Chapter 204 Electric bicycles are handed over to the state
After Dean Zhao finished the test, everyone present was vying for the chance to try it again.
Everyone who got off the electric bicycle gave Zhang Yu a thumbs up.
This electric bicycle is really convenient. Just step on the pedals and the speed will be far faster than that of an ordinary bicycle.
Although this speed is not as fast as motorcycles or cars.
But the advantage is that you don’t need oil!
There is a shortage of everything these days, not only daily necessities, but also oil and minerals.
A large part of the country's oil comes from imports, accounting for one-tenth of the national finance.
The emergence of electric vehicles will break this deadlock.
Dean Zhao is rich in knowledge. The electric bicycle in front of him reminded him of something.
Electric bicycles were first born in 1895.
At the end of 1895, inventor Ogden Bolton of Ohio, USA, applied for the first patent for an electric personal travel device.
By today's standards, this is an electric bike.
The emergence of this idea has changed mankind's concept of power for personal travel devices.
In Ogden Bolton's conceived design, the motor is located on the rear wheel hub.
The electric motor uses direct current with six poles.
It also includes a 10-volt battery and may require 100A.
Comparing data, the electric bicycle designed by Zhang Yu moved the electric power to the frame of the bicycle.
In terms of motor selection, it is much better than Ogden Bolton motors.
After all, with the progress of the times, today’s motors have far surpassed those of 1895.
The problem now is the patent issue. The patent for the electric bicycle is in the hands of Ogden Bolton, and the Americans will not be kind enough to transfer the patent to Zhang Yu.
This needs to be solved at the national level. You can apply for a national patent. As for the remaining issues, you can only leave them to the state.
"Zhang Yu, wait a minute and draw the drawings of the electric bicycle. I need to report it to the school leaders and the Ministry of Education."
"Okay teacher, I'll push the car to charge it first."
Zhang Yu installed the electric bicycle, returned to the dormitory, and began to concentrate on drawings.
Fortunately, the technical content of electric bicycles is not too high, and the speed of drawing drawings is much faster.
The next day, Zhang Yu came to the office with the drawings.
"Teacher, the drawings are finished, please take a look."
Dean Zhao put on his reading glasses and looked at these drawings carefully.
After confirming the completeness of the drawings, Dean Zhao nodded with satisfaction.
"Okay, leave the drawings to me, just wait patiently for the good news!"
"In a moment, you go to Lao Wang's place. Lao Wang has something to tell you."
"When you're done, just pack your things and go home. I'll let you know when school starts next year."
"Yes, teacher, teacher, you are tired."
Dean Zhao waved his hand and carefully put the drawings away.
Zhang Yu left the office and came to Dean Wang's office.
"Teacher, are you looking for me?"
Dean Wang looked up from his book and saw Zhang Yu coming, and his face was immediately filled with smiles.
"Here, Zhang Yu, come, come, sit, sit, sit."
Dean Wang put down the book in his hand and pulled Zhang Yu to sit on the sofa.
"Are you busy these days?"
"It's okay, not too busy."
"Teacher, what do you want from me?"
Zhang Yu said modestly.
"You are quite humble. We already know your results."
"Yes, we have made a breakthrough in personal power equipment, which is very useful for young people."
"However, next year, the teacher hopes that you can make some breakthroughs in mathematics."
The reason why Dean Wang gave Zhang Yu such instructions was because he was a little jealous.
After all, Zhang Yu, as a student of him and Lao Zhao, can be said to be quite good at mechanics.
But in terms of mathematics, we are still at the stage where we are standing still.
Except for some time ago, when the master and apprentice helped Xiaopang check the data, they had no chance to study together again.
Xiaopang, the majority is from the mechanical department, a part is from physics, and a small part is from mathematics.
Next year, Dean Wang’s ambition is to make a big breakthrough in the field of mathematics.
Zhang Yu is a key figure.
Zhang Yu also feels very sorry for Teacher Wang.
I have been working in machinery during this period, and there are very few people coming from the mathematics department.
"No problem, teacher, just come up with a topic next year. Whatever you need me to do, I will do my best."
"Okay, okay, then the teacher will keep it in mind, and you won't be able to refuse when the time comes."
Zhang Yu patted his chest and promised.
"Don't worry, teacher, a man speaks with spit and nails."
With Zhang Yu's guarantee, Dean Wang was particularly happy.
"Okay, okay, now that it's agreed, the teacher won't keep you any longer. Pack your things and go home early, have a good rest, and be prepared to be busy next year."
"Okay, I wish the teacher a Happy New Year in advance."
"Okay, okay, happy new year, hahahaha."
Zhang Yu came out of the office, returned to the dormitory, packed his luggage, rode his electric bicycle, and rushed home.
"Daughter-in-law, I'm back."
Mengyi and Mengxue walked out of the house and were immediately attracted by the weird-looking bicycle in front of them.
"Zhang Yu, where is your bicycle?"
"Whose car are you riding back?"
Zhang Yu deliberately moved his body to the side, revealing the whole car.
"Hahaha, how about it? Isn't this car handsome?"
Mengyi glanced at Zhang Yu and then at the weird car.
"It's okay, just like that, not as handsome as your bicycle."
"You haven't answered my question yet. Whose car does this belong to? Where is your bicycle?"
"Hey, isn't this it? Don't you look like it?"
Zhang Yu pointed at the electric bicycle and said.
Mengyi pointed at the electric bicycle and said with surprise: "Ah!? This is your car?"
"Well, this is my car."
"You, you, you, why did the car change like this?"
Zhang Yu felt that the cold and soothing weather did not mean this place.
"Let's go into the house first, and I'll tell you when we get inside."
Zhang Yu took down the luggage from the car, and Mengxue helped Zhang Yu take the luggage into the house.
After everything was placed, Zhang Yu sat on the sofa and started talking slowly and logically.
After listening to Zhang Yu’s explanation, the principles of electric bicycles.
Sisters Mengyi and Mengxue looked at Zhang Yu with admiring eyes.
In the past, I felt that Zhang Yu stepped from a worker to a university and became a college student. His status as a college student alone was enough to be envied.
When a brand-new little invention is placed in front of you, what you gain is not envy, but worship.
After Mengxue heard Zhang Yu's explanation, she couldn't help it anymore and asked Zhang Yu.
"Brother-in-law, you are so awesome!"
"Can I ride it? I also want to experience it."
Of course there is no problem. Good things are meant to be shared, especially with your own family. You must try them yourself.
"Okay! No problem."
"Okay, okay, the snow has just fallen and the ground is so slippery. How can I ride on it?"
"Mengxue, my brother-in-law invented this with painstaking efforts. There is only one in the country. What if it breaks?"
Not only Mengxue wanted to ride, but Mengyi also wanted to ride, but thinking that it had just snowed and the ground was very slippery, for safety reasons, it was better not to give it a try!
"Daughter-in-law, it's okay. I gave all the drawings and everything to the state. If it breaks, it's okay."
"Just let Mengxue ride for a while. If you don't ride far, just walk back and forth in the alley at the door a few times."
As soon as he said it, Zhang Yu helped Mengxue push the electric bicycle outside the gate.