PS: I'm sorry, but I stopped for a long time because of something, but fortunately, it didn't take a few days to get going.

------------------

Even though several days have passed, every time she thinks back to Sono's words, Xiao Ya still has to remind herself again that you must not think that you will underestimate anyone in this world after reading the comics, because this is not a world around a boat, but a world that runs on its own, far bigger than the scene shown in the comics, and it must be real!

At that time, he only politely expressed regret for "the loss of relatives to the three children at such a young age", and the captain Sono sensed from the reaction that several people were just a chance encounter, and further analyzed Xiao Ya's personality characteristics, so as to come to the conclusion that "this guy is a stupid 'kind-hearted person' who will take care of children who have nothing to do with him, so he may be disgusted with the robbery of merchant ships", and in order to avoid unnecessary trouble, he did not attack despite discovering merchant ships.

To be honest, for this judgment, even Xiao Ya himself has to admit that it is correct, because he imagined that if it was a pirate fight, he would probably be able to do nothing, but if he really attacked the merchant ship, even if he had already boarded the "thief ship", it didn't mean that he could ignore it, and besides, the merchant ship is also a ship, when the time comes, who will not sit on it? So, it's really hard to say whether I'll fight those pirates or not, after all, my advantage seems to be great......

However, as a stranger who had only met for a few days, Sono was able to analyze his reaction to this extent...... It's scary to think about it! It's not that it's domineering, but it's better than seeing and hearing domineering, in Xiao Ya's opinion, compared to those who can learn domineering, this is the real "domineering", and you can't learn if you want to!

Even, for the "polite pity" at that time, whether it was a "temptation" full of deep meaning, Xiao Ya has not been sure until now, he only knows that this world is very big, and there are many capable people in it, and he is at least desperate for relying on intelligence to fight, and it is not at the same level at all.

And it doesn't stop there, for a person's physical fitness, in addition to intelligence, it is physical strength, of course, for the current Xiao Ya, it is necessary to add the power of the thunder fruit, although he is still a little confident in this regard, it should be no problem to deal with guys with average brains and strength at the current level, but to say that it is going further, I am afraid that there is still no strength.

Moreover, just like the massacre on Gaya Island, this is a real world, with its own natural laws and laws, and it is not only unscientific things such as devil fruits, but also manifested in many ways, at least, even if Newton is killed by an apple here, it is impossible to summarize the law of gravitation, because, the mechanical system here obviously does not follow the laws of the earth, Luffy that guy waved a giant golden ball in the air, playing "rubber fireworks. Golden peony", the scene of the thunderclouds scattered is deeply imprinted on Anilu. Before, Xiao Ya. Now in my mind! According to Newtonian mechanics, no matter how strong Luffy was, this would not have happened.

According to Newton's second law, "an object will produce acceleration when it is subjected to a resultant external force, and the direction of acceleration is the same as that of the combined external force, and the magnitude of the acceleration is proportional to the magnitude of the resultant external force and inversely proportional to the inertial mass of the object", as well as the third law "The force and reaction force between two objects, in the same straight line, are equal in magnitude and opposite in direction", under this system of mechanics, even if Luffy's force is enough to change the state of motion of the golden ball, The mass is much smaller than that of the golden ball, and he will also cause himself to produce greater acceleration due to the reaction force that changes the motion state of the golden ball, in other words, the result of his vigorous swing of his fist should be the golden ball standing still, and he will fly away in the opposite direction at high speed! In fact, Luffy's "Rubber Fireworks. "Golden Peony" is equivalent to a cannon firing, the shell does not move, and the cannon flies into the distance...... However, as far as Xiao Ya can see, even when the cannon of this world is fired, there will not be such a strange scene?! So, Newton, you should sell apples with peace of mind.

Fortunately, although the mechanical system has changed beyond recognition, at least in the field of Thunder Fruit, electricity, at least at the macro level, has not exceeded Xiao Ya's cognition, so high school physics is not in vain, and there is still potential to be tapped, but this is not all a good thing......

