a three-dimensional diagram of orbit change. The earth is displayed by the principle of perspective. Each orbit of the spacecraft, Are marked with different colors, very clear!

Now there is a three-dimensional display, but it consumes a lot of computer resources. Therefore, for professional space orbits, Xiong Guo adopts the way of two-dimensional display. Anyway, they can understand it. Now, seeing this three-dimensional interface rashly, he was shocked. The computer performance here is more than 100 times that of their space center?

"We invited you to coordinate the rescue plan, and the most important thing is docking. Therefore, we would like you to verify whether our parameters are correct," Qin Guan said.

"Well, let's start working!" ilyushenko shouted. They all came to coordinate. They thought they needed to calculate together after they came here. Where do you know that the Chinese side has already calculated it? They just need to verify whether the Chinese calculation is wrong.

Assistants took out calculation tools from their pockets, including ilyushenko himself, and also took out the calculation tool they have been using: slide rule!

Aerospace Engineering, like other projects, requires a lot of calculation, and before the invention of the computer, the calculator was widely used for calculation.

Its operation is quite fast and efficient. It can not only add and subtract, but also multiply and divide, which is much faster than calculation on paper. In addition, it can also perform operations such as exponent, logarithm, trigonometric function, square and square. It is a necessary thing for engineers.

Ilyushenko's slide rule, which was given to him by Korolev, has now been polished and shiny. Many scales on it can't be seen clearly, but he knows every operation very well.

The slide rule is composed of five straight bars, which are aligned in parallel and locked with each other, so that the middle bar can slide relative to the other two bars along the length direction. The two outer ones are fixed so that their relative positions remain unchanged. Move the internal deficit, and the scales will change with each other. When you reach the corresponding position, you can find the above calculation results. It is a very simple analog calculator.

Although their attitude was a little arrogant just now, they are still meticulous in doing this calculation. Looking at their calculation, Qin Guan couldn't help but say, "excuse me, do you need this kind of thing?"

The slide rule was once widely used in China. In those years, it was used in the development of rockets. Even nuclear bombs were calculated by hand-held computers. However, the state of Han has changed its guns for a long time. The latest Hanshin technology notebook almost has several hands.

Now, seeing that their calculation was really troublesome, Qin Guan couldn't help but take out a calculator and give them each one.

Calculator is a very simple tool. It has many buttons, various numbers, addition, subtraction, multiplication and division, and can also send out voice. Advanced scientific calculator can carry out complex calculations. There is a black-and-white LCD screen on it to display the calculation results, and a small solar cell to supplement power. This calculator, It's just a trivial small product of Hanxin technology company.

Seeing that Qin Guan took out the calculator, these visitors immediately showed their happy eyes: "need, need!"

In Xiong Guo, the highest level Aerospace Department is not equipped with calculators. Most people use slide rules. The Han engineers present show their respect. They rely on these things to complete the progress of Aerospace Engineering and compete with eagle's Star Wars plan. It's really not simple.

In fact, calculators are only for temporary calculation. We all have computers. It's easier to input programs in them!

With a calculator, they also need paper. They worked there for half an hour and summarized the information. Then, ilyushenko said to Qin Guan, "yes, now, the orbital parameters are completely correct."

Then he handed the calculator to Qin Guan: "here you are."

"No, I'll give it to you," Qin Guan said.