Ps. Thank you Zhang Leng 123 for your tip, thank you for your support.

In addition to meeting Professor Clausius, Joey has come to the University of Berlin today to meet Professor Röntgen. So with this reason. Joey hurriedly said goodbye to Dr. Fischer, the mad genius, and the other doctors who shared his hobby.

Drug abuse existed long before the chemical synthesis of drugs, and the Roma witches hallucinated by eating psychedelic mushrooms to help people make predictions, and the mathematicians of the nineteenth century, especially those in England, also liked to eat this mushroom to help them turn abstract mathematical theories into concrete worlds.

Of course, there are plants such as sage and marijuana, and the history of human drug abuse is actually thousands of years, and it is impossible to solve the problem of human drug abuse by simply relying on accusation or criticism.

In Joey's view, doing a good job of drug classification is one solution, and another more important way is to enrich the inner emotional world of the mentally empty, such as through exercise.

But it must be admitted that the brain is the most complex and delicate organ of human beings, from a psychological level, death has always been one of the instinctive choices of the brain, even if you want to avoid mental emptiness through exercise, but there are still people in order to get the pleasure substances secreted by the brain, and do those extremely dangerous extreme sports.

Human instinct dictates that all carnal stimuli are for the pleasure of the spirit, and Joey cannot blame these people.

But Joey can at least make a decision for herself to remove laughing gas from her youth party plan.

So Joy took the ideas of Professors Helmholtz, Kirchhoff, Maher, and Hertz, and took Dr. Fischer's caffeine and cocaine ideas with him, and rushed to Professor Roentgen's laboratory without looking back.

Professor Röntgen wants to show Joey not a fluorescent lamp designed according to the principle of three primary colors, after all, since the material science and electrical requirements involved in the ballast, Professor Roentgen is still in the difficult progress, although Joey recommended the solution of the core transformer, but in the capacitance and resistance is still insufficient, this work can only accept the test of time.

But when it came to integrating Sir Crookes' Cruise ionization tubes, Professor Röntgen finally had a remarkable breakthrough after ionizing metal vapors to ionizing certain gases at Joy's suggestion.

Joey walked into Professor Röntgen's lab and was immediately mesmerized by the flickering lights in front of him, "Oh my God, I've finally seen this damn, love-hate advertising light in this world!" ”

"Herzlich willkommen" consists of a variety of colored letters to form the word "warm welcome", which is exuding a charming seductive power, and due to the fact that the voltage is not very stable, the word flashes like a charming lady flickering, winking at her lover.

If this thing were all over the streets under the linden, Berlin at night would really look a little like its previous life..... Thinking of Joey here, his eyes were suddenly covered by a layer of moisture, it has been more than two months since he left his familiar past life, Joey looked at the sample displayed by Professor Roentgen, and suddenly remembered his own home in his previous life for no reason.

Professor Röntgen was frightened by Joey, who was quietly crying as he watched his research results, and said to himself, "Is this really bad for the eyes?!" Thinking of this, I hurriedly unplugged the light.

The letters, which suddenly lose their glamorous light and become gray again, instead push Joey out of the sad world and bring Joey back to reality again.

"Jojo, are you alright?!"

Looking up at Professor Roentgen, with a concerned face, Joey tried his best to clean up his mood, and said with a smile, "It's so beautiful, I was moved by a work of art, I didn't expect that your work is so beautiful, Mr. Professor!" ”

"Hahaha!" Professor Röntgen laughed merrily, and some were moved to tears by his work, far more powerful and happier than any verbal compliment.

"Jojo, thanks to you, I have found God's palette and presented it to everyone in the form of light and electricity. To be honest, the first time I lit it, I didn't expect it to be so beautiful! Professor Röntgen sighed, "I didn't expect the colorful light from the ionization of different gases to become so beautiful through the glass tubes of different shapes." ”

"Mr. Professor, if this thing hangs on the door of a shop, do you have any desire to go inside?!" Joey laughed and said, "It's so dazzling in the daytime, and it's even more glamorous at night." ”

"Of course, I'll wait for the first store to hang it, and I'll use Jojo to give me a bonus and buy something in there!" Professor Röntgen affirmed.

"Mr. Professor, I assure you, just one store won't cost you more than your winnings!"

Hearty laughter echoed in Professor Röntgen's laboratory again.

Joey watched as the lights came on again, and another thought came to his mind, "Mr. Professor, can you make some graphics other than fonts?" ”

"Graphics?"

"That's right, graphics, some beautiful patterns, like people, animals, flowers and so on, and we can make these patterns move!" Joey laughs and says, "It's like sims walking, animals running, and flowers blooming!" ”

"Move....... do I still design a complex set of drives, but this will cause complex electrical structure changes, Jojo, your idea is too ...., okay, I want to think about it." Professor Röntgen was troubled by Joey's new idea.

