Chapter 9 Venture Capital

Then Su You connected the marker point of each inch of the right-angled side at the bottom with the other forty-five-degree angle vertex of the right-angled triangle. Together with the hypotenuse, you get nine separating diagonals.

Finding a new ruler without a scale, Su You prepared to mark the precise location of each inch on the ruler by comparing the points obtained from the drawing.

An old craftsman, estimated to be the foreman, hurriedly said, "Xiaolang, I'll do this." ”

Su You smiled slightly: "Then there is Lao Lao." ”

The old craftsman was skilled, and soon, Su You got a ruler marked to the exact inch.

Su You used this ruler to move up along the right-angled edge, and when the scale was moved to the side of the diagram and the distance between the outermost hypotenuse was exactly one inch, the eleven diagonal lines were exactly ten points equal to the inch on the ruler.

Pull the horizontal line and you get an exact 10 points on the chart.

The craftsmen began to respect Su You's ability, and as soon as the connoisseur stretched out his hand, he knew if there was any, especially the foreman, and shouted "Wonderful!" Wonderful! ”

After speaking, he came to take over, marked the scale of each minute with a sharp tool on the ruler, and then continued to imitate Su You's move the ruler up, frowning and said: "Little sir, I can't continue to do it, it is theoretically feasible to divide it into ten parts, but the needle marks are next to the needle marks, and it cannot be marked." ”

Su You took out another drawing and drew a picture in the same way, but this time the right-angled side length was only nine inches.

The foreman pointed to the new right-angled triangle: "Then this scale is nine tenths of an inch, and the little prime minister wants to get nine tenths of a tenth?" ”

Su You smiled: "Exactly, after nine to ten, the centimeter can be displayed on this nine-minute scale." ”

The old craftsman only felt that his scalp was fried: "This ...... How ingenious is that? How? ”

Su You first got the scale of nine points, and said to the craftsmen: "The kid can only theorize, and if he starts to make a mess, he has to work for the old man." ”

The old craftsman took the lead: "It is necessary, how dare you work such a rough job, Mr. Xiao, the old man comes!" ”

Su You smiled: "Then it's troublesome for the old man." ”

Then things were much easier, Su You drew a drawing of a vernier caliper, explained the main points to the old craftsman, and soon a beautiful Qinggang wood strange ruler appeared in Su You's hand.

Su You looked at the calipers who could see the light and was also very convinced: "The master's skills are excellent, which can be regarded as the peak." ”

The old craftsman waved his hand again and again: "My family has three generations of carvers, and the joinery is a family handicraft. ”

Rao is like this, but he doesn't dare to boast that he is not bad, and he should not be praised by Mr. Xiao. Now this can only be a temporary patchwork model, and I'll make one for Mr. Xiao another day. ”

Su You said with a smile: "Deserve it, you deserve it, this pure manual and engineering work are two different things." ”

After speaking, he introduced to the craftsmen: "Look, the middle one is the main ruler, and the one that can slide below is the secondary ruler, and the scale on the secondary ruler can be walked on the main ruler, and the mark on it is called the vernier by me." ”

"There are two clips in front of the vernier to measure the width of the object, so this ruler, I call it a vernier caliper."

The old man nodded again and again: "This name is very appropriate." ”

Su You took a wooden block and said: "The key to this caliper is that when the sub-ruler reaches the end of the main ruler, the starting scale of the two feet is uniform, and the inner surface of the two calipers of the clip is attached to the seam. ”

After speaking, he looked at the ruler and shook his head: "The craftsmanship of the old man is really exquisite." ”

The old man's heart was like a cat scratching: "Little sir, don't praise me, I have no place to put this old face, why don't you show us how to measure to this level." ”

Su You took a card of the wooden block and said: "Look, the starting point of the scale of the main and auxiliary rulers is called the zero point, and the position of the main ruler shown at the zero point of the secondary ruler shows that the width of the wooden block is more than one inch and five minutes. ”

The craftsmen all nodded, this is simple.

Su You said: "Then how much? Let's look at the sub-ruler, let's look at the two ends of the sub-ruler, and the position corresponding to the scale of the main ruler, is it gradually approaching a point? The closer to that point, the more the scales on the main and auxiliary rulers tend to coincide? ”

A craftsman's sharp eyes: "Yes, yes, the sixth scale above the secondary ruler almost coincides with the previous scale on the main ruler." ”

Su You said with a smile: "This uncle is right, this scale shows the centimeter, and the width of this piece of wood is one inch and five minutes and six centimeters!" ”

Boom - the workshop was suddenly full of people, this is the first time everyone has seen a ruler that can be accurate to the centimeter!

