Magus Tech Chapter 17: Baghdad Batteries

A voltaic pile, as the name suggests, is actually a "pile", which is composed of "voltaic layers" piled up one by one.

Li Cha put a zinc ring on a copper ring, and then pressed it with a piece of linen cloth soaked in salt water to make a "voltaic layer". Next, Li Cha put the zinc ring and copper ring on the linen cloth again, and pressed the linen cloth. After repeating the operation more than a dozen times, a columnar body stands in front of my eyes, which is the so-called "voltaic pile" - a most elementary battery - with the negative pole at the top and the positive pole at the bottom.

Without hesitation, Li Cha quickly connected the metal wires and felt the current strength of the voltaic pile. His eyebrows first raised slightly, and then he calmed down.

It is true that compared with the fruit battery, the current of the voltaic pile has indeed become stronger, but the strength is limited, and there is no magnitude (ten times) change.

Of course, if you want to forcibly use this kind of voltaic pile, it is not impossible. If the current is too small, you can increase it through "parallel connection" of voltaic piles, and if the voltage is too small, you can increase it through "series connection" of voltaic piles. This is just the modern earth, the application of junior high school physics knowledge.

But what Li Cha has to face is that the current and voltage of the voltaic pile are not enough. If you want both to meet the standards, then you have to connect them in parallel and then in series to form a huge voltaic pile. Stack "phalanx". This electric current was used during meditation, and Richard doubted whether he could have enough voltaic piles in his bedroom.

So... it still doesn't work.

Li Cha let out a breath, frowning deeply.

The two maids looked at Li Cha in fear, Li Cha kept frowning and thinking, and tried again on time after a while.

Since the fruit battery is not good, and the voltaic pile is not good, then make a Baghdad battery.

Yes, the Baghdad battery.

If the voltaic pile is the first generator recorded on the modern earth, then the Baghdad battery is the first generator not recorded on the modern earth.

Unlike the rest of the batteries, the Baghdad battery has no clear inventor and was actually dug out of the ground by accident:

In the modern history of the earth, on a certain day in the midsummer of June 1936, outside the village of Gjatrabah on the outskirts of Baghdad, the capital of Iraq, a railway construction project was underway. When the workers were preparing to lay the roadbed with shovels, they unearthed an ancient mausoleum made of huge stone slabs. They continued to dig and dug out an ancient sarcophagus.

Two months later, with the help of Iraqi archaeologists, the sarcophagus was carefully opened, and a large number of cultural relics from the ancient Persian era more than 2,000 years ago were found. There are twisted beads made of pearls and a large number of gold and silverware, and there is also an oddly shaped pottery.

This pottery is the Baghdad battery. After being successfully repaired, the current generated lasted for 18 days before disappearing.

No one knows why chemical batteries existed more than 2,000 years ago and were more advanced than voltaic piles. No one knew how far the electrical experiment had developed at that time.

Li Cha also doesn't know about this puzzle. Now that he has made the Baghdad battery, he just wants to test whether it can meet his needs.

I hope...

Thinking about it, Li Cha turned around and ordered again to the two maids. It took a little longer this time, because the materials used were significantly more troublesome than the previous two batteries.

Half a day later, the materials were ready, and Li Cha made it himself again. The two maids watched with wide-eyed eyes, because they didn't know whether Richard would let them read it once and imitate and make a new one, after all, there was a precedent for this.

Li Cha moved quickly. He first picked up a clay pot more than ten centimeters high, and then poured viscous asphalt into it.

The asphalt is still warm and maintains a certain degree of fluidity, slowly deforming according to the shape of the clay pot. After the asphalt filled more than half of the clay pot, Li Cha picked up a thick copper pipe with a diameter of about 3 inches. Insert it into the asphalt in the jar so that the whole copper pipe is submerged in the asphalt.

Then Li Cha picked up a thin solid iron rod and inserted it into the copper pipe, carefully controlling the angle to ensure that the iron rod does not touch the wall of the copper pipe and is a few centimeters higher than the copper pipe. .

After finishing these, immediately began to pour the acid into the jar, bubbles came out, and the Baghdad battery was completed. Connect the copper pipe and iron rod with wires, and when Li Cha touched it, he immediately felt a much stronger current appear.

But after feeling it for a while, Li Cha frowned again.

It is true that the current is strong, but it is still not enough to change the biological current in the body. In addition... the current of the Baghdad battery is extremely unstable, sometimes strong and sometimes weak. Although it is not clear what impact this will have on "opening up the source of law", Richard thinks it should be a bad one.

"Sure enough, it still doesn't work." Li Cha murmured, letting out a foul breath. Shaking his head, he pushed open the door of the independent laboratory and went out, followed by the maid An Qi and the maid Luna.

The rest of the maids in the hall saw that An Qi and Luna were still with Li Cha, and couldn't help casting jealous glances at them. But soon, they found that His Royal Highness Li Cha had an unhappy expression on his face, and An Qi and Luna were even more flustered, and their eyes immediately changed to gloating.

There is also competition among the maids, and it is very fierce. At this moment, in the eyes of the other maids, Angie and Luna obviously did not complete the task that Li Cha gave and made Li Cha angry. This is a big deal for them. good news.

"Da da da", Li Cha walked through the hall and walked to the gate of the palace, and found that it was almost afternoon—half a day had passed before he knew it.

After three experiments, the current problem is still not solved, how to solve it?

Li Cha fell into deep thought~IndoMTL.com~The captain of the bodyguard Edward appeared. After seeing Li Cha, he wanted to remind Li Cha not to forget to eat lunch. But seeing Li Cha's brows furrowed in deep thought, he stopped rationally and didn't come up to disturb him.

The whole world suddenly became quiet. The guards and maids in the palace were doing things with hands and feet, trying not to make any noise, lest it would affect Richard's thinking and make His Royal Highness angry.

In this eerie silence, Li Cha pondered for a long time, looking for a solution to the problem.

After a while, Li Cha suddenly raised his head and looked at the square in front of him.

"Plop flop..."

The two gray sparrows almost flew past the ground of the square.

Turning his head to look above the palace gate, in a corner, a spider is weaving a spider web quickly, a vertical web.

Squinting his eyes slightly, Li Cha stretched out his hand, felt it, and found that the air humidity was increasing. Turning his head to look at the sky, the sun is still there, but the clouds are thickening, and the southern sky is getting darker a little bit.

"Is it going to rain?" Li Cha's eyes narrowed.

In theory, this is normal. After all, it has been hot and dry for several days, and a large amount of water vapor has evaporated into the air, and there is a great chance of rain. From the looks of it, it shouldn't be too small.

And once it rains, it will be accompanied by thunder and lightning.

As a natural electric current, lightning is theoretically strong enough to change the biological current in a human body without even thinking about it. But how to lure it down and control its use is a problem. After all, I don't want to be struck by lightning. That would not be scientific research at all, but suicide.

In this case...

After a while, Li Cha turned around, had a plan, looked at the captain of the bodyguard Edward and said, "Bring the craftsman of the palace, I have something to tell him."

"Ah, yes..."