Datang: Time travel in two months, wait online, hurry up!

Of course, it was only a small amount of gunpowder experiment, he didn't dare to make more.

One is that it is not safe in the laboratory, and the other is that he has not crossed over yet, so he will be sanctioned by the laws of this world.

However, a small amount of gunpowder experiment is enough. He himself is just to verify the production formula and process, and he doesn't want to make much gunpowder.

He started with the most basic black powder, using potassium nitrate, sulfur, and carbon as three raw materials to make a little black powder.

He made it completely according to the most perfect recipe, so the quality of the black powder he made was still very high, which made him very satisfied.

Then came nitrocellulose gunpowder, also known as single-base gunpowder.

This is the gunpowder that Li Ke will focus on producing after traveling through the past.

Because this is more powerful, and relatively speaking, the technical difficulty is not particularly high, so it is suitable for large-scale applications.

The experiment of single-base gunpowder also went smoothly without any deviation.

Then there are double-base and triple-base gunpowder.

To be honest, he was still a little nervous when making double-base and triple-base gunpowder.

After all, this thing is quite powerful. Although he only made a small amount, he must be nervous.

Fortunately, he had the most standard experimental procedure in mind, and all operations were the most standard, so there were no accidents in the experiment.

"Single bases will be used as gunpowder for bullets, double bases and triple bases will be used as gunpowder for shells!"

Li Ke classified the uses of these three types of gunpowder according to their power.

The compass experiment is much simpler. Take a steel needle and rub it on the magnet a few times, then place it on the water, and the steel needle will immediately face north.

Yes, although it's called a compass, the pointer actually points to north.

He then experimented with how to generate electricity.

Power generation is actually the process of metal cutting the magnetic field continuously.

The metal cutting magnetic field will generate current, which is the knowledge learned in junior high school physics.

But how to generate electricity on a large scale, how to transmit and control electricity, etc., requires more profound knowledge.

He can only do a simple experiment of generating electricity in the laboratory, and the following series of things can only be done after traveling through the past.

But the theory has already been memorized in his mind. After traveling through the past, a group of electrical talents will be specially trained for them to study and ponder.

In addition, he also did a lot of physical experiments.

Basically, he has done all the experiments that can be done in the laboratory!

If it is said that half a month ago, because he has read a lot of professional books, he is a master of theory and a master of practical skills.

Well, after half a month of crazy experiments in all aspects, he has now become a senior talent with both theory and practical skills!

He is walking on two legs now, very stable!

Both theory and practice.

Although there is only half a month left before the crossing.

But his heart is full of confidence!

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Chapter 37 Buy Toys!Last 7 days!

Li Ke cleaned up the laboratory.

The laboratory is useless to him, and all the experiments that should be done have been done.

So, he processed the extra raw materials in the laboratory.

Fortunately, he bought the raw materials according to the experiment plan, and basically the experiment was almost consumed.

After cleaning the laboratory, he left the laboratory with some of his personal belongings.

He sent a wechat message to Zhao Nanyan's senior sister about it, and expressed his thanks to her again.

After returning the keys to the property, he went home.

Although he only lived in the laboratory for half a month, after returning home, he still felt as if he had passed away.

Every day I look at the bottles and jars in the laboratory, all kinds of chemicals.

Now when I come home and see everything at home, I feel a little strange and uncomfortable!

Shaking his head, he went to the bathroom and washed his face to clear his mind.

"There is still the last half month, I have to make good use of it."

"The next step is to search and watch videos of experiments that cannot be done on the Internet, and learn as much as possible!"

"And, post on the Internet to discuss how to build a camp, expand power, and win over important ministers!"

Li Ke quickly clarified the next two-step plan.

After doing these two things, the preparatory work is basically coming to an end.

And the time is just about to pass through.

He never procrastinates in doing things. Now that the plan is confirmed, he will start to implement it immediately!

Sitting in front of the computer, he opened YouTube and Bilibili, and searched for related videos.

Such as guns, steelmaking and iron making, drying sea salt, burning cement, manufacturing spinning machines and looms, etc.

These are either not allowed by law or restricted by conditions. They are all experiments that he wanted to do but failed to do.

Now I can only sit in front of the computer and watch other people's videos.

Of course, due to the limitations of some objective reasons, the content in station B is still very routine.

