Ren Di wrote formulas on the Tongming plastic sheet without saying a word, partial derivation, multivariate equations, infinitely approximating the concept of data, and seemingly very abstract mathematical equations were written on the Tongming plastic sheet, and then projected on the slide projector on the white cloth, and in the vast classroom, teenagers with new magical talents, holding a pen and calculating quickly, each of them had a picture on their notebook, the picture was a model of a reverberatory furnace, but this painted reverberatory furnace, The pencil divides the area into patches to indicate the temperature of each part of the reverberatory furnace. The temperature of each part is every 100 degrees, marked by red, orange, yellow and white.

The picture on everyone's notes is different, they all have their own hand-drawn, Ren Di wrote the formula on it, and they put the pictures they drew together below to compare them collectively. Changes above.

That's right, each picture is the data they have observed with their own weak new magic, and they draw their own independent drawings to get the data they observe. Then it's time for the crown of all disciplines – mathematics to come in. Data analysis, find the trend of change, find the pattern. This is how materials science is accumulated, on the earth, through the measurement of a furnace of steel, earthlings, but there is no organ in this world that people can perceive energy, can only be observed through an instrument, and then keep making steel, accumulating data.

The new magic has no offensive power, and the complexity is not comparable, and the magic configuration of thousands of years in this world has accumulated wonderfully, but it only occupies an incomparable advantage in precision observation. This is precisely what countless great magicians of the Magic Empire have collectively ignored dozens of times, chasing in the direction of the great power of magic. After 50,000 years of magic tide after magic tide, and the glory and fall of one magic empire after another, history seems to have proven that this path is not working.

One slide after another was written out by Ren Di, all the formulas gradually took shape, and all the young people below used their own observed data to substitute the final formula, and the results found that it was very consistent, if the real data observed by each person are all points, the lines composed are also the functional lines expressed by this formula. Mathematics is not some meaningless change of numbers, but shows the law of change.

Just as 3.1415926 extends backwards infinitely, it is actually a real grasp of the reality of the circle. Ren Di wrote down these formulas and told these young people that they would find all the details that affect the accuracy of steelmaking as if they were finding pi, and continue to refine, refine, and refine. The details of the impact of heat dissipation at the furnace mouth of the steel furnace are all in it. Let the shape of the entire steel furnace have a knowledge.

There will always be a gap between the ideal number and what the reality has achieved, but it can be infinitely closer. Science is the process of seeing with both eyes and getting infinitely closer to reality with both hands.

Ren Di nodded with satisfaction after writing down all the formulas, and secretly thought in his heart: "It's really not easy to get this data, you really have to work hard for 20 years, but you have to study hard." However, the young people in the whole large classroom were also writing something. Seventy percent of them are new mages, and the rest are those who have no magical talent but have a significant advantage in mathematics, and they also have new mages behind them as a team. Here, behind every young person is a team. The stacks of materials in their hands are the product of collective labor.

The eyes are important, but the brain behind the eyes is even more important, the days of muscles fighting the world are gone when steel appears, and there are not many days when you can cast spells to show the power of the elements through your own energy.

Look at the big classroom at the bottom and take the initiative to form a group of children who actively discuss. Ren Di smiled with satisfaction. These young people are stronger than they were in high school, at least they are definitely not suitable for this kind of teaching with a very high degree of freedom in high school, if there is no cramming, they are too lazy to read, and free teaching is lazy. However, now these young students are subjectively researching and learning, and they are carrying the direction of the work of a small team. There is no need for strict classes to force them to sit down and receive knowledge. They themselves are absorbing knowledge.

Suddenly, however, all the new mages in the students suddenly raised their heads and collectively looked out the window into the distance. Ren Di frowned, because Ren Di didn't feel anything. Look at the special atmosphere in the classroom. Ren Di asked, "What's going on?" ”

A boy with an active personality preemptively said, "Teacher, there are magic fluctuations in that direction. ”

The new mage was particularly sensitive, not only felt by the people in the classroom, but also by the new mages throughout the city who had begun to concentrate on controlling their own faint magic fluctuations over the past year. When the new magic gradually began to spread, because everyone focused on this talent every day, the phenomenon of magic sensing gradually became deaf at the age of 20 due to the long period of non-use, and this phenomenon has been suppressed since the new magic began to spread. All the new mages maintained, the seemingly useless but laborious sense of magic that the mages of the old mages had worked on. However, with the gradual investment of attention, this perception is only suitable for the perception of a small amount of energy fluctuations, and the specific amount of the huge energy of large-scale magic is still very vague, but the appearance of large-scale magic beyond the usual is like a night light in front of the new mage.

