Chapter 1453 (1/2)

Then almost all the people on the scene raised their hands. I have to say that each of them is looking forward to this day, but I didn't expect that this day came so quickly!

Now qinshuo first let some ships sail to Koguryo. After all, Koguryo is closer to Fusang, and now it is a military port built in Koguryo.

These ships can be put in those military ports, and they will certainly be able to play a great battle effectiveness. The construction of these military ports can be regarded as a relatively younger generation. Although the construction time is not too long, Qin Shuo mobilized a lot of manpower and material resources.

Today's Qin Shuo also secretly went back to his Tiangong yuan. This time, he had a very important thing to exchange. Then he was ready to give the exchanged things directly to his craftsmen, because it was a cross era thing.

Maybe that kind of thing seems to be ordinary in today's city, but in such an era, if it can be built or produced, it is a cross century existence.

This kind of thing must not have existed in ancient times. At that time, an engineer of sunset Empire discovered that lime could harden in water during a study.

It is necessary to use limestone containing clay to burn, and then a very solid building material can be collected. In fact, this has produced a very important significance for the development of modern cement.

And this time, some scientists in that factory also found this problem. Then they made some improvements in cement, and now they just use some. Some of the soil near the volcanic rocks is burned to give a cement appearance, which is a brown gray color.

If you add water, this kind of thing can be stirred into a kind of body, and it can be hardened in the air or water. If you add some stones or some sand and other things into it, they can be firmly glued together.

In fact, the significance of this kind of thing is not simple at all. Its discovery has a very important feature for many problems. Maybe some people have not noticed it, but Qin Shuo has already noticed it.

The invention of cement can be said to be a kind of cross modern. After all, if there is a cement, the strength of our city will certainly be greatly enhanced, which is certain to be beyond doubt, and the speed of our own construction will also be greatly enhanced.

And now I can take this kind of thing as an export product, and then sell it to others directly. This kind of thing is certainly very valuable. What's more, the current technology is also in our own hands.

If some people are not self-developed, then it is impossible to invent this kind of thing, even if they know the formula, it is impossible.

In fact, the system still has a very good way, that is, it has a ten-year right to invent many things. If someone else can't invent the same thing within ten years, then all the copyright within this decade belongs to you.