Chapter 1449: Originating from the Night of the Curse (7)

"So," Harry deliberately ignored the dragon and said to the children instead, "I've finally finished visiting the alchemy workshop, this is the first stop, you all know a little bit about the basics of magic, right?"

Husky and Hal smiled evilly and nodded.

"Hey, don't ignore me?" Evil Star grimaced.

"As you know, alchemy is the basis of magic, and almost any kind of magic requires a little alchemy. Harry ignored the evil star completely, and continued: "However, alchemy alone is obviously not enough, right? The wonderful thing about magic is that it can change in a thousand ways, so it must be added to the alchemy, and if there are raw materials and then there are changes, it can be regarded as a complete magic." ＂

He pushed out the back door of the alchemy workshop and led the group down a long corridor: "So, children, can you answer me?

"Husky knows, Husky knows Wang!" The canine boy couldn't wait to raise his hand: "It must be the elemental change Wang!"

"Elemental change? The night demon frowned, and looked at the dog boy rather unhappily: "Aren't you the son of Miss Lianyin, Lianyin is also a high-ranking magician, why didn't she even tell you such basic magic knowledge?"

"Uh!" Husky stuck out his tongue, "Mommy said Husky is an orc, and he can't use magic in his life anyway, so he hasn't taught Husky anything." ＂

"Yes. The Night Demon raised his eyebrows, "So you're self-taught, what the hell is elemental change, hahaha." ＂

The canine boy pouted, "Isn't it, Wang? Husky can often see Wang when he plays video games." There are generally fire-based magic, water-based magic, wind-based magic, thunder-based magic, and earth-based magic in the game. ＂

"What is a video game?" Harry asked, as if he didn't know anything about it.

Husky and Hal looked at each other again, incredibly incredible. In the modern age of science and prosperity, there are still people who don't know what a video game is?!

"Anyway, the people who tell you this kind of thing are just a bunch of laymen who don't know anything about magic, and even the most basic concepts are wrong. The Night Demon lashed out mercilessly, "Actually, the simplest word to sum up the variation of magic is [entropy]. ＂

"What is entropy?" asked Husky and Hal at the same time.

"Entropy is a variable that describes the degree of chaos in a system. The higher the entropy, the closer it is to absolute [chaos], and vice versa, to tend to [order]. The Night Demon continued, "I ask you, what exactly is the so-called fire magic?"

"Hmm...... Make a flame, huh?"

Harry shook his head.

"Is it to make a heat meow?" replied the leopard boy Hal instead.

"Yes. The Daredevil went on to explain, "That's entropy change in the thermodynamic sense. The so-called [heat] is actually just the vibration of countless material molecules in the microscopic world. The more violently this molecule vibrates, the more chaotic the system within the same substance will be, and the greater its entropy. ＂

"I always feel a little bit understood...... Husky muttered under his breath.

"We've seen the actual operation in detail. Harry walked to a large room and pushed open the door, "This is for the training and study of low-level magicians, [Entropy Laboratory]. ＂

Compared to the previous room of medium size, what greeted Husky and the others was a room that was three times larger. There are countless complex instruments that people can't read and guess, and there are countless dashboards and numerical meters on them, which are estimated to be mostly used for measurement.

The canine boy focused on a nearby instrument. There, a mage casts a spell on the iron plate on the instrument, which is heated to a red-hot state, and the light emitted is particularly conspicuous. Needless to say, the mage was practicing "fire magic".

However, that's not all there is to the exercises. Husky was walking two parts, and when he looked from another angle, he happened to see another mage on the other side of the iron plate, who was also casting spells on the iron plate. Instead of heating the iron plate and making it shine, the mage was casting a freezing spell on the iron plate, covering the thick iron plate at one end with a layer of white frost.

It could be some kind of showdown for training purposes. One end was cold and the other was scorching, but the center of the thick iron plate remained at room temperature, and it was estimated that it would be until the mage of one of them was defeated.

"As you can see, the entropy change in thermodynamics is actually two-sided, the positive entropy of thermodynamics is scorching, and the negative entropy is cold. Whether it's cold or hot, it can be easily achieved by consuming photons. ＂

Harry glanced at Starlight Dragon, "The most common fireball technique you see also requires the use of entropy magic. To put it simply, it uses alchemy to first draw enough fuel out of the air – usually oxygen and hydrogen – and then ignite the oxy-hydrogen mixture using entropy to create a blazing fireball. ＂

"What about ice archery?" asked Hal as he suddenly remembered the magic tricks that the little fish-man prince often used.

"The principle is pretty much the same. Alchemy is used to extract water vapor or nitrogen from the air, and then negative entropy is applied to freeze the water or nitrogen, turning it into a low-temperature ice arrow. The Daredevil blinked, "Of course, in order to make the ice arrows sharper, there is also a problem of shaping. This involves the entropy change of dynamics, which is what you have long said [wind spells]. ＂

Harry stretched out his hand and pointed into the distance: "Look over there." ＂

The Dog Man Boy and the Leopard Man Boy turned their scalps at the same time, looking in the direction of the Night Demon's finger.