The old mage was casting a large magic from a few kilometers away, and to the new mage, it was like the dragon power erupting on the mountain, making the weak demonic beasts at the edge of the mountain forest suddenly feel something. In fact, Long Wei's deterrence of Warcraft is also this principle, and the instinctive induction that animals have preserved from birth is much more complete than that of humans. However, the monster couldn't suppress the fear in his heart. And the new mage now has an organization.

Several large magic probes in the city quickly operated, and the distance and direction of the fluctuation point were calculated through the electromagnetic measurement of the instrument. A forest fourteen kilometers southeast of the city of Red River. A huge magic array is being carved, and this magic array has not yet been skimmed one by one, and the entire magic circle is only functioning to maintain the fog that envelops the entire forest. In the forest, these self-proclaimed mages are very hidden. There are magic stones inlaid on the huge magic array.

About 32 Grand Magicians gathered here. Begin to depict this huge magic array, which will affect the flow of the Red River when formed. Although the water of the Red River still flows after the magic is formed, more and more water will gather upstream. Blocked by an invisible force field. When the upstream water accumulates to a certain extent, it is released as a violent flood peak.

Large-scale water system magic forbids the angry waves of the river. The cast time is the time it takes to accumulate the energy of the river's water. Many cities on the continent were built along rivers. However, in the ancient age of magic, it was common to use this magic to attack and defend cities. All the great forbidden spells in this world are the accumulation of heaven and earth energy through magical energy. It could never be a sudden explosion of magic in his body.

Any energy transmission will burn once the power is too large, a copper rod, can conduct the electrical energy of a generator set has no reaction, but to conduct the energy power of the atomic # bomb in one second This copper rod flows, and the copper rod will vaporize instantly. Which of the energy levels released by forbidden spells in this world is not comparable to the energy release of tactical nuclear bombs,

In the final analysis, the mage still has the structural basis of carbon-based life, this kind of atomic # bomb energy level energy is suddenly output, even if the human body stores so much energy, with the small body of the human being, to play instantaneous, even the steel body will be emitted by a huge amount of energy, and suddenly evaporate into a gaseous state, so this kind of accumulation of energy through the magic array, with nature itself as the energy warehouse, is the mode of releasing the forbidden spell.

Among this group of mages, the Grand Duke of Razer appeared very conspicuously.

As a big aristocrat, the family background is a little bit. Especially this large magic array, some of its patterns have now been discarded, in the era of the magic tide, this flood torrent was still mixed with hundreds of thousands of water elements, but now it can only be controlled to release the flood and control the main impact direction of the flood peak. Because now there are no Magisters, only 32 Great Magiers. So there's only so much to do.

Razer looked at the huge magic array on the ground with a calm face. He asked the magician beside him lightly, "It will probably take many times to complete the arrangement." The mage next to him said, "Grand Duke, this evening, we can finish carving this magic, and then as long as we wait for three days, we can accumulate enough flood peak energy." As long as this period of time is not discovered. ”

Razer nodded and said, "Covered with dirt and grass, can this circle still work?" The magician nodded and said, "My lord, as long as you put enough magic stones to maintain the energy accumulation of the magic array." That's it. ”

"Well," Archduke Razer asked. The Great Magician had a serious look on his face and said, "My lord, it looks like we've been discovered. ”

Such a large fluctuation of energy contained in a small grove. Although it was only half an hour, the fluctuations were trying to converge, but the new mages on the ships on the river pointed out with great certainty that the forest was not normal.

Ren Di looked at the abnormal fog in this shrub forest. The corner of his mouth sneered and said: "It is foggy in broad daylight, and it is still stuck in the jungle." "The seventy-millimeter gun of a hundred and twenty-ton battleship began to rotate mechanically under electric power. In the waves of the river, the muzzle of the cannon began to sway slightly.

