After the court meeting, there was nothing to do until the New Year, so he came to Daming Academy, which he hadn't been to for almost a year.

He first walked around the campus accompanied by Cai Dafa and saw that the college was expanding again.

"How's this year's admissions?"

"Dean, because the first batch of students is about to graduate, the college has been increasing the number of recruits every year in the past two years, and I hope that the number of students in the college will be stable after the first batch of graduation next year, so there are more school buildings and classrooms needed, so the college has built a lot of buildings in the past two years."

"You can decide this yourself, now that the academy has more income outlets, and the income and expenditure can be balanced, you can use the silver taels allocated by the imperial court to the academy every year for research and development and improving the campus environment."

"Yes, Dean! In fact, there will be a surplus in the income and expenditure of the college in the past few years, and the imperial court does not need to allocate additional funds. ”

"R&D is a money-burning business, and with the deepening of scientific research and the increase of projects, it will not work with the strength of the academy alone."

"Yes!"

"I see that many places in the academy have installed devices that look like official hats, what is that?"

"Back to the emperor, that's the latest achievement of the academy, the light bulb."

"What?!" Gao Yiming swallowed a mouthful of saliva with difficulty, it was the first time he had seen a street lamp bulb bigger than his head, such a strange street light bulb, he had only seen it in his life, but he didn't say anything, the road of science must be taken step by step, so that it can go steadily and go long-term. Besides, no one stipulates that the light bulb must be the scoop-shaped of the later generations.

"How bright is this bulb?"

"It's much brighter than a candle, but because it's daytime, there's no electricity, so I'll see it at night."

"Where's the generator?"

"It's on the river outside the academy, if the dean is interested, I'll accompany you to have a look."

Gao Yiming immediately agreed.

After walking two or three miles out of the college, I saw a waterwheel with a diameter of four or five meters on the wide river on the side of the college, one-third of the waterwheel was in the water, and one end was connected to a large house on the bank by a shaft.

Gao Yiming saw that the door was unlocked, so he pushed the door and walked in, and there was a gentleman inside, with more than a dozen students of different ages teaching at the scene.

Seeing Gao Yiming come in, Mr. Na immediately beckoned the students to kneel down and salute him.

Gao Yiming said happily: "Get up, get up, I came here today to see your invention, the idea is really ingenious."

"Dean Xie praised, speaking of which, this idea was put forward by the dean, and we just turned your idea into a real thing." The gentleman said humbly, this gentleman Gao Yiming remembered, his name was Ai Sheng.

"Mr. Ai, you don't have to be humble about this, this is something you developed with your students to overcome difficulties, work hard, and when the day comes to the electric lights that can be used by the people of the whole country, you and your students will go down in history as household names." For gentlemen and students who are knowledgeable and can endure hardships and study, Gao Yiming respects them very much.

"Thank you Dean for your encouragement, you are a pioneer in our electric power research, I don't know what you can guide us?" Ai Sheng asked Gao Yiming.

Originally, he didn't want to tell him the principle of the power station too early, because he was afraid that they wouldn't be able to digest it because of too many plugs, but he didn't expect that this old master would test him in turn.

So after thinking about it for a while, Gao Yiming said: "I just looked at our generator, and it is very clever to drive it with a water wheel, but this is just using the power of the water flow, and the restrictions are relatively large, and the location is not easy to choose."

"You're right, Dean, this place took us a long time to find, and then we put a lot of effort into renovating it before it can be used."

"Well, in fact, the flowing river water not only has the kinetic energy that we can see every day, but also the potential energy that we can't see, and we all know that the water flows to the ground, because the height difference between the upstream and downstream of the river is not obvious, so the potential energy is not easy for us to find, but it is not obvious at the waterfall."

After Gao Yiming's pointing, Ai Sheng immediately opened his mouth: "Yes, the gentle flowing river, after encountering the waterfall, instantly becomes irritable, its power can crush the hard stone, it turns out that this is the potential energy of water, then this potential power far exceeds the kinetic energy of water."

"In fact, the energy of water flow also comes from potential energy, water flows to a low place, you think about it, but the drop is small, and the potential energy is also small."

"What the dean said is very true, it is better to listen to your words than to read a book for ten years."

"Haha! Bring the pen! ”

Some students immediately ran to the side and lifted the table where the pen, ink, paper, and inkstone were placed.

Gao Yiming brushed and brushed for a while, and said: "This is called a turbine generator, using a canal to introduce the turbulent river water into this funnel-like device, the water leaks from the outlet of the funnel, and it will form a storm-like water vortex at the outlet of the funnel, and we install the generator wheel here, so that the rotation speed of the water turbine will be faster and more electricity will be generated."

There is a way that connoisseurs know whether there is one as soon as they make a move, and Gao Yiming's words made the gentlemen and students at the scene have a feeling of sudden enlightenment.