The first law of thermodynamics, which states that heat can be transferred from one object to another, can also be interchangeable with mechanical energy and other energy, but in the process of conversion, the total value of energy remains the same.

Its essence is the law of conservation of energy.

Whether it's Monica or Allen, the essence of the ability statement is the increase and decay of thermal energy. But it doesn't really need other energy, such as fuel, it actually needs mana, or become magic.

Monica and Eren consume magical energy, which is converted into heat. Substituting it into the first law of thermodynamics, juxtaposing magic energy with mechanical energy and other energies is also logical.

Even if Veronica's material manifestation is not out of nowhere, but a certain transformation effect of magical energy, the magical energy dissipates, and the item will also dissipate.

It can be seen that magic energy is also an important part of the law of conservation of energy.

Monica and Allen's abilities will be the key to harnessing thermal energy.

How powerful is thermal energy?

Let's just boil water and boil it for example. It's just that people have the impression that the internal combustion engine that uses oil is more advanced than the steam engine, but in fact it is not. The real high power, such as the engines used in ships, warships, and even aircraft carriers, steam turbines still occupy an important position, and even nuclear power, the essence is still to use the thermal energy of the reactor to boil water.

To put it in a less rigorous way, the history of human energy use is a fancy study of how to boil water more efficiently.

The emergence of Monica provides a new way of thinking.

Use magic energy to boil water.

The crystal ore currently in my possession is the fuel for mana.

If the conversion efficiency of magic and heat energy is high enough and strong enough, combined with Veronica's sigil, then a new generation of magic energy reactors is not impossible.

Four-star witch, no scrap wood.

What a treasure!

No wonder it was hidden so deep that it was almost missed.

Looking at the brothers and sisters in their sleep, their suffering is completely over today, and they will be greeted with a bright future.

......

Blackstone Arsenal.

Dozens of apprentices rushed to work overnight, using more than a dozen simple cartridge case stamping machines and bullet dosing machines, and nearly 3,000 rounds of ammunition were produced, all of which were loaded.

Most of this ammunition is supplied with machine guns and machine guns, as these two weapons are simply gold eaters.

The machine gun was cool for a while, and the crematorium was pressed.

Bullets are not enough to be manufactured, and more manual loading into the chain is required. To this end, almost all possible manpower in Daotan Town has been mobilized to suppress the bombs.

In this way, the machine guns of the eighteen bunkers could only be allocated one chain of 100 rounds each, and 1,800 rounds of ammunition were used. Then there were three machine gun forts, each of which used up 600 rounds of large-caliber special bullets, with an average of two chains of 100 rounds per fort.

The remaining 600 rounds of ammunition are the regular shotguns used by the soldiers, plus the bullets accumulated some time ago, each front-line soldier can only get less than 20 rounds of shotguns.

Fighting a war is actually a money, if it weren't for the fact that the bullet casings would be recycled after every battle in the past, with the copper reserves of the Black Stone Collar, it would not have been possible to make so many bullets.

In order to supply the blaster powder that makes bullets, the number of Hive Spiders has also increased from 10 to 40. The spider factory is located in the wind-eroded cave in the Black Rock Canyon and is under the direct jurisdiction of the military.

According to the aerial reconnaissance of the bald eagle, this time the orcs gathered a large number of troops, the number of orc warriors alone is about 600, and it is speculated that there are at least 100 blood warriors, 3-5 orc centurions, and 6 blood dinosaurs, as well as a very strange thing.

The reason why it is strange is because the individual of the thing is very large, larger than the blood dinosaur, the huge and bloated body, the appearance is very strange, it looks like a big meat worm, and it is covered with caterpillar-like spikes, and there are warlocks on the short and thick gastropods to crawl.

The arched upper body has two pairs of thick arms, holding a giant long-handled sawblade made of black iron, a spiked war hammer, a mace and a chain hammer, and a rough and heavy shield-shaped iron armor hangs on the chest, and the most terrifying thing is the head, strictly speaking, countless heads—densely packed with dozens of orc heads, even the flesh of the belt is gathered into irregular balls of meat, each head seems to be alive, constantly roaring, each making a different angry expression.

New class, name unknown, ability unknown.

The only consolation is that this thing is so big that it can't hide it, and it doesn't move very fast.

There is no doubt that the Holy Spirit has withdrawn from Daotan Town, and the only mortal enemy of the orcs is Blackstone Collar, and only Blackstone Collar can provide blood food. They had no choice but to exhaust the Blackstone army with all their might, but to consume huge amounts of food every day. 100 Literature

Food is the weakness of the orcs.

They must rely on killing and plundering to survive and grow.

Similarly, the Blackstone Collar has no way out of retreat except to face it.

