If you want to talk about IQ and comprehension, then Li Chong and Zhang Sui are definitely not comparable.

But...... This stupid man has his own stupid way, and after training the Silla maid well, so that she even stuck out her tongue and rolled her eyes at herself happily, and enjoyed her beauty like this.

Since I can't understand your thoughts, I'll follow my own ideas.

Plainly! Even if the sky is broken, the definition of this speed is the distance divided by the time, so the rotation of the gears must be related to time.

And then...... After finishing the incident, Li Chong gave a bag of his initial thoughts. At last...... Then hand it over to Zhang Sui to solve the door.

…… Zhang Sui's side...... I'm worried that I have nothing to do. As soon as he heard this, Li Lao asked himself in the letter: Are you interested in measuring the speed of light.

Although it is basically useless to measure it, it is regarded as an exploration of the world.

Zhang Suidang even responded to the servants of the princess's mansion. So what's next...... This matter will be handed over to Zhang Sui.

If you can't solve it yourself, leave it to someone else. And...... Speaking of which. Li Zhong felt that he couldn't do everything alone, in fact, he should also give these juniors a little support.

If you want to say shameless, you really have to be heavy! But one thing to say, he really thought about it, just...... He felt that if it was completed by a scholar like Zhang Sui, it should be faster.

Not to mention...... He actually has more important things to do. For example...... He's going to have to prepare the equipment.

How to solve the problem of this light source, and how to solve the problem of measuring the speed of the gear. Don't look at the speed of light measurement in books or on the Internet, it seems to be written and described very simply, but in fact, it is not, and there is still a lot of technical content.

For example, if you want to measure the speed of light, you might have to increase the speed of the gears to a few thousand revolutions using different gears.

Thousands of turns that the human eye can't tell, how do you know how many times it turned. Of course! Li Chong has already thought of a brilliant solution.

That's right! It was in the gap between the words just now that I thought of it. …… Zhang Sui solved the theoretical part.

On Li Chong's side, he is responsible for practice. And also...... If Li Zhong is not mistaken, this uses a mechanical gear to measure the speed of light, which seems to require two long, long distances.

In the West, measurements are carried out on islands. In the words of Datang...... I can only say that it is a little choking.

It may be better to put the place of the experiment on the northeast coast, that is, the area of eastern Liaoning.

And also! This light source, electric light is no problem, but how to make a brighter electric light, and such a long distance, it may be necessary to use a high-powered telescope to cooperate with the observation.

But then again. It seems that how to accurately measure the distance from the shore to the island is also a big problem.

So...... If you measure the speed of light in this way, there will definitely be a large error. It may only be possible to measure a ten-power-eighth order of magnitude at most, and then the previous numbers may be a little different.

So how can this experiment be optimized? Or even put it indoors? That is, in the afternoon of the same day.

Li Zhong solved this problem by the way. It's actually quite simple. This light can be reflected, so get a few more mirrors to reflect, and this problem will be solved.

Soon...... Li Zhong worked overtime to write down the requirements for the experimental device. Next...... That's what the craftsman has to solve.

So...... The development of science and technology must be based on a certain amount of productive forces. If today's Li Chong was not a concubine in the princess's mansion and had no worries about food and clothing, then this experiment would not have been able to be done at all.

It is no wonder why people like Newton are either nobles or inherit their family's big farm.

Only those who are idle and hurt will study these things that have no effect on eating and drinking. …… A few days later...... Zhang Sui did not disappoint Li Chong.

It quickly became clear how the speed of light was measured. But how to say it. It may be that Li Chong's understanding is a little worse.

As soon as he told Zhang Sui, Zhang Sui could immediately understand that he was different. Li Chong's words...... It can only be said that he still has to think about it again.

Even if the other party has already told himself to answer. Li Zhong looked at Zhang Sui, and Zhang Sui also looked at him innocently.

At this moment, Li Chong couldn't help but stroke his beard while pretending to think - the gap between people is sometimes a bit big.

He is the kind of person who can only score 80 points at most in the exam, and he can barely be considered to be excellent and can be ranked a little weaker, while Zhang Sui is the kind of person who scored 100 points, and that is because there are only 100 points on the paper.

But...... To be honest, Li Chong is actually very happy. Because...... Even in Li Chunfeng's body, he didn't feel this way.

That is to say, Zhang Sui may be even more powerful than Li Chunfeng. Of course! Li Chong is not saying that he wants to belittle Li Chunfeng, in fact, Li Chunfeng still plays a pivotal role in the development of Datang arithmetic.

Li Chunfeng just wasn't born in a good era and died early, if he were still alive now, Li Chong believes that Li Chunfeng would also be able to calculate the speed of light.

Putting down Zhang Sui's calculation process, Li Chong then said: "The things used in the experiment have already been prepared, but I have upgraded them slightly. Let's see how it counts. And then ...... Li Chong gave Zhang Sui a new way to measure the speed of light.

Although Zhang Sui didn't know why he did this, in fact, it was similar to the previous method, and it could only be said that the reason was exactly the same, so this was naturally not a difficult thing for Zhang Sui.

It's been about a month. After the craftsmen and Zhang Sui, Li Chong and a group of people, soon, the measured data and the speed of light were quickly calculated.

That's about 90 million zhang per second. Soon after, the report was published in the journal Science.

The main writer of this is still Zhang Sui, so it can also be seen that in the author column, Zhang Sui's name is also ranked after Li Chong's name.

And after everyone in Datang saw this, they were also surprised by this, as if they were more surprised by the measurement of the speed of light.

After all...... Who the hell is this? can be ranked with Li Chong's name, and moreover, it has to be ranked in front of Li Chong's name.