"No, Mr. Professor, it doesn't need to be that complicated, we just need a switch that can switch the current. Aside from the switches, my idea is actually very simple, and I'll draw it for you. After that, Joey found a piece of paper, used a pen to draw a four-legged, four-arm figure on the paper, and then pointed to the figure, and said with a smile, "We just need to pass the switch, and each time we show a pair of arms and a pair of legs, doesn't this person look like he walks?" ”

"Ahh Jojo, you have a lot of ideas, and I have to admit that this method is very good, and the structure is very simple, and it seems that I am going to talk to Professor Kirchhoff about the switch again. Professor Röntgen shook his head, "It's a lot of ideas, and in this way, it's not only fascinating, but also lively." ”

After looking at the lights obsessively for a while, Joey suddenly remembered something and asked Professor Roentgen, "Mr. Professor, if I order a batch of products for you right now, will it be soon?" ”

"If it's not a big problem to do one or two sets of words like this, my laboratory can afford it, and my laboratory now has the best glass-blowing craftsmen in Germany, as well as the best vacuum equipment." Professor Röntgen said with a smile.

"If it's a lot, like dozens of groups of words, or even the graphics I just mentioned, is that okay?" Joey asked nervously.

"So much?!" Professor Röntgen shook his head, "That's not going to work, I'm too tight on the materials at hand, I can't make them unless I have enough materials." ”

"Glass tubes?" Joey asked tentatively.

"No, it's not a glass tube, glass tubes are not a problem with me, as many glass tubes as you want, as long as you light the stove, the glass craftsmen can blow them out for me." Professor Röntgen continued to shake his head, "My biggest problem right now is the lack of gas. ”

"Jojo, all you can see now are red, yellow, white, and blue." Professor Röntgen pointed to the four colored tubes and said, "The red light is hydrogen, the yellow light is helium, the white light is carbon dioxide, and the blue light is made of metallic mercury vapor." ”

"The problem of hydrogen and mercury is relatively easy to solve, but the extraction of high-purity helium and carbon dioxide is very troublesome."

"Jojo, if you're willing to accept two colors of light, maybe I'll be able to meet your request, but I can't do four colors. But with just two colors, I don't think it works well.... Well? Jojo, what are you laughing at? Professor Röntgen looked at Joey, who was suddenly grinning at him, a little confused.

"Mr. Professor, helium and carbon dioxide? I think I have a way around it! ”

"No, no, Jojo, carbon dioxide may be a bit of a hassle, it can be obtained through chemical reactions, but the method of obtaining helium is cumbersome and unsafe." Seeing Joey's overly relaxed expression, Professor Röntgen decided to explain to Joey how he obtained helium, "Jojo, my helium is helium from uranium ore that contains helium is roasted to separate gas, and then chemically removed impurities such as water vapor, hydrogen and carbon dioxide, and purified by chemical methods. ”

"You're roasting uranium ore?" Joey started to digress again, asking about things that were obviously unrelated to the ionizing lamp.

"Yes, I've been working on this interesting ore. The calcium-uranium mica ore is the most beautiful stone I have ever seen, the lemon yellow is accompanied by the tender green ore, and its beauty is simply indescribable! Professor Röntgen, too, was clearly led astray by Joey and began to talk about his profession.

"Mr. Professor, isn't that thing dangerous? I mean, it's inside, after all, there's uranium! Joey interrupted Professor Röntgen's words and asked worriedly.

"No, no, no, it's not dangerous, Professor Martin Heinrich Kraprodt, uranium metal was found almost 100 years ago, and the ceramic workers in Albrechtsburg, Mason Province, have long used uranium ore for ceramic coloring, and this is very safe stuff." Professor Röntgen waved his hand confidently.

Joey thought about it carefully, Professor Roentgen lived for almost eighty years in history.... Well, it seems that exposure to uranium ore and X-rays did not take away Professor Roentgenium's health.

Looking at Joey's relieved expression, Professor Roentgen's heart was also relieved, and then he remembered that he was interrupted by Joey, and the helium matter that was originally going to be discussed turned into a discussion about the safety of uranium ore.

"Jojo, we're talking about helium!" Professor Röntgen pulled the topic back, "Helium cannot be chemically generated, it can only be purified, which is a very troublesome thing. ”

"Frankly, if these gases were only obtained in the lab, my improved Cruise ionized light tube would be expensive, and not everyone could afford it, unless we could find a cheap way to get the gas. Jojo, that's where I'm the hardest. ”

"Mr. Professor, I have really found a way to obtain helium in industry, of course, this method of obtaining helium has nothing to do with me, I just know a person who has a set of methods to obtain gas through temperature and pressure." Joey explained earnestly.

"I firmly believe that the gas produced by his method will be cheap." Joy assured Professor Röntgen.

"Oh, take advantage of the temperature and pressure.... That's a good idea, Jojo, and I'd like to meet this person. Professor Roentgen immediately understood what Joey was talking about.

"Of course, Mr. Professor, it's not just you who want to meet him, I want to too. By the way, the person I recommend to you, Professor Linde from the Technical University of Munich, I will arrange a time for you to meet this week. ”

"By the way, Mr. Professor, in fact, there is another gas that can also emit a beautiful red light, neon gas, it is safer than hydrogen, if Mr. Linde can find an industrial purification method for neon gas, I think your invention should no longer be called Cruise ionized light-emitting tube, this name is too awkward!"

"Why don't we call it a neon lamp (neon lights are originally meant to be neon lamps)?"