Cathode rays are the flow of electrons formed by the electrons emitted from the cathode of a low-pressure gas discharge tube accelerated by an electric field. Plück discovered it in 1858 during a study of low-pressure gas discharges.

The above paragraph is on Baidu Encyclopedia.

John's understanding of cathode rays is limited to knowing that he is the key to the discovery of electrons by physicists, and at the same time the key to new technologies such as electron microscopes and televisions in the future, of course, it is also the key to the first Nobel Prize in Physics more than ten years later!

X-ray technique, a technique that John has dreamed of lately.

As a milestone in the development of clinical diagnostics, the importance of X-ray technology goes without saying, and more importantly for John, it is also the key to his ability to bring those "noble" patients into the hospital!

That's why after meeting Tesla today, John asked about it.

"Cathode rays?"

After hearing this word, Tesla glanced at John with a little surprise.

It has been nearly 30 years since cathode rays were discovered, and because of the needs of industry, many physical laboratories have cathode ray tubes, and Tesla is naturally no stranger to this. It's just that he really can't figure out why this Mr. Huntelaar in front of him is interested in that thing!

But......

After a slight hesitation, Tesla nodded and said, "Of course I know about cathode rays, and I have learned some about them, but I haven't gone too deep...... Mr. Huntelaar, why did you suddenly mention it to me? “

"Because I'm interested in it!"

After smiling, John said without hesitation: "When I was studying at the University of Berlin, I saw this kind of tube in the physics laboratory, and I also read Mr. Crookes's papers...... Mr. Tesla, I'm interested in photographic photographic photosensitivity near the tube. Recently, I suddenly remembered, so I would like to consult you. ”

"Oh."

Although Tesla looked suddenly enlightened, his flickering gaze showed that he still had doubts about John's words.

However, the young man in front of him was his own boss after all, and he was also asking about physics, so Tesla shook his head after a little consideration and said, "I'm sorry Mr. Huntelaar, my understanding of it is really very shallow." And can't tell you anything more...... Also, I'm so focused on researching new ways of communicating right now, and I'm afraid I don't have time to help you with that. ”

Before John could speak, Tesla preemptively blocked his words.

"Uh...... All right. ”

After a slight startle, John stopped the topic with some disappointment. In fact, he also knew that Tesla should not have left a name in this field, but a post he saw by chance in his previous life once said that this big bull also seemed to have studied cathode rays, so he tried to ask today, but he didn't expect the other party to give it back almost without any consideration!

"Hmm. Mr. Huntelaar. ”

As if to see John's disappointment, Tesla quickly smiled and said: "If you are really interested in cathode rays, I suggest that you can read more German physics journals, where scientists should have studied it more, and it is also at the forefront of ......"

……

After seeing off Tesla, John went upstairs to his study.

For the clinically practical X-ray technique, our Mr. Huntelaar is now imperative and has decided to get it done as soon as possible. Because of this period of time. More and more, he felt that the limitations of diagnostic technology on him, a future physician, could even be said to be greater than Thomas's "old" surgeons!

Ultimately. After all, it's still a matter of philosophy!

For Thomas et al., surgery itself is a subject that requires "guessing" and "trying", so they will rejoice in John's new theories and techniques in the fields of sterility, local anesthesia and appendectomy, and will not hesitate to try new surgeries without any certainty. To give a simple example, after the success of John's appendectomy and Vienna's Bibliosurgery. I don't know how many surgeons in Europe are trying new abdominal surgeries, and even neurosurgery and thoracic surgery have suddenly increased a lot!

Of course, this in itself should not be questioned.

Although for this day and age, there are far more patients who die on the operating table because of these real surgeries than surgeons who have been saved. But it is undeniable that it is precisely because of the seemingly "reckless" attempts of these surgeons that surgery has developed rapidly at the end of the 19th century! And these guys, who are definitely "killers in white" in the eyes of later generations of doctors, have also gloriously left a name in the history of surgery that will be worshiped by future generations!

But at the end of the day, John was not a physician of his time.

As a surgeon who grew up in the 21st century, John has long been accustomed to relying on a variety of test results, in fact, not just surgeons, but almost all physicians have developed this habit.

In John's previous life, the physicians even attracted a lot of criticism because of this!

Because of the high cost of examinations, long waiting times and other reasons, many people complain that they have to do many examinations when they go to the hospital, and many people on the Internet scold them, saying that the hospital will always do this purely to make money. On the one hand, these tests are indeed an important source of income for hospitals, and on the other hand, many older people have good reasons: in the past, doctors often only needed to do some physical examinations to make a diagnosis, so why do they need so many instrument tests?

Either the level of doctors is far inferior to before, or it is just to make money!

And for these critical voices, the doctors are also full of grievances. In the past, due to economic and technological backwardness, domestic hospitals did not have so many resources to do these examinations, and could only rely on the experience of doctors, but now that there are conditions, why not use them? Moreover, with the improvement of the domestic medical level, the state has issued one diagnosis and treatment standard after another, and these diagnosis and treatment standards must be based on the results of the examination......

Why not see how much the prognosis for various diseases has improved compared to before?

Before John crossed over, such arguments never stopped. Almost every year, countless people ask the same question: Is there a situation of excessive medical care in hospitals? How can I prevent it?

In John's view, this is a very complex issue.

In addition to the requirements of diagnosis and treatment standards, this also involves the regulations of the hospital, the personal habits of doctors, the requirements of the department to generate income, the pursuit of economic interests, the increase of patients' awareness of rights protection, and the short time of doctors' diagnosis and treatment. To put it bluntly, he is definitely not a simple problem, but involves all aspects of society, systems and so on......

Well, that's a long way off.

In a word, without CT, MRI, or even the most basic X-rays, John as a surgeon is really unsure. Therefore, after pioneering various techniques for acute appendix surgery, he is now not in a hurry to chase after the victory, but slowly slows down the pace of surgery.

The symptoms of acute appendicitis are typical and relatively easy to diagnose, but what about other complications? Because perhaps without these examination methods, John would still be better than any surgeon of his age, but this is not what John wants—he is used to planning and then acting, and he really can't accept the surgical method of "crossing the river by feeling the stones".

So John is now thinking about an X-ray, trying to see if he can get it a few years in advance.

"It's a pity that I'm not a physics person after all."

After sitting in a chair and pondering for a long time, John could only reluctantly give up his research plan and write on the spread of the stationery: "Dear Anna, I am sorry for the delay of two days to reply to you......"

"I am very sorry about the tragedy in England, but believe me, there is nothing wrong with the genetic theory of blood group......"

"Finally, allow me to make a rash request, will you ask Mr. Brister to help me find out the contact information of a man?" He was a physicist named William? Conrad? Röntgenium ......"

…… (To be continued......)