Seeing Li Chong running to an unknown place for a while, when he came back, he had a large basin of water in his hand, and something similar to a small boat.

Li Zhong put it on the ground and first said, "You should have all seen the water boiling with a kettle?" ”

"Yes, but so what?"

Wei Zheng said.

Li Chong: "Have you ever noticed that when the water boils, the lid of the kettle will be lifted by the heat inside, and then it will hit the kettle itself, constantly making some restless-sounding sounds. ”

"So what?"

Wei Zhengdao.

"Therefore, through this phenomenon, we can recognize a truth, the heat in the boiling kettle contains a kind of power, which is enough to lift the lid of the kettle."

"Science, first of all, is to understand the truth behind this phenomenon, to find out its laws, and finally, to apply it."

After saying that, Li Zhong poured water into the pipe of the puff boat, put it in the basin, and then used a fire breaker to light a candle on top of the spoon, and then put the spoon in the place where the heat of the puff boat was used to generate power.

The four of them watched Li Chong's movements, and they didn't know what Li Chong wanted to do.

But......

The start of the puff boat was also extremely fast, it only took a few minutes to seem to have a reaction, and after half a minute, the boat was already able to move freely on the water.

And......

There is no intention of stopping.

Everyone looked at this little thing curiously, even Li Lizhi was no exception, and the words innocence and curiosity were clearly written on her face.

"Why is this thing ...... It won't stop? ”

Wei Zheng felt a little surprised.

Even the eldest grandson Wuji couldn't help but feel a little surprised, and looked at Li Er with a surprised gaze.

Li Er: "Li Chong, what does this mean?" ”

Li Chong said: "Actually, this is the same as boiling water, I just poured water into the two pipes under this small boat, but it is impossible to completely fill the inside, there will be a bubble inside, when you use a candle to heat this bubble that you can't see, the power generated by this bubble is the same as the force that can lift the lid of the kettle, it can pass through the discharge of the water contained in the pipe, and then push the boat forward." ”

"So theoretically, as long as the candles are burning here, the ship will keep going. Of course! This small boat can only be regarded as a gadget here, but just imagine, if you can build a similar kind of big ship, a big ship that can load people and goods, as long as you boil hot water on the boat, you can make the boat move forward, as long as the power is big enough, even if it is a boat against the current, fighting the wind and waves, it is not a problem, so what? ”

"And what did the ships of the past often rely on? Sails, or natural water flows, or slendermen, manpower, for example, someone on the shore needs to pull the boat forward, or there is a person on the boat holding a penny. ”

"But if you have this, in the future, you don't need to look at the weather, you don't need to look at the direction of the water, and you don't need to spend too much manpower, but you just need to boil water, and someone remembers to add a fire to the stove."

"This is science, taking the truth that everyone in this world is accustomed to and does not care about, carefully understanding and studying it, and finally, turning it into its own use."

"As for this purpose, it is naturally to make Datang better."

"That's why the Academy of Sciences was established."

Of course!

Li Chong would never say that he just wanted to get an extra job.

Pan technology, for the benefit of the public, to be honest, is not his original intention.

Everything he does actually stems from whether it is beneficial to himself.

It's like making a pedal reeling car, in fact, I just want to make more styles of clothes in Datang in the future.

In this way, he will be able to enjoy his concubine wearing more beautiful and gorgeous clothes to please his body and mind.

To be honest, he wanted to make stockings.

Tang Dynasty women wear white stockings.

Just think about it......

The question is......

This thing shouldn't be easy to get by. Moreover, his research in this area does not need to be almost, it is zero.

After everyone heard this, they all looked at Li Zhong fixedly.

Wei Zheng's admiration for Li Chong was even more spontaneous.

Said apologetically:

"I didn't expect Dean Li to think of so much. Before, it was me Wei Zheng who was superficial. I think Dean Li is just a little skillful. I want to apologize here. ”

"Ahem! It's over, in fact, it's all for Datang. ”

Li Er's face was also full of smiles, and he said happily: "It's all for Datang, this sentence is good!" ”

Now Li Er is not rewarded.

Li Chong felt pity.

But yes, this is the responsibility of the Academy of Sciences, and the key is that if you reward everything, the reward will not be worth much in the future.

"So, when are you going to build this ship?"

Li Er asked Li Chong.

Li Chong was embarrassed for a moment and replied, "Uh...... In fact, there is still a lot of gap between theory and reality. That's the difficulty of science, sometimes, the idea is beautiful, but the reality is very slap in the face. So when it will be built, I can't say. ”

What you make is not good for yourself at all.

Let's drag it out for now.

However, if it can really be made, it will be used to develop Jiangnan and transport the grain from Jiangnan to Chang'an, which is still very good.

Even if it can't be used for the navigation of the whole water section, it can be used for navigation on the Cao Canal.

Li Chong seemed to be able to see the ironclad battleships that appeared on the Cao Canal, no, they were ironclad grain carriers.

Li Er did not embarrass Li Chong.

It's just that this kid has a lot of things to hide.

He said, "Do you have anything else here?" ”

Li Chong said: "Recently, binoculars have been made. ”

Then Li Zhong went and took out a few of the binoculars he had made.

Wei Zheng and the eldest grandson Wuji each have one, and even Li Lizhi has it.

Li Zhong introduced: "It's just that the magnification of this magnification is not high. ”

Li Lizhi held the binoculars and stood very ladylikely, looking at the thing that was pulled closer to her eyes in amazement, how could this thing be so magical.

"What can this thing do?" Eldest Sun Wuji asked.

"It was used to reconnoiter the enemy situation for the soldiers at the border pass, and it was also used to view the scenery. Look at the moon at night. However, don't put this in front of the sun, or you'll be blinded by the sun. ”

"What's the reasoning behind this?"

Wei Zheng seemed to be more interested in this.

Then taking advantage of the gap between talking, and they were still observing with binoculars, seeing that Li Lizhi was quite close to him, Li Chong also took out a glass bead and motioned for her to take it.

This bead is a high-end commodity in Datang.

The value is comparable to that of a gemstone.

Li Lizhen made a 'for me?' 's expression.

Li Zhong handed it over again.

And then she took it.

Almost discovered.

It's just that she is very puzzled, why did Li give her this? It's only her, and the father and the emperor have it. But this thing looks pretty pretty too.