Daming 1805

Chapter 209 Daniel Bernoulli
Zhu Jingyuan's position in Daming is the governor of Dashi, Daqin, and Mozhou in military, political and foreign affairs.

Therefore, the direct notifications are basically things in these areas.

But there are some special cases.

For example, the progress of aviation research in various countries in the world, the latest warship design and construction direction.

The information that Zhu Jingyuan is particularly concerned about will also be sent here specially.

After Zhu Jingyuan flipped through a few messages, he looked at a telegram with a surprised expression.

"Swiss scholar Daniel Bernoulli and his three sons made a relatively mature flying machine in France?"

"Daniel Bernoulli, too? Is this the descendant of the Bernoulli who wrote Fluid Dynamics?"

Zhu Jingyuan generally remembered that Daniel Bernoulli, who proposed Bernoulli's principle, was not a person of this era.

This famous mathematician and physicist in history received a "Master of Arts" degree at the age of 16 and a "Medical Doctor's degree" at the age of 21. Later, he became a professor of anatomy and botany, as well as a professor of physics. professor of science.

This experience is too outrageous, coupled with the special background of the Bernoulli family, and his most important Bernoulli principle, let Zhu Jingyuan roughly remember what era he was from.

Now he must be dead, he was from the last century.

So this Daniel Bernoulli is not the Bernoulli in history, but he is probably the younger generation of the other party’s family

Because his surname is Bernoulli, and Taixi people like to use their elders' names for their children.

What made Zhu Jingyuan more concerned was that this second-generation Daniel Bernoulli, he brought his three sons to make a plane?

Zhu Jingyuan was very curious about whether he was directly influenced by his family.

In Zhu Jingyuan's previous life, popular science articles often used Bernoulli's principle to explain why airplanes fly.

Zhu Jingyuan, who is more interested in aviation, was deeply impressed by this.

Bernoulli's principle is a key principle in fluid dynamics.

The faster the fluid flows on the same level, the lower the pressure on the surroundings.

The air above the wings of the aircraft has a fast velocity and low pressure, and the air below the wings has a slow velocity and high pressure.

So the plane was lifted.

This is the most straightforward explanation.

The Bernoulli principle in this world is still proposed by Daniel Bernoulli 100 years ago.

At that time, the direct influence of Ming Dynasty on the mainland of Taixi was still not very strong.

Emperor Shizu did not mention research in this area.

Daniel Bernoulli is still a famous mathematician and physicist in Tessie.

Now in the team of the second-generation Daniel Bernoulli, there are people who keep in touch with the Daming West Factory.

There are many teams from western and western countries who study flying machines and researchers who study the principles of flight. Many of them are from the western factory.

Now the research progress of these personnel can basically be roughly grasped by the West Factory.

Zhu Jingyuan was a little surprised by this situation.

If the capabilities of the Western Factory are so strong, it would not be difficult to dig out technologies from Western and Western countries.

So, even if it is not driven by itself, even if Daming's research and development capabilities are really failing, as long as the West Factory still maintains this energy, then Daming's actual technology will not be outdated.

Xichang should be the strongest spy organization in the world today.

The Dongxi Factory transformed by Emperor Shizu was the earliest systematic, professional and modern spy agency.

There should be no professional spy agency in this world that can compare with them.

According to the report compiled by Xichang, this second-generation Daniel Bernoulli is not an ordinary craftsman.

His research started from theory, rather than simply doing physical tests.

Even, his actual test is to verify the theory.

His theoretical research is very solid.

It may even be more in-depth than the research of Ming craftsmen before Zhu Jingyuan directly pointed out.

He has summarized theorems and formulas for calculating wing lift.

That is actually the "Kutta-Zhukovsky Theorem" of Zhu Jingyuan's previous life.

The Tessie of this world may also be called Bernoulli's theorem.

In the Ming Dynasty, it was directly called the "Lift Theorem", and Zhu Jingyuan had already guided them to come up with it in the communication with the Ministry of Industry.

Zhu Jingyuan copied it, but this Bernoulli completed a complete theoretical research by himself.

