Lin Wan looked at Jiang Lai, and was a little flustered and looked forward to it. Jiang Lai... liked her?

But, why?

But she saw Jiang Lai's silence again, and thought about what happened the day before Jiang Jikai and Gu Ya got married, so she calmed herself down. Then she smiled and continued to eat wontons. The wontons wrapped in fresh shepherd's purse tasted really good.

"I'll take you to school later." Jiang Lai ate the poached egg and then spoke.

"Okay, please trouble you." Lin Wan responded.

Jiang Lai shook his head and smiled, "It's okay."

In the end, both of them were eating wontons seriously and never mentioned the words of the stall owner just now.

...

It was night, Jiangyuan.

Jiang Yunting looked at his youngest son, and then watched his eldest son who was ordered by his younger son, carrying a blackboard, and then opened his mouth helplessly, forget it, brothers have a good relationship...it's fine.

"Let's just put it here!" Jiang Jikai clapped his hands and put up the blackboard, "But if you put this piece in your father's study, you don't know that you thought you were going to class!"

Jiang Lai thought about it, "There is no difference from class."

Jiang Jikai:...It's better to slip first!

"Brother, listen too, it has something to do with our future." Jiang Lai spoke and left Jiang Jikai.

"Then listen, keep on listening." Jiang Yunting then spoke.

Jiang Jikai:...No, I just want to hold my wife and feel sleepy.

Jiang Lai started to draw a simple person with bare hands on the blackboard. Since he had asked John and others to come together, he had to explain something to them.

If medicine wants to develop, of course, it is inseparable from examination equipment. Blood-related examinations have been gradually improving since the microscope, but the organ examinations have not yet been detected except for X-rays.

What he wanted was to tie this group of people to a chariot, and then try his best to support China in the next war, that's all. If you want to tie someone else to a chariot, it is not enough to just give kindness, but more importantly, the consistency of interests.

Not long after, Mark, Smith and John came and brought another person, Mr. Hart, who was in the Hart trade. John had greeted Jiang Lai in advance.

Jiang Yunting also had someone to have tea, so he closed the door and waited for Jiang to start the show.

"How does Mr. Smith feel these days?" Jiang looked at Smith, not very energetic.

"I didn't have the strength. I always felt hungry two days ago, but today... it seemed to be much better." Smith thought for a while and answered seriously.

Jiang Lai nodded, "Just get used to it."

"That's right." Smith nodded.

"Since that's the case, time is precious, I'll start." Jiang Lai took a chalk and pointed to the blackboard. There was only one outline and a human body plan with the main organs.

"Have you ever thought about what would happen if there was no war in this world and the future of democracy and freedom?" At the beginning, Jiang Lai first raised a question.

In the later world, the level of civilization is getting higher and higher, which is much better than the current era. Of course, dirty things are indispensable. At least... the people's lives are much better.

"Now, isn't there no war?" Smith was puzzled.

"The Japanese are holding my three eastern provinces of China." Jiang Jikai retorted.

Smith shrugged.

"Did you ever think about how far can the average life expectancy of human beings be increased to 80 years old or even 90 years old?"

So, everyone in the room began to look at each other, let alone the average life expectancy has increased to 80 years old? It would be good to live to 50 years old in this era.

"The existence of medicine was for human life and health at the beginning." Jiang Lai continued, "Whether Western medicine or traditional Chinese medicine is the case. Everyone knows that at the beginning of surgery, countless people died."

"But now, the mortality rate has gradually decreased, which is caused by the advancement of medicine."

"Whether it is a medicine, a device, or a device for inspection."

"If there is no war in the future, people's democracy and freedom, medical progress, human life expectancy will continue to increase... and in the process of increasing human life expectancy, there will be countless medicines, devices and equipment involved."

Everyone nodded in this regard. Indeed, the emergence of X-ray machines has also created a number of companies.

"So, what I want to do is to work with you gentlemen to fight for human health in the future."

Jiang Lai is not very interested in making money, but the people here are more interested in making money than him, so if you want to tie these people up, the interests will definitely be big.

"And, people always get old one day. Who can guarantee that they will never get sick in their lifetime? Can't get cancer?"

"Only the advancement of medicine can better protect the health of your gentlemen."

Smith nodded in agreement with this. He is now a problem and wants to live longer.

John was full of interest in his eyes. His wife had been in the hospital once. He knew that health was much more important than many things.

Even Mr. Hart, who was standing beside him, was moved by Jiang. He is in good health now, but he has other friends around him who have more or less problems.

"Look here first. I roughly drew a person, including important tissues and organs and blood vessel distribution." Jiang Lai began to point to the blackboard and explained, "At present, some of our examination equipment are X-ray machines, which can capture the development of human bones and other organs. I won't talk about the principle, but the invention of X-ray machines has made our medicine go further. It solves the situation where doctors cannot see the patient's body lesions, but... it has solved it, but it has not completely solved it."

"Some diseases cannot be displayed by X-ray machines at all, and the limitation is very large."

"Maybe you don't know where you are limited, so let me talk first." Jiang Lai continued, "The human body is an organic whole, divided into several systems, circulatory system, respiratory system, nervous system, motor system, reproductive system, urinary system, digestive system and endocrine system."

...

"For example, diseases in blood vessels cannot be displayed."

"For example, some tumors in the body with a density close to normal tissue are difficult to show completely. For example, Ms. Dana was hospitalized before. If there were more advanced equipment... there was almost no possibility of misdiagnosis."

...

"So, drugs are a major category, and the development of chemical industry has accelerated the development of various types of drugs."

“As far as I know, there is a paper in the New England Journal of Medicine that is enough to speed up the process of human medicine, which is now being thrown into a corner and moldy.”

...

"Everyone also knows that sound is generated because of vibration."

So, some nodded and some shook their heads.

Jiang Lai:...

"In the last century, Heinrich Rudolph Hertz discovered the existence of electromagnetic waves. In order to commemorate him, kids used Hertz as a unit of measurement, that is, the number of repetitions of periodic changes per second."

"At first glance, the sound has nothing to do with Hertz...but the sound is caused by vibration." Jiang Lai stretched out a circle of wool, stretched it tightly, and then pulled it. "Everyone decided, how many times did this wool just vibrate?"

Everyone: Why do you feel like you are listening to a physics class?

The problem is that some people don't understand at all.

"Okay, just a little bit more. Sound waves with the upper limit frequency of human auditory (about 20,000 Hz) are called ultrasonic waves, or ultrasonic. About twenty years ago, scientist Langzhi made a sandwich ultrasonic transducer with natural piezoelectric quartz and used them to detect submarines under the sea."

"Ultrasound, in different media, has different manifestations of production and research, and is expressed in amplitude, or grayscale brightness, etc...."

"And if this technology is used to detect the human body..."

"Wait!" Jiang Jikai interrupted Jiang Lai, "Isn't that possible to detect the submarine?"

"So, what I'm talking about is what it will be like if applied to human body exploration." Jiang Lai said in a deep voice.

"I roughly understand what Dr. Jiang means. What do you mean is that ultrasound can be used to detect human bodies?" John said, "But as far as I know, there is no such technology at present."

"Not bad, so we need to push, just like looking for Mr. Fleming." Mark responded with a rare sentence. Today he arrived at the Jiang family and listened to Jianglai's words, he was full of surprise and shock.

He did not expect that Jiang Lai's goal was to be the health of all mankind! Unlike businessmen like Smith, he is a reporter. Although he also likes money, he pursues the truth more!
Chapter completed!