It was destined to be a battle of fate.

Winner, blockbuster.

The loser is slumped.

Horse-drawn wagons arrived at the front line and quickly began the distribution of ammunition. One of the wagons, carrying several wooden crates, drove directly into the command fort, loaded with a new weapon, a grenade.

In the case that a large number of mines could not be arranged, Qin Song urgently needed a weapon with strong range lethality, and grenades came into being. Its manufacturing principle has many similarities with mines, using a firing pin to fire, adding a time-delay fuse, filling the warhead with blasting magic powder and steel balls, and the shell adopts a melon-like design, in which the explosive shell will quickly disintegrate into fragments.

The use is also very simple, hold the wrench, pull out the safety ring, and throw it directly, the detonation time of the delay fuse is about 6-8 seconds.

The arsenal has limited manpower, and most of it is making bullets. As a result, the production of grenades was limited, and less than 80 grenades were produced in a hurry.

And, there is an important question.

The power of the grenade is indeed very large, but throwing the grenade is not a simple thing, rashly issued to the soldier who has not been trained to throw bombs, it is very likely that accidents, such as tension, hand slip, angle, throwing distance and other problems, resulting in the grenade falling on their own defense line, its powerful power will eat itself.

Qin Song didn't want to see a group of novices throw grenades in their own defense lines, exploding and blooming.

The only 80 grenades were used to equip the Armored Warfare Team led by Hunn. The reason is very simple, the special combat team is not in the conventional line of defense, and the physical and psychological qualities of the soldiers are carefully selected, and the strength is also blessed by armor, the throwing distance will be multiplied, and correspondingly, the detonation time will be extended to 6-8 seconds.

If you take 10,000 steps back, even if your hand slips and you don't throw it out, the special combat team members will have armor protection, and their lives can be guaranteed.

In order to win this crucial battle, Qin Song also racked his brains and spent his blood. Even the main body has returned to the sea area of the dock, and once the situation gets out of control, the possibility of a direct landing operation of the main body cannot be ruled out.

After all, I really can't afford to lose.

Aside from the emotional factor with witches, the hard-working base, agricultural and industrial problems have been solved to a certain extent. Once lost, it is too difficult to make a comeback.

As a Chinese person, love for home is engraved in the bones.

The black stone collar is now Qin Song's home.

"Commander, is this what you call a new weapon?" Hunn surveyed the box, neatly lined up on thatched-padded grenades.

"Yes, you could think of it as a hand-held anti-orc blaster. But the difference is that this weapon does not need to be buried, it only needs to be thrown, and the power of falling into the crowd is amazing. Qin Song took out a grenade from it, and in order to adapt to the strength of the strong armor, it was deliberately enlarged, and it was twice the size of a normal grenade, and while it was easy to hold, the power was also greatly improved.

"I see, this is the special training project that you asked me and the team to complete the other day. ”

Huen nodded, the special combat team belongs to the elite of the elite, and the combat mode is different from that of regular soldiers, so it has always been a separate closed training. Just a few days ago, Qin Song sent someone to send a batch of grenade models, although the appearance is somewhat different from the current grenade, but the basic structure is the same, that is, there is no charge.

After learning about the bomb dropping procedure, the special combat team members, totaling 12 people, stepped up their simulated bomb throwing training.

"How's the team doing?"

"The throwing procedures have been fully mastered, the average throwing distance is more than 100 meters, and there is basically no problem except for further practice and adaptation on the quasi-head. ”

"Distribute all of this and get used to the feel and weight as soon as possible. ”

Who can make perfect, the training of accuracy is not overnight, and Qin Song does not have too many requirements: "Orcs are used to night battles, their vision itself is limited, and their accuracy will further decline." However, it's not like there's nowhere to start. Remember those massive blood dinosaurs?"

The corners of Qin Song's mouth hooked up a smile: "The orcs have suffered the loss of the anti-orc blaster, they will definitely take the blood dinosaur as the pioneer, and the rest of the orcs will gather together and advance along the route that the dinosaur has passed." ”

"All you need to do is aim for the area where the Blood Dire is located as the main throwing area. ”

Hunn's eyes lit up when he heard this: "I understand, the orcs only have six dinosaurs, each of which has a limited coverage, and their line will not be too long. So, I dare to conclude that behind the dinosaurs, there is a dense concentration of orcs. ”

Qin Song smiled and patted him on the shoulder: "War is not only a contest of strength, but also a contest of wisdom. Remember, there are not many such weapons, and one is less than one wasted. I believe that you, and the players, can find the right time to make great achievements. ”

"The stars will not be extinguished, and all evil will be punished!" Hunn immediately stood up straight, raised his hand and gave a standard military salute: "Guarantee to complete the task!"