The discovery of the Kuta-Zhukovsky theorem is one of the most important nodes in the practical application of flight theory.

Let humans finally determine from a theoretical basis that flying machines are feasible.

Coupled with the "Navier-Stokes equation" and "Bernoulli equation", Newtonian mechanics and flight principles are finally opened up.

Of course, the theoretical completion does not mean that a flying aircraft can be made immediately.

They can only be verified by calculations in the early days, and the design of bird wings is theoretically feasible.

The bird wing design is indeed feasible, and it can indeed fly.

As long as the angle of attack is suitable, as long as the engine power is sufficient, a pure flat steel plate can fly, let alone a bird's wing.

But that's just ideal.

In the case of very limited technical conditions and very limited engine power, it requires long-term and continuous exploration to make the simple test aircraft made by folk craftsmen fly normally.

What Zhu Jingyuan gave to the craftsmen of Ming Dynasty was the airfoil most suitable for low-speed conditions, so the plane took off directly.

This Daniel Bernoulli tested a large number of airfoils and found a wing shape that is more suitable for low-speed conditions.

This is the typical convex-up-down-flat structure used by Zhu Jingyuan.

More importantly, he got two smuggled small gasoline engines originally made in Ming Dynasty.

Those two engines were probably eliminated by Daming.

Thanks to Zhu Jingyuan's guidance, the power of Daming's internal combustion engine began to soar last year.

At the beginning of the year, the aircraft engine was still in the tens of horsepower, but at the beginning of this year, it directly became hundreds of horsepower.

The engine power of the car has caught up with the previous tanks.

The soaring upper limit of engine power led to the reduction of Ming's control over low-level engines.

After the original engines of some cars and machines are eliminated, the probability of being sold abroad has increased.

Bernoulli installed Daming's engine on the plane he designed, allowing the plane to successfully fly over ten meters.

He is going to the French Patent Office to apply for a patent and is preparing documents.

While reading the information, Zhu Jingyuan thought about various possible situations, and made a decision after reading it.

Immediately rule the West Factory in France, and immediately apply for an aircraft patent.

Due to the arrangements Zhu Jingyuan had made long ago, the relevant personnel already had the documents prepared in advance.

There are attachments to Zhu Jingyuan's patent documents registered with the Ministry of Industry of the Ming Dynasty, as well as a certificate issued by the Ministry of Industry and a statement by Zhu Jingyuan himself.

At the same time, there are crude aircraft parts that can be pieced together to make Zhu Jingyuan's first test aircraft.

The simplest, the simplest aircraft with only two wings, two rudders, one engine, and two propellers.

In addition, remind them that they can go to Prince Charles of France for help and take the route of the upper class of the ruling class.

The goal was to intercept Houbernoulli's French aircraft patent.

While arranging the task, Zhu Jingyuan personally wrote another simple telegram and sent it to Prince Charles.

Thank you again for your help and support to Dashiguo's high-end clothing industry in France.

Then immediately ask the other party to help with the patent application.

After sending the telegram, Zhu Jingyuan sat at his desk and thought about it for a while.

Zhu Jingyuan felt that the success rate of cutting off patents at a critical juncture should not be high.

Although I was well prepared, the relationship between Daming and France was not that good.

The French favor research done in France, and it is only natural that they favor Thais.

Of course, Prince Shire cannot be completely trustworthy.

After all, he is the prince of France, and he must also consider French interests.

He and the French courtiers around him must be able to see the great prospects of aircraft in the future.

He should have a basic understanding of aircraft researchers in France, and he should know that Bernoulli is about to succeed.

Even if you didn't understand it at all before, after receiving your own request, you should go to understand it specially.

If you know that Bernoulli's research has been basically completed, you may not accept your application easily.

The other party can claim that the other party has received a similar patent application, and then put Bernoulli's in front of it.

Wait until your own time, and then reply to yourself that the patent has been issued.

Facing their operation, I don't seem to have any good way to deal with it.

The natural requirement is that both parties take a step back and own patents with Bernoulli at the same time.

Using their own patents each other does not constitute infringement or breach of contract.

(End of this chapter)