For example, the guy who was struck by lightning at the exchange before, although his whole body was scorched black and smoking everywhere, judging from the other party's physical reaction that Xiao Ya sensed, his injuries were still far from death. Of course, Xiao Ya didn't go all out, just "100 million volts", but the key is not this, but the use of directly releasing thunder and lightning to the enemy, it is so powerless!

If you add a high voltage between the two electrodes and bring them closer together. When the two electrodes are close to a certain distance, there will be an electric spark between them, which is the so-called "arc discharge" phenomenon, the lightning produced by the thundercloud is actually "arc discharge" in principle, but its "electrode" is a thundercloud only, to be precise, when the charge gathered in the cloud reaches a certain number, a strong electric field is formed between different parts of the cloud or between the cloud and the ground, reaching enough to break down the atmosphere inside and outside the cloud. Therefore, an electric arc is triggered between the cloud and the ground, or between different parts of the cloud and between different cloud blocks, and a flash of light is released, which is seen by people, which is called "lightning", and the high temperature of the arc sharply heats the air, causing a violent expansion and a detonation, which is thunder.

It can be seen that if there is not enough electric field strength, lightning cannot be formed at all, and high electric field strength means high voltage, so lightning must first be high voltage; But only high voltage is not enough to produce powerful lightning, because it takes current to form arc flash and air explosion, otherwise even if lightning is formed, it will be very thin, very dark, and the sound is very small, so the lightning with a very thick pillar of light, very high brightness, and huge sound has a very large current, that is, a powerful lightning is both high voltage and high current, it is said that the voltage of a lightning can reach hundreds of millions of volts, and the instantaneous current can reach hundreds of thousands of amperes! Thunder and lightning will produce the spectacular scene of thunder rumbling and electric flashing, and the wind is abnormal.

However, the unfortunate thing is this "but", because it is purely relying on the natural accumulation of electric field, so the duration of lightning is very short, about tens of milliseconds, because the discharge time is extremely short, so the paper figure of lightning power looks extremely high, can reach hundreds of thousands of kilowatts, but when combined with time, the total energy is far less scary, about a level of 10~15 megajoules, according to 1 kilowatt-hour of electricity for 3.6 megajoules of conversion, only equivalent to a few kilowatt-hours of electricity......

Although it seems incredible, the combination of power and energy is so magical, in fact, many things are like this, such as the muzzle kinetic energy of the Glock pistol is 500 joules, which can be described in another way, that is, the work done by moving 1 meter with a force of 500 Newtons, or the potential energy of an object weighing 500 Newtons, that is, a little more than 51 kilograms, is shot by a Glock pistol against the muzzle, even if it is on the limbs, it is indispensable, However, when fighting for headers on the football field, athletes with more than 100 pounds fall down and fall on others, and in most cases, they get up and run all over the field, except when the referee may award the opponent a foul......

In fact, from this point of view, Anilu's development of the thunder fruit has far exceeded the power of lightning in nature, otherwise how to use electric lightning metallurgy? It's all thunder and lightning, who has ever seen a lightning rod god horse refined by lightning?

But even though Anilu can release more energy than real lightning, he can't ignore the physical properties of electric currents in many ways, for example, as a pure form of energy, the physical damage of electric currents itself is extremely low, and in fact, the damage caused by lightning to objects is almost entirely dependent on the thermal effect of electric current, as well as thermophysical effects, that is, the high temperature generated by electric current and the physical changes caused by the high temperature of the object due to the action of high temperature.

Taking lightning strikes a tree as an example, when an electric current passes through the tree itself, the high temperature generated will cause the tree to carbonize, or even burn, which is the manifestation of the thermal effect; The water contained in the body and crevices of the tree will be rapidly vaporized and expanded due to high temperature, resulting in an explosion-like impact, causing the tree to burst its bark and even break, which is a thermophysical effect.

It can be seen from this that the physical damage caused by lightning alone has considerable requirements for the properties and forms of objects, such as organic substances such as trees, objects with appropriate electrical conductivity, rich in moisture, and can be burned are relatively easy to be destroyed, and objects such as rocks, metals, and extremely high or low resistance, if there are gaps, they can also be expected to support through the thermal expansion of air and moisture in them, if they are solid and without gaps...... Who has ever seen a thunderbolt split a whole stone?