In the cheers of everyone, the old craftsman was indeed full of doubts: "Little sir, what is the truth of this?" ”

Su You said: "This involves arithmetic, and I call this problem chasing the difference. Everyone knows how to add and subtract arithmetic, right? ”

Everyone nodded like pounded garlic, this will be.

Su You said: "It's going to be easy, come and look at the picture." ”

After that, Su You began to explain the principle of vernier calipers, and after some explanation, Su You concluded: "Look, let's assume that the width of the caliper is now one inch, three and nine centimeters, and calculate it little by little, at the position of the ninth point on the sub-ruler, the distance difference between it and the scale of the main ruler is exactly zero, and the difference is caught up." ”

"With this feature, we can enlarge the unit of centim on the scale of the sub-ruler to get an accurate centimeter."

A group of craftsmen can't help but admire the five bodies, it is one thing to be able to make things, and it is another thing to be able to explain the truth thoroughly.

This shows that Mr. Xiao is not blind, everyone understands the truth when he hears it, but if he has to rely on his own imagination, it is absolutely impossible to get such a clever solution even if he breaks his head.

Wait, Mr. Little looks like he's only five years old? At his age, wouldn't he live to the belly of a dog!

The old foreman made a deep sigh to Su You and said: "With this ruler, my Meishan Bookstore, hehehe, from today onwards, I will be able to beat Hangzhou Jianyang, and Mr. should be worshiped by the old man." ”

Su You hurriedly shook his hand and said, "Don't dare, you are an elder, but you can't do it." ”

The two of them were in the guest room, when they heard a light cough behind them, and when they turned their heads, it was Cheng Wenying who came.

Cheng Wenying saw Su You and Banniang mixed in a group of craftsmen, he frowned slightly at first, but didn't say anything, and only said to the old foreman: "Old Yu, I can hear the noise of the workshop in the inner courtyard, don't you want the rules?" ”

The old foreman hurriedly surrendered his hand: "Congratulations to the owner, great joy, Mr. Xiao has invented an amazing thing!" ”

Cheng Wenying asked, "What is it that makes you so surprised?" ”

The old foreman handed the ruler to Cheng Wenying: "Look, owner, this is a magic ruler that can be measured to the centimeter level!" ”

Cheng Wenying was shocked: "How is it possible?" ”

After the old foreman showed the ruler, Cheng Wenying also felt that the design principle of this ruler was extremely simple, but this ingenuity was unbelievable, and he couldn't help but look Su You up and down.

Su You bowed his hand to Cheng Wenying and said, "Uncle in-law, in fact, this ruler still has a lot to improve......

Cheng Wenying grabbed Su You's wrist and grabbed the vernier caliper with one hand: "The virtuous nephew and I went into the inner courtyard to talk carefully." ”

Even Banniang didn't care about it, Banniang pursed her lips and smiled, and obediently followed from behind.

Entering the inner courtyard, Su You said to Cheng Wenying: "Uncle in-law, this caliper ......"

Cheng Wenying sighed and said: "Virtuous nephew, I will enter the senior level first, and then make a policy. As for the rest of the miscellaneous subjects, it is a promotion level for others, but it can be for you...... The virtuous nephew is smart, and he should focus on poetry and books, and he must not be clearly calculated as the way to enter the body, which is a self-mistake. ”

Su You's impression of Cheng Wenying is getting better and better, and he got up and said: "Little nephew understands, these are ordinary and blind miscellaneous studies, and those who are not in a matter of course will take scripture as a career when they are enlightened." ”

Cheng Wenying breathed a sigh of relief: "That's good, that's good...... I just heard you say, this thing is still very useful? ”

Su You told Cheng Wenying what Banniang thought, and Cheng Wenying sighed: "Banniang, a family, shouldn't be so estranged, there is something to tell Weng's son-in-law, or tell me." ”

Banniang couldn't help but have red eyes after hearing this, and hurriedly bowed her head to apologize.

Su You hurriedly laughed and said: "Uncle Hugh blames Banniang, the Cheng family is a big family, Banniang is also afraid that people will say that she is frivolous, and I want to inform you after the work is completed, so it's good to talk about it now." ”