Magus Tech Chapter 16: Fruit battery and voltaic pile

After a lot of thinking, Richard had a guess that the so-called "highly activated state" is probably the "energized state".

In a normal human body, the metabolism of cells in the body and the transmission of nerve signals are accompanied by the flow of potassium and sodium ions on the cell membrane, thereby generating bioelectricity. This kind of bioelectricity is very weak, and the voltage is generally on the millivolt level (millivolts are mV, and 1 volt is equal to 1000 millivolts).

Although weak, bioelectricity is of great significance to humans. Its changes can directly lead to changes in cell metabolism or function in the body. For example, when nerve fibers are locally stimulated, the excitability at the cathode will increase and the membrane potential will decrease (depolarization), while the excitability at the anode will decrease and the membrane potential will increase (hyperpolarization).

According to the description of the construction of the source of law in "Chapter of Monroe", it is obvious that some kind of transformation occurs in the body structure. The so-called spiritual power is used in it, which is most likely related to this bioelectricity. Perhaps it is to increase the bioelectricity in the human body to a certain level, so that the body can open up a new "organ" called "the source of law" under the action of spiritual power.

Of course, this is just a guess, and whether it is right or wrong remains to be verified.

The main reason why Richard wanted to call two maids was to try to make a battery that could discharge current for testing in the current Middle Ages that had nothing to do with "electrification".

First of all, Li Cha is going to make the simplest fruit battery. The raw materials only need a piece of copper, a piece of zinc, a piece of wire and a piece of fruit.

Because copper and zinc have different active types, after the fruit is inserted, the zinc sheet will undergo an oxidation reaction, lose electrons and flow to the copper sheet, thereby generating an electric current in the wire.

Since there was no difficulty, Li Cha briefly said a few words and asked the maid An Qi to make it. The other party did not disappoint Li Cha, and soon finished the production, and saw a thin iron wire connected to a piece of copper and zinc the size of a fingernail, inserted into a pear.

The maid An Qi carefully handed the fruit battery to Li Cha. After taking it, Li Cha touched it, frowned, and immediately knew that the fruit battery was unqualified.

It's not a production problem, after all, the production method is so simple that it is impossible to make mistakes, but a problem with the fruit itself. Because the fruit juice is acidic, the chemical reaction can proceed successfully, thus generating an electric current. But compared to real acid, fruit juice is still too weakly acidic, so the current and voltage generated are too small.

Li Cha felt it for a while, and estimated that the voltage is less than 0.5 volts and the current is less than 1 mA. This level of current is stronger than the normal biological current of the human body, but it is too reluctant to have any effect on the body. .

After all, the human body has resistance. If it is the spontaneous increase of bioelectricity in the body, it will be fine, but it is impossible for normal people without wizard talent to do it. However, if you want to apply current from the outside to affect the body, and use a scientific method to crack life remodeling, then you must overcome the resistance of the human body as high as 1000Ω, and you must apply a stronger current.

Now the question is, how to get stronger current?

Li Cha frowned, thought for a few seconds, and asked the two maids to make different fruit batteries.

Different types of fruits have different acidic juices, so the generated currents are different. Find the strongest one, and you may be able to ignore the body's resistance of more than 1000Ω and meet the requirements.

The fruits of the Middle Ages are not too small in detail. Common ones include cherries, strawberries, blackberries, apples, pears, cherries, plums, grapes, Western plums, gooseberries, mulberries, blackthorns, Figs, dates, limes, lemons, and more than a dozen.

Li Cha gave an order, and someone will naturally prepare these fruits. Not long after, except for some that were not mature due to seasonal reasons, the rest were placed on the experimental table.

Li Cha waved his hand, and the two maids, An Qi and Luna, quickly started making them. After a while, various types of fruit batteries were placed on the table in two rows. of. Apparently, Angie made more of them.

Li Cha didn't make any further comments. He reached out to pick up a fruit battery and tested it with his body. After a while, he put it down and picked up another one.

After repeating this many times, after testing all the fruit batteries, Li Cha already has an understanding in his heart. Because of the difference in the acidity of the fruits, the current emitted by some of the fruits is indeed stronger than that of the original pear, such as apples and gooseberries. The strongest of these was the lemon, but even then the voltage was just over 0.5 volts and the current was just over 1mA.

Under normal circumstances, the minimum electric current that induces sensation in an adult male is about 1.01mA on average. In other words, under the effect of human body resistance, this level of current can just be noticed by an ordinary person.

This is not what Richard wants.

Standing in the laboratory, Li Cha frowned deeply. The two maids looked at Li Cha's solemn expression, looked at each other without daring to breathe, and carefully lowered their heads. Although they knew very well that His Royal Highness would not lose his temper casually, let alone punish his servants for no reason, it was never a good thing for His Highness to be unhappy.

Li Cha didn't know what the two maids were thinking, but continued to seriously think about the solution to the problem.

How to get stronger current?

Maybe making batteries out of plants other than fruit ~IndoMTL.com~ can give it a try. For example, the famous potato clock is made of potatoes.

But... potatoes don't seem to exist in the current Middle Ages.

After all, according to the development of the modern earth, it was not until the age of great navigation after the Middle Ages that someone spread potatoes from South America to Europe.

In the current world similar to the Middle Ages, Richard is not sure whether it is the one in the history of the earth, or whether there are so-called South America and Europe. But no potatoes are real, so the potato clock is a no-brainer.

Having said that, even if the potato clock is really made, there is a high probability that it may be a waste product. After all, in order to ensure the normal growth of plants, the acidity cannot be too strong. It is very likely that after trying all the plants in the current world, the current that the produced battery can emit is only within the same range.

In this case...

Li Cha narrowed his eyes and blinked quickly.

In this case, you can only make real batteries, such as voltaic piles.

The voltaic pile is the first recorded generator in modern earth history, invented by the Italian Volta on March 20, 1800. The structure is slightly more complicated than the fruit battery, but it is not too difficult, the key is the preparation of materials.

In this case, then...

Li Cha turned his head to look at the two maids and quickly issued an order: "An Qi, go and prepare some salt water, with a moderate concentration. Luna, come with me, and trim these linens to the same specifications. Then put these Treat the copper sheet and zinc sheet in the fruit battery and cut it into a ring..."

After Li Cha finished speaking, the two maids quickly responded and started to get busy.

Not long after, the materials were ready, and Li Cha began to make voltaic piles on the experimental table himself.