Because of the mechanism of action, the pure physical damage of lightning to objects is very ugly, so what kind of killing effect will it cause to the human body rich in water and soft and conductive? Can it have a scorching and bursting effect?

When she was in school, Xiao Ya was deeply puzzled by a physics problem, why can transmission lines use high-voltage electricity to reduce losses? According to the power calculation formula, if the circuit resistance is constant, increase the voltage, and the power loss should also increase simultaneously. Finally, one day, he realized that the loss of the transmission line should be regarded as the work of resistance, and this part of the power calculation formula is related to the current intensity, and in the case of a certain power, the higher the voltage, the smaller the current intensity, and the smaller the resistance power generated by the transmission line, in other words, because the power is wasted, the transmission efficiency of high-voltage electricity is high.

In essence, lightning and transmission lines are the same, both are current movement, but the energy generated by the transmission line is called loss, and the killing effect of lightning is completely dependent on "loss", the more current energy is "lost", the more energy acting on the target, but in this way, from this point of view, without changing the total power, simply increasing the voltage of lightning, for the perspective of killing the target, it seems to have the opposite effect?

In addition, when using lightning to attack the human body, the problems that need to be faced are not limited to this, under normal circumstances, the human body, as a good conductor of electricity, can let it pass through when it comes into contact with the current, or in other words, it will become the main path of the current, but when it is struck by lightning, it will occur different from the ordinary, or low-voltage current, this is because the voltage of lightning is extremely high, enough to break through the air, no way, compared with the common "low-voltage" current, the air breakdown voltage is the "starting price" of lightning, Otherwise, it will not be possible to produce a lightning arc...... Therefore, compared with the "conductor" of the human body, air is a more "smooth" channel for thunder and lightning, and the phrase "water flows downward" is in fact applicable to almost all forms of energy, and electric current is no exception.

Therefore, when lightning strikes the human body, most of its energy will pass through the body in the form of flashovers, and only a very small part will pass through the human body. Taking a typical lightning strike as an example, even if the lightning voltage is 5 million volts and the current is in the thousand-ampere range, the power will be as high as 5 million kilowatts, but the current that eventually passes through the human body after hitting the human body is only about 10 kilowatts, and considering the duration of the lightning, the total energy is even more pitiful.

The reason why there is only so little current passing through the human body is precisely because the lightning voltage is extremely high, which is enough to break through the air and pass through the current, so according to the voltage principle, the part of the current acting by lightning on the human body is only related to the breakdown voltage of the air, the resistance of the human body and the length of the arc corresponding to the current in the human body, and has nothing to do with the applied voltage and current...... Therefore, in the case of lightning splitting, the killing effect of relying solely on the lightning current on the target is not proportional to the linear correspondence between the lightning voltage released! Therefore, although the darkness is not slippery by lightning, although the visual effect is good, the lethality is ...... It's not simple, but it's born with a humanoid stroke attribute!

Of course, people are not solid stones or metals, and living people with heartbeats and breathing must be supported by a series of physiological activities, so it is not necessary to burn people through thunder and lightning to produce killing, as long as the current disrupts the physiological activities of the human body, it is enough to have serious consequences, such as lightning current through the heart will cause heart paralysis and stop blood circulation, through the brain may cause nervous system disorders and stop breathing, but the problem is that these injuries are not physical damage, It is a temporary phenomenon caused by the disturbance of the human body's own nervous system by strong current, as long as there is a correct emergency response, there is a high chance of successful rescue, thereby saving lives, in addition, if the life of the person who is chopped is hard enough, even if it is left alone, it is fine, even if it is scorched black, smoke outside, foaming at the mouth or something, it seems that it is no more dangerous than "breaking a few bones, the bridge of the nose, the upper arm and the collarbone are all broken, the amount of blood loss slightly exceeds the lethal amount, and the blood pressure is almost not......

Using lightning to slash people and horses has no fatal effect at all, and it is definitely the wrong way to use it!