Compared with before, he found many valuable videos on YouTube.

After all, foreign countries are more 'free', some things are everywhere, and no one cares about them.

Next, he entered the link of watching videos and learning.

It feels like taking online classes at home, but Li Ke also enjoys it.

During this period, apart from watching videos to understand, he was not idle the rest of the time.

If the real guy breaks the law, shouldn't he start with fakes?

Really can't buy it, but toy guns can be bought casually.

He saw on the Internet that there is an imported toy gun, which is very realistic, almost one-to-one, and the internal structure is almost exactly the same!

Then he placed the order.

After getting it, he took it apart, touched and felt each part, and wanted to write down these parts.

Although he has design drawings of many classic guns in his mind, it is definitely better to be able to touch and feel some specific parts with his own hands.

Of course, what he mainly wants to understand is some of the structural principles.

For example, after traveling through the past, the first gun he wanted to make was the Dreiser firing pin gun.

This is actually the earliest bolt-action rifle, and the bullet is pulled from the side instead of pouring the bullet in from the front of the barrel.

What he wants to understand is this bolt structure!

After all, the theory is different from the actual experience. I have to say that this toy gun is really realistic.

In fact, finding inspiration from toys is not a casual talk, there are real cases.

In the past, our country's equipment was very backward, and I have always wondered how foreign submarines are designed.

Many experts have studied for a long time, but some key designs still cannot be broken through.

In the back, there was a diplomatic staff who bought a submarine toy for his son when he was on a business trip abroad.

Later, it was seen by experts. After taking it apart and seeing the design and structure inside, it suddenly dawned on me!

Because the internal structure of this submarine toy is almost exactly the same as that of a foreign submarine!

Although it looks like a joke and joke, it is actually a real thing.

With this inspiration, he naturally opened his mind.

I bought one of all sailing warships, ironclad ships, various cannon toys and models, and studied them at home with great concentration.

Now, in addition to piles of books, his house is also full of toy models!

Watching videos and researching toy models again took 7 days!

At this time, the countdown to his time travel, the time has only the last 7 days left!

And he had only one last plan left.

That is to study the way of management after time travel!

Manage business, manage contacts, manage power!

He opened Zhihu again, ready to post a post.

However, he saw someone send him a private message in the background, so he clicked on it.

"Lord, didn't I ask you to give me the address and contact information? I'll send you some tea, thank you for bringing health to the ancient female compatriots!"

"The landlord? Why don't you reply to the private message?"

"Lord, I'm really not a liar, I really have a kind of tea at home!!!"

"Ah!!! I really hate those swindlers who borrow tea to swindle. Our reputation as serious tea farmers has been ruined by these swindlers!"

Because he hasn't been on Zhihu for more than a month, he hasn't seen her private message at all.

But she didn't know, she thought it was Li Ke who saw it, thought she was a liar, and ignored her on purpose.

Seeing the messages she sent, it can be seen from the words and punctuation marks that every time she sends a private message, her mood will be more irritable than the last time.

In the back, it is estimated that the defense has been broken.

Thinking of this, Li Ke smiled and was about to close the private message.

At this time, he suddenly thought of something, and his eyes lit up.

"Hello, your family grows tea, should there be raw tea?"

"I don't buy ready-made tea, I want to buy freshly picked and unprocessed tea, is that okay?"

Li Ke offered to buy unprocessed tea from her!

He hasn't experimented with the method of frying tea yet!

Now that there is an opportunity to experiment, of course he will not let it go!

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Chapter 38 Sorry, I am too small!

Tea is an extremely important industry in his plan!

He also counted on making money by selling fried tea in the Tang Dynasty.

Because there are already finished tea products on the market, the kind that can be brewed and drunk directly.

But what he wants is the freshly picked tea leaves, and he needs to fry them himself.

He searched on the Internet before, but he gave up when he couldn't find it, and planned to study it slowly after traveling through the past.

Unexpectedly, the female netizen who said she would give him tea leaves actually grows tea leaves at home.

Now there may be an opportunity to experiment with fried tea.

At this time, he saw that the female netizen had sent him a private message.

"You finally replied to my private message, now you believe that I am not a liar?"

Female netizens are still brooding over the fact that Li Ke has not responded to private messages.