The captain on the side said, "Chief, the entire fleet is ready. "The 13 river defense warships are the strongest firepower of the Red River City built to control the entire river basin. The thirteen steel machines, at this time, under the command of the radio, began to raise the barrels of their guns in unison. The sunlight shone into the bubble chamber with the change of the angle of the barrel, and the chrome-plated rifling made the swarthy muzzle exude an invisible deterrent.

Ren Di looked at the forest and said, "All gun emplacements are ready to fire at any time. The officer on the side asked, "Doesn't the chief need to be warned?" Ren Di said: "It's so sneaky, there is no need to talk about the general battlefield rules." ”

In the misty bushes, Grand Duke Razer looked at the 13 steel battleships on the river, holding huge gun barrels in his direction. There was irrepressible regret on his face, regret that he could not take revenge. "They found out too quickly," he said. Several other magicians asked with puzzled faces, "How did they find out when we entered this forest in the early hours of the morning when no one was around, and the magic traps around us were not triggered?" ”

Suddenly, there was a collective flash of light on the steel battleship on the crystal ball. The black projectile quickly disappeared within the range of the crystal ball, but then the mages heard the whistle of the projectile in the air. The atmosphere of this world is three times that of the Earth, and the speed of sound travels much faster. All the mages unconsciously showed their magical powers, and their bodies revealed various colors of magical light. Some of the rock crystals that grow on the ground try to turn into an earthen pavilion to protect themselves, and some of the surrounding trees become. A rattan ball wraps itself. There was also a cold eruption, forming a shield of ice. There are also high-heat gases that form flame shields, which generate an explosive shock wave to protect against them. The great magician's ability to use knowledge to maximize the use of magic has been crowned in the world and cannot be surpassed.

However, when large-caliber shells fell, these hasty defenses did not really help. The Grand Duke of Razer looked up at the approach of the middle cannonball in the sky, and the white hair on his head suddenly scattered under the wind pressure of the cannonball, and at this time, the eyes of the Grand Duke of Razer revealed frustration.

The shell landed on the spot where Grand Duke Razer was, leaving a huge crater. The projectile slashed off all the surrounding trees. After the first round of volleys, it directly destroyed the huge magic array, and Ren Di suddenly felt the moment the magic array was destroyed, a powerful electromagnetic wave swept across the hull. All telegraph systems made a loud busy sound.

Ren Di suddenly climbed to the place where the Cambridge flag was sent, and used the flag to play the slogan of changing special combustion #Incindiary bombs. Battleships began to massively pour ammunition on this forest. Doing large-scale magic outside the city, and being so sneaky, Ren Di had already guessed what the purpose of these people was. Eighty percent are preparing to launch a magical attack on the city. This is purely an act of terror. If you catch a terrorist, you have to shoot them on the spot.

In less than five minutes, the entire grove turned into a sea of fire. The erected logs burned violently, like purgatory. The fog that had been shrouded in it suddenly dissipated under the flames, turning into a zone of bright and flickering flames alternately.

Seeing that the situation was not good, several mages immediately used their flying magic to fly into the air, ready to escape, but they became conspicuous targets in the eyes of the surrounding surrounding troops. A new mage in an armored car, the Elemental Power Leap Eyebrows, Desperately feeling the source of the magic fluctuations in the sky, adjusted the vehicle-mounted machine gun to the evil high-altitude mode, and fired a spiky bullet into the sky. The big # mage flying in the sky, because he had just taken off, crashed into the metal stream, instantly turned into meat residue, and was hit by a bullet from a hundred and fifty meters in the sky, and fell down more than ten meters later. One of the remaining mages was in a hurry and began to increase his flight altitude on a large scale. Fly towards the southeast.

When the attack will be detected in advance, and the attack has a long waiting time, it is basically useless. It's hard to have a big magic effect in this world. Naval artillery ballistic weapons. Which one outperformed the forbidden spells of this world in terms of attack power, attack preparation time, and attack range. Gone are the days when magic killed people directly.