My father Zhu Gaoxu

Chapter 714 Another meaning of Helen

In the swaying carriage, Helen hugged her knees and squatted in the corner of the carriage without saying a word. Zhu Zhanhe's previous prediction that Venice would be defeated directly made her shut up. Now her mind is full of worries. own hometown.

"Don't be lazy, come and make me tea!"

Zhu Zhanhe, however, showed no mercy at all and ordered again.

The autistic Helen was interrupted and immediately glared at Zhu Zhanhe angrily, but she still did not dare to disobey the order and obediently came over to help him make tea.

It's just that although Helen had learned how to make tea from Wang Siyan, she was still not proficient. After finally making tea, she spilled the tea when she poured it, almost burning Zhu Zhanhe next to her.

"You are clumsy, otherwise you should learn some rules from Wang Siyan!"

Zhu Zhanhe said helplessly, compared to Sun Ruowei back then, Helen was far behind.

"I'm a noble, not a maid. It's a complete waste of my talents for you to keep me doing these menial tasks!"

Helen defended dissatisfiedly.

"Oh? Besides serving tea and pouring water, what other talents do you have? You don't mean to say rub your back, do you?"

Zhu Zhanhe joked again.

"I am a noble. I have received a good noble education since I was a child. I am proficient in history, poetry, mathematics, etc. My value is definitely not comparable to that of a little maid!"

Helen felt that her personality was insulted and once again emphasized her status as a noble.

"Oh? You still know math?"

Zhu Zhanhe finally showed a surprised expression when he heard this. There are many women in this era who can settle accounts, but there are very few women who dare to say that they are proficient in mathematics.

"Of course, mathematics is the subject that I am most interested in and the most proficient in. Do you know the other meaning of my name?"

When Helen said this, she straightened her back, revealing her moving curves. Although she was inferior to others, she still maintained a proud heart.

"Isn't Helen just a beautiful woman in myths and legends? Does it have any other meanings?"

Zhu Zhanhe also asked curiously after hearing this.

"Helen is not only the name of a beautiful woman, but also the name of a great mathematician in our history. He was also a great inventor who invented many practical instruments. It is said that our family is his descendant, so our family's People should learn mathematics from an early age!”

When Helen said the last words, her little face was raised high, full of pride.

"Is this Helen famous? Is he better than Pythagoras and Euclid?"

Zhu Zhanhe asked curiously.

He has never heard of the mathematician Helen's name, but it's not his fault, because the historical records of Helen are very vague. We only know the approximate era of his life, and there are several translations of his name. Some people call him Helen. Some people call him Hero.

"Pythagoras and Euclid are both the most genius mathematicians. Our ancestor Helen is definitely not as good as them, but he is also a famous mathematician in history. He has left many works and also A very famous formula was discovered and named after him!”

When Helen heard the names of the two mathematicians Pythagoras and Euclid, her expression froze for a moment. She did not expect that Zhu Zhanhe even knew these two ancient Greek mathematicians. His ancestors must have been better than Not as good as them, but in the end he still proudly introduced his ancestral ways.

"What formula is used to calculate something?"

Zhu Zhanhe asked curiously. "The formula discovered by my ancestors is called Helen's formula. It is mainly used to calculate the area of ​​a triangle. For example, we only need to know the three side lengths of any triangle to directly calculate its area."

Helen immediately told her ancestor's formula.

"So magical? Do you mean that you don't need to know the height of a triangle and can calculate the area using only three side lengths?"

Zhu Zhanhe was also surprised when he heard this. His mathematics mainly came from the contents of textbooks, and he didn't know much about the contents outside textbooks.

"Yes, Helen's formula is so magical. My ancestor was also a genius mathematician. He did not delve into theoretical mathematics like Pythagoras and Euclid, but he was committed to applying mathematics in practice. In addition to Helen's formula, he has many other achievements, which you may not even understand!"

Helen said with a contemptuous look at Zhu Zhanhe. She finally found one of her strengths, and of course she wanted to take revenge on Zhu Zhanhe. During this period, she was ridiculed by him a lot.

"Who says I can't understand? If you tell me Helen's formula, I want to see if your ancestor's discovery is true or false?"

Zhu Zhanhe said unconvinced.

"Okay, then you have to listen carefully. Helen's formula looks simple, but it is actually very complicated..."

As Helen spoke, she took the pen and paper in the car and wrote down a series of formulas. Although the symbols inside were Greek letters, it was not difficult for Zhu Zhanhe. After simply asking a few questions about the meanings of the letters, he I immediately understood the formula.

To put it simply, Heron's formula is to calculate half of the perimeter through three side lengths, then subtract the three side lengths respectively, and then multiply the three numbers obtained by the half perimeter, and finally take the square root to get Can find the area of ​​the triangle.

Helen also didn't expect that Zhu Zhanhe not only understood politics, but was also so proficient in mathematics. Unconvinced, she told her ancestor Helen's other mathematical achievements, but it still couldn't trouble Zhu Zhanhe.

In fact, this is normal. Zhu Zhanhe received a systematic mathematics education. In terms of basic mathematics, no one can compare with him in this era. Even Newton 200 years later is probably not better than Zhu Zhanhe. How many.

Finally, Helen saw that the mathematical achievements of her ancestors could not embarrass Zhu Zhanhe, so she secretly used the achievements of other mathematicians and pretended to be the achievements of her ancestors to embarrass Zhu Zhanhe, but it was still of no use. , come up with other more subtle solutions.

After a mathematical discussion, Helen was filled with frustration. She thought that although she was a prisoner, she would at least surpass him in knowledge. However, she did not expect that she was still no match for Zhu Zhanhe in what she was best at.

"How about it, are you convinced?"

Zhu Zhanhe seemed to see the frustration in Helen's heart, and immediately asked him triumphantly.

"Hmph, don't be proud. In addition to being an outstanding mathematician, my ancestor was also a great inventor. You will definitely not be able to compare with him!"

Although Helen was frustrated in her heart, she still refused to admit defeat.

"Oh? Then what shocking invention did your ancestor have? Don't tell me that it invented the glass mirror?"

Zhu Zhanhe teased.

When Helen heard about the glass mirror, she lost her momentum. She had seen glass mirrors in the Ottomans' place, and she had also seen larger glass mirrors in Zhu Zhanhe's bedroom. The Venetian's most important commodity had obviously been surpassed by the other party. .

"It's not a mirror. My ancestor once invented a steam ball that can use steam to drive a metal ball to rotate on its own without any other power!"

Helen said again.

Although she knew that this steam ball had no practical value, it was very magical, so she wanted to use it to save the face of her ancestors. Of course, in addition to this invention, her ancestor Helen also had many other inventions, such as fire extinguishers and water clocks. , water organ, etc., but they are not as magical as this steam ball.

But as soon as Helen's words came out, Zhu Zhanhe's expression became a little weird!
(End of this chapter)