The significance of hybrid rice is self-evident, and it can be said that it is the greatest invention in the history of human civilization, feeding hundreds of millions of people around the world.

In the Ming Dynasty, Song Shihui will leave a name in history, not to mention, and even countless ordinary people will set up a shrine for him and become a saint second only to Confucius.

Zhu Shun now knows the customs of the Ming Dynasty very well, and knows how much grain can be grown on one acre of land, and the high-quality water irrigated fields is only more than three stones, not to mention Zhongtian and Xiatian.

The yield of super hybrid rice can reach 15 stones, and even if the super hybrid rice cannot be studied, the average hybrid rice can reach 10 stones.

With the fertilizer factory destined to be built in the future, there is absolutely no problem in reaching 10 stone in two seasons a year.

The current grain output of the Ming Dynasty is calculated according to the upper field, and one acre of land is only six stones a year.

Hybrid rice combined with fertilizer factories can reach 20 stones, which is more than three times the current one, and for the Ming Dynasty, which was still in an agricultural society, it was equivalent to three times the territorial expansion of the entire Ming Dynasty.

Zhu Shun thought of the vast Ming Dynasty, which had done nothing, and had expanded its territory three times because of two inventions, and couldn't help but feel a little numb: "Science and technology are really the first productive forces." ”

However, in order to complete these two things, guiding Song Shihui and discovering new invention geniuses is the most urgent task at present, and it is also second only to the manufacture of steam engines in Zhu Shun's heart.

After Zhu Shun was full of wine and food, he went back to his thatched hut to sleep, and several elders had not finished drinking, especially the old lady Song had just come to the momentum, and the wine was gone.

The old lady Song called the family waiting at the door, and asked the family to move a few more urns of Jiannan to burn the spring, and be sure to drink the wine to the fullest.

Woke up the next day, Zhu Shun took Song Shiyi to continue to study the flying shuttle loom, in the past, the Jin merchants and the Donglin Party always took the initiative to calculate Zhu Shun, this time Zhu Shun wanted to use the flying shuttle loom, calculate the Jin merchants, how to say that the eight Jin merchants will become the seven Jin merchants.

The overall framework of the Song's flying shuttle loom is already available, and the next step is to finalize a few small details, and the Song's flying shuttle loom can be put into production.

The problem that the shuttle is easy to slide off the wooden board is easy to solve, Song Shiyi chiseled a groove in the middle of the wooden board, and the shuttle will not slip off if it moves in the groove.

The problem of the sheng spring is not easy to solve, Song Shiyi successively replaced the copper sheet and the iron sheet are unsatisfactory, the copper sheet bends up after a few hits, and can not continue to be used.

Iron flakes don't bend, but they can easily break, so you have to try again and again with other materials.

I tried a lot of materials in a row, but they were always unsatisfactory, so that the research of the shuttle loom fell into a dilemma.

Zhu Shun walked up to Song Shiyi with a junior high school physics textbook, and couldn't help laughing when he looked at him scratching his ears and cheeks.

Pretending to be a passing by, the textbook in his hand suddenly fell to the ground and smashed on the shuttle.

There were six or seven shuttles of different sizes and materials inserted in the land, and the junior high school physics textbook happened to be smashed on an iron shuttle.

The thin paper smashed against the sharp shuttle, and the paper should have been pierced on the spot, but instead of being pierced, the paper smashed the iron shuttle deeper.

Song Shiyi just watched this scene, ordinary people must not think of anything from this, Song Shiyi is different, he is a world-class genius.

Staring at the junior high school physics textbook composed of iron shuttles and a pile of thin paper, the eyes that often dripped and turned turned into a dull state again.

After half a day, Song Shiyi picked up the junior high school physics textbook and ran away, and did not come back for a day and a night.

Just when Zhu Shun was about to go to find Song Shiyi, Song Shiyi, whose eyes were bloodshot, came back, holding two things in his hand, and ran to the pedal loom.

Zhu Shun looked at these two things, and finally understood the weight of a world-class genius: "According to the plan, according to the phenomenon of Shiyi smashing on the iron shuttle according to the textbook, it should be to fold the sheng spring. ”

"After the folded sheng spring, the spring was invented, but I didn't expect this kid to invent the spring directly."

The two things in Song Shiyi's hands were two springs made of copper.

Two copper springs are placed at the two ends of the groove, and the shuttle hits the copper spring, which first solves the problem that the sheng spring is easy to break.

Secondly, it alleviates the problem that the shuttle shuttles in the groove, and the friction is too large and slows down.

The weaving speed of Song's shuttle loom is all about the speed of the shuttle, and if the shuttle speed slows down, the weaving speed will also decrease.

The shuttle speed is a soul problem for the Song's shuttle loom, which determines the efficiency of the loom.

Mitigation is far from enough, and this problem must be solved once and for all.

The friction problem was originally the most difficult problem to solve, but Song Shiyi had already come up with a solution to solve it, and he didn't need Zhu Shun's guidance.

Song Shiyi took out a new iron shuttle from his arms, and the surface of the iron shuttle was polished very smooth.

The shuttle in the shape of a small boat has a small square hole at each end, and a small bead is placed inside.

Song Shiyi picked up this real shuttle and shook it in front of Zhu Shun: "Sir, look at how this shuttle is." ”

Zhu Shun had seen the prototype of the shuttle invented by the watchmaker Kaye in the book, and the shuttle in Song Shiyi's hand was very similar to the Kaye shuttle, which was a little different.

The shape of the shuttle is more in line with the principle of mechanics.

The problems of the track, the copper spring, and the slide ball are all solved, and then the last problem remains, the hitting problem.

The shuttle moves in the groove of the track, and it is no longer possible to push it by hand, so a more advanced mechanical component is required.

Song Shiyi designed a lot of plans for this hitting problem, and tested them one by one, and on the day of the summer season, he tested the best plan.

On the crossbar above the groove of the track, a wooden hammer is hung on the left and right sides, and then a thin rope is used to attach the wooden hammer to the handle.

Just pull this handle to make the shuttle shuttle back and forth.

The tracks, copper springs, slide beads, and wooden hammers were installed on the loom one by one, and the Song's flying shuttle loom was completely formed.

Song Shiyi forcibly held back and immediately sat on the Song's flying shuttle loom for the first official operation.

A maid and a few servants were called, and a large bucket of hot water was prepared, and incense was burned.

After bathing, Song Shiyi did not wear the cotton placket that moved neatly, but changed into a wide satin right shirt and put on a square Dongpo hat.

Facing Zhu Shun's solemn long gesture, he sat on the Song's flying shuttle loom and pulled the handle.

For thousands of years, a slow-running loom.

From then on, run fast.

Zhu Shun stood in the fence yard and witnessed this historic moment.