After his father found out, he never said a word to his old man, and then he didn't see his old man again until his eldest brother came out, and he himself died of illness......

If it weren't for the fact that grandpa got into trouble because of a batch of wood, and the eldest brother helped him solve the matter after knowing about it, they probably wouldn't have reconciled in this life.

He thought that his grandfather would think things through when he got old.

I never thought he was still pedantic.

Now he humiliates his friends in front of him.

"Du Liang, I'm fine. Isn't it just being said twice? Don't be angry, that person is your own grandfather after all, we are not cornered, we will go back now, you wait for me outside, I will go in and tell him myself. ”

Jiang Tian could feel the anger emanating from Du Liang's body.

She opened her mouth to persuade a few words, and as soon as she finished speaking, she heard Du Liang say: "Jiang Tian, I was wrong, I shouldn't have teased you like this and led you to feel my grandfather's violent temper, but I didn't expect that 20 years have passed, and he still looks down on women as before." ”

"You don't know what he did to my mother before, forget it, I'll fix your beater, let's go back now." Du Liang pulled out these words, turned around and was about to walk in the direction of the carriage.

Jiang Tian hurried to catch up.

"Du Liang, you really know how to repair the beater, but I'm in a hurry to use the beater to get sweet potato flour? Please don't play tricks on me again..."

Du Liang stopped, "Jiang Tian, how can I say that my ancestors were all carpenters, and my father had already passed on the skills of this carpenter to me and my brother. ”

"It's just that my brother loves to read, and finally went to the Ministry of Industry, and I! I like to be free, so I went to be a dart master, don't look at me like this, I tell you, I'm not worse than my brother at all, and even I'm afraid of myself when I'm serious! ”

"Poof, hahahaha......" Jiang Tian's inexplicable self-confidence made him laugh and cry.

Think about it too.

From the time she knew Du Liang until now, he hadn't passed by.

But judging by his expression, he shouldn't be playing with himself this time, so he simply believed him again.

So Jiang Tian spoke generously, saying that as long as he found out the problem of the beater today, he would give him a hundred taels of silver for his hard work.

"But as you said yourself, I used to take only one tael of silver from you, and now you have to offer to give me a hundred taels of silver. Jiang Tian! Seeing that you are so righteous, then I will let you see what Du Liang's ability is! ”

Jia Yi, who was following Jiang Tian, saw his arrogant expression at the moment, and his heart was even more puzzled.

According to his current observation of Du Liang, she is a stinky little ghost who loves to brag and has no ability.

However, since Jiang Tian trusts him, let's see him ugly again.

If he can't fix the beater after he goes back this time, he will be embarrassed.

Back at Jiang's dim sum shop, Du Liang asked for pen and paper for the first time, and quickly drew the design drawings of Jiang Tian's beater.

"God! The whole picture of Du Liang's beater can be drawn, and the parts are not bad at all, you can have this memory! ”

Jiang Tian's praise is very useful to him in the end, not his boasting.

If he hadn't been stubborn, he wouldn't like to be an official. He has long learned from his brother to serve the country!

"Jiang Tian, I have already weighed the weight of your parts with my hands just now, and you have added a gear to this wooden arm to relieve the pressure caused by the wooden stakes, but by doing so, you have invisibly caused more burden on the entire wooden machine below......

When Jiang Tian heard this, he finally realized that he really understood his own design.

I listened patiently to his analysis.

"My opinion is to replace the wooden board on this side of the machine with Suizhou hardwood, add about 5 centimeters here, and it is best to make a movable gear for the wooden arm, so that if there is wear and tear in the future, it can also be disassembled and replaced from a piece. Finally, on this side, you can add a piece of buffalo leather back tendon......"

Hearing him say this, Jiang Tian suddenly thought that a big reason for her failure this time was because the synergy between the gears, the wooden arms and the wooden stakes was not in place.

In addition, gears made of wood are easy to wear, and generally ancient craftsmen will apply a layer of oil on them, some are lacquer oil, and some use rapeseed oil.

She was in a hurry to verify it, so she called for a touch of rapeseed oil.

Originally, it was supposed to wait for the gears to dry before they could be installed, but everyone was waiting to see the effect.

She asked Ayi to install it for testing.

Rapeseed oil remains on the undried gear, which can easily cause the oil that has not been immersed in the wood to be thrown out when the gear is rotating, which affects the axle speed to a certain extent.

According to her current calculations, the number of revolutions of the gears at that time should be 5~6 times faster than the normal speed she expected.

Therefore, the pressure on the rocker arm and the base is huge, and there is an imbalance between the force and the force.

Finally, the beater is scrapped directly......

Finally figured out the reason for his failure this time, Jiang Tian immediately thought of a remedy.

"Du Liang, I have an idea, if I add a movable pulley to this piece, will it ...... if I add a fixed pulley to the other end of it?"

Jiang Tian was anxious to know the answer, and directly told Du Liangyi his thoughts.

Du Liang was overjoyed: "Jiang Tian! I finally understand why Big Brother said you are a genius! You're too powerful, and you can see the crux of the problem right away, and indeed if you change it as you say, it will speed up the rotation of the axle and reduce the pressure on the wooden rocker arm......"

The shopkeeper and the shopkeeper were excited to see the two of them.

Realizing that they couldn't help if they continued to wait here, they went back to work.

Jia Yi still wants to protect Jiang Tian, so he can only stay.

This does not see the clear space and makes excuses to leave.

I couldn't help but sigh in my heart: Sure enough, the interlaced lines are like mountains, and he can understand the words spoken between them, but he doesn't know what they mean when they are added together.

Fortunately, it didn't take an hour later.

The two of them drew a new design.

Du Liang was also excited.

said that Ming'er would bring a few brothers over and help her get the new beater.

Before leaving, Jiang Tian gave him a hundred taels of silver according to the previous agreement, and then handed him a silver ticket of ten thousand taels alone.

"Ahh Even if you use high-quality wood, you won't need 10,000 taels of silver, and at most 50 taels of silver will be able to repair it for you. Listening to Du Liang's words, Jiang Tian explained to him.

"I estimate that it will take at least half a month to build such a beater, these are the wages I give you, you help arrange food and accommodation, and the wages are also deducted in it, if the money to buy wood is not enough, you can withdraw it from the shopkeeper at any time......"

Du Liang happily took the silver ticket, he liked to do business with rich people like Jiang Tian, but he was much more generous than the local wealth.