Chapter 17 Baghdad Battery
A voltaic pile, as the name suggests, is actually a "pile", which is composed of "voltaic layers" piled up one by one.
Richard put a zinc ring on a copper ring and pressed it with a linen cloth soaked in salt water to make a "voltaic layer". Next, Richard re-placed the zinc and copper rings on the linen and pressed the linen. After repeating the operation a dozen times, a columnar body stood up in front of us, the so-called "Voltaic Pile" - a most elementary battery - with the negative electrode at the top and the positive electrode at the bottom.
Without hesitation, Li Cha quickly connected the metal wire and felt the current strength of the voltaic stack. His eyebrows first raised slightly, and then calmed down again.
It is true that compared with the fruit battery, the current of the voltaic pile has indeed become stronger, but the increase is limited, and there is no order of magnitude (ten times) change.
Of course, if you want to forcibly use this kind of voltaic stack, it is not impossible. If the current is too small, it can be increased by "parallel" through the voltaic stack, and if the voltage is too small, it can be increased by "series" through the voltaic stack. This is just the modern earth, the application of junior high school physics knowledge.
But the problem that Li Cha has to face is that the current and voltage of the voltaic stack are insufficient. If you want both to meet the standard, then you must connect them in parallel and connect them in series to form a huge voltaic stack.” phalanx". This current was used during meditation, and Richard doubted whether enough voltaic piles could be placed in his bedroom.
So... it still doesn't work.
Li Cha let out a breath and frowned deeply.
The two maids looked at Li Cha in fear, and Li Cha kept frowning and thinking, and tried again on time after a while.
Since fruit batteries are not good, and voltaic piles are not good, then make Baghdad batteries.
Yes, Baghdad batteries.
If the voltaic pile is the first recorded generator on the modern earth, then the Baghdad battery is the first unrecorded generator on the modern earth.
Unlike the rest of the batteries, the Baghdad battery has no definite inventor and was, in fact, dug out of the ground by accident:
In the history of modern earth, one day in the midsummer of June 1936, outside the village of Goga Trabua on the outskirts of Baghdad, the capital of Iraq, the construction of the railway was underway. When the workers were preparing to lay the roadbed with shovels, they unearthed an ancient mausoleum made of huge stone slabs, and continued to dig out an ancient sarcophagus.
Two months later, with the help of Iraqi archaeologists, the sarcophagus was carefully opened, and a large number of artifacts from the ancient Persian era were found more than 2,000 years ago. There are twisted beads of pearls and a lot of gold and silver, as well as a strangely shaped pottery.
The pottery is the Baghdad battery. After it was successfully repaired, the electricity generated lasted 18 days before disappearing.
No one knows why chemical batteries existed more than 2,000 years ago and were more advanced than voltaic stacks. No one knows how far the electrical experiments have developed at that time.
Richard also doesn't know the puzzle, and now he has made the Baghdad battery, just to test whether it can meet his needs.
hope so……
Li Cha thought about it, turned to the two maids and gave instructions again. It took a little longer this time, because the materials used were obviously more troublesome than the previous two batteries.
After half a day, the materials were ready, and Li Cha made it again by himself. The two maids watched with wide-eyed eyes, because they didn't know whether Richard would let them watch it once and then imitate it and make a new one. After all, there was a precedent for this.
Richard moved quickly, first picking up a clay pot more than ten centimeters high, and then pouring the viscous asphalt into it.
Asphalt still carries temperature, maintains a certain fluidity, and slowly deforms according to the shape of the pot. After the asphalt filled most of the pot, Richard picked up a thick copper pipe with a diameter of about 3 inside thickness.
Insert it at the pitch in the jar, so that the whole copper pipe is submerged in the pitch.
Then Richard picked up a thin solid iron rod and inserted it into the copper pipe, carefully controlling the angle to ensure that the iron rod did not touch the wall of the copper pipe and was several centimeters higher than the copper pipe.
After doing this, immediately began to pour acid into the jar, bubbles popped out, and the Baghdad battery was completed. Connect the copper tube and the iron rod with a wire, and when Richard touches it, he immediately feels a much stronger current appearing.
But after a while, Li Cha frowned again.
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 sources of law", Li Cha thinks it should be the bad one.
"Sure enough, it still doesn't work." Li Cha murmured, spit out a turbid breath. Shaking his head, he pushed open the door of the independent laboratory and walked out, the maid An Qi and the maid Luna hurriedly followed.
When the other maids in the hall saw that An Qi and Luna were still with Li Cha, they couldn't help but cast jealous glances at them. But soon, they found that His Royal Highness Prince Richard had an unhappy expression on his face, An Qi and Luna were even more flustered, and their eyes immediately turned to schadenfreude.
There is also competition between the maids, and it is very fierce. At this moment, in the eyes of the other maids, An Qi and Luna obviously did not complete the task assigned by Li Cha, which made Li Cha angry, which is good news for them.
"Da da da", Richard strode through the hall and walked to the gate of the palace, only to find that it was almost noon -- half a day had passed before he knew it.
After three experiments, the current problem has not been solved. How to solve it?
Richard was lost in thought.
The captain of the guard, Edward, appeared. After seeing Richard, he wanted to remind Richard not to forget to eat lunch. But seeing Li Cha's brows furrowed in thought, he stopped rationally and did not come up to disturb him.
The whole world suddenly became quiet, and the guards and maids in the palace were doing their work, trying not to make any noise, lest they affect Richard's thinking and make His Royal Highness angry.
Li Cha was in this strange silence, thinking 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.
"Pumppumppump..."
The two bullfinch swept past almost against the ground of the square.
Turning his head to look above the palace gate, in a corner, a spider was rapidly weaving a spider web, a vertical web.
Squinting slightly, Li Cha stretched out his hand, felt it, and found that the air humidity was increasing. Turning 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.
"It's going to rain?" Li Cha narrowed his eyes.
In theory, this is normal. After all, it has been hot and dry for several days, and a lot of water vapor has evaporated into the air, and there is a great chance of rain. It looks like it should be quite small.
And when it rains, there will be thunder and lightning.
As a natural current, lightning is theoretically strong enough to change the biological current in a human body without thinking. But how to draw it down and control its use is a problem. After all, I don’t want to be struck by lightning, so it is not scientific research at all, but suicide.
In this case……
After a while, Richard turned around, made a plan, looked at Edward, the captain of the guard, and said, "Get the craftsman from the palace, I have something to tell him."
"Uh, yes..."