There's another kind of experiment, another kind of training instrument. There, a low-ranking mage casts a spell on a windmill-like instrument that spins the windmill.

"Can someone analyze what he's doing?" asked the Night Demon like a teacher.

"Are you using magic on the air to make it move?" Husky tried to reply.

"Yes, that's right. Harry nodded with satisfaction: "That's the entropy change of dynamics, or kinetic magic."

To put it simply, it is to exert a force in a fixed direction on the molecules of an object to make the object move. Since there is a directional difference, there is no need to consider whether it is positive entropy or negative entropy, and the kinetic energy magic that is generally talked about is calculated by vectors. ＂

"It looks very simple, Wang. Husky wagged his tail. If he just used magic to make the air flow in the same direction, he could do it...... If only he could use magic.

That's not true. Kinetic magic can be simple when it's simple, but it can also be incredibly complex. The Night Demon shrugged, "I think you should have guessed that the alchemy you've seen before is also a kinetic magic in the end. Separating one substance from another is generally done by kinetic magic. For example, the purification of hydrogen. The air is mixed with hydrogen, oxygen, nitrogen, carbon dioxide and hundreds of other trace gases. In order to extract only hydrogen from these gases, we are screening and separating the hydrogen molecules in the air one by one. Do you know how difficult it actually is to do that?"

Husky stuck out his tongue and was silent.

"By the way, the dragon's most complacent and proud flame dragon breath is actually extremely rough. They seldom separate flammable gases from the air so precisely, but instead do the opposite, pumping non-flammable inert gases out of the air, such as nitrogen. In this way, the combustible gas with a lot of impurities left becomes the fuel for the dragon's breath, and the casting process can be described as very labor-saving, and it is also unsightly crude. ＂

The Evil Star glanced at Harry, and a green veil appeared on his forehead.

"Aha...... Seeing that Uncle Evil Star was about to quarrel with Harry again, Hal immediately changed the topic and said, "Hal knows what wind spells are." But there's really no earth-based spell meow?"

"So what is earth magic, and who the hell do you listen to to to come up with that kind of mess? Moving dirt and rocks on the ground with magic? Isn't that also a type of kinetic magic?"

Hal tilted his cat's head and thought about it, as if that was what it was. All magic tricks that rely on moving objects to attack are actually applications of kinetic magic. Even Calvin's Little Prince's Ice Archery has a part that uses kinetic magic to launch ice arrows.

As a result, kinetic magic should be the most widely used and frequently used among all magic tricks. ＂

"What about other than that?" Husky asked, "are there any other types of magic?"

"Absolutely. The Daredevil took a few more steps forward and continued, "In addition to thermodynamic entropy and kinetic entropy, there is also a very important division of spells, which is electromagnetic entropy. To put it simply, it consumes photons to change a positive or negative charge, and uses the potential difference to produce a discharge phenomenon. ＂

"Oh yes, Thunder Magic Wang. Husky laughed.

"Barely so. "Electricity can actually be converted into heat or kinetic energy, so the magic of electromagnetic mechanics can be very complex. Moreover, living organisms are inherently capable of generating electricity, which is the main medium of nerve conduction. Because most organisms generate electricity on their own, they are disturbed by their own abilities, so they are less able to control the magic related to electromagnetism. ＂

"Uh, isn't thunder magic weaker than other magic tricks? ＂

"Not exactly. One of the most interesting features of Thunderbolt is that it is guaranteed to hit anything that can be a legitimate target. Because lightning travels through the air inherently close to the speed of light, and it doesn't need to travel in a straight line. Lock on to an opponent and release a thunderbolt, and the opponent will actually be absolutely unable to dodge and will inevitably be hit. ＂

"Isn't the thunder and lightning magic invincible?"

"It's not. There is no such thing as an invincible move. The same goes for spells, where there are advantages there are bound to be disadvantages.

First of all, creating a high voltage that can directly kill the opponent is also a very dangerous thing for the caster. I don't know if the thunderbolt didn't hit the target, and in turn chopped the mage himself to death;

Second, while Lightning's attacks are so fast that it's almost impossible to dodge, they can easily be blocked by force fields such as shields. If the opponent consciously releases a shield to protect himself during the battle, the attack of thunder and lightning will be useless to the enemy;

The third and most important point...... In fact, in order for lightning to hit accurately and hit the target, a certain condition needs to be met - the electric potential difference. For example, if the lightning emitted by the caster is a positive charge, then the target should have a large amount of negative charge on it to ensure a hit. Otherwise, most of the objects in this world carry different degrees of unpredictable charges, and the lightning emitted can hit any object, and it is impossible to control it at all. ＂

"Well, isn't this kind of magic useless?"

"Not necessarily. As long as you know how to control it, lightning magic can easily hit the target. The Daredevil continued, purposefully leading the group to another corner of the lab, "It's easier for you to see for yourself than my explanation. See, that's the proper use of lightning magic. ＂

Husky turned a corner and looked in the direction that Daredevil Harry was pointing, only to see a training facility that resembled a shooting range.