Throne of Vientiane Civilization

From the perspective of a monarch, Zhou Xu's thinking may not be consistent with that of Qin Fen, a researcher.

Obviously, Qin Fen is smart enough and he knew the answer from the beginning.

It is indeed very tempting to directly skip the steam engine and use the heat energy of the fire crystal to fundamentally solve most of the technical problems and create an internal combustion engine.

But the problem is how much fire crystal is produced?

Let's not talk about the storage capacity of fire crystal. Due to the special mining environment, miners cannot work in the mine of fire crystal for a long time, which leads to the fact that the output of fire crystal cannot be raised at this stage.

Under this premise, you use limited fire crystal to develop internal combustion engines.

Let's skip questions like "Can it be successfully developed?" and "How much money and time is needed for research and development?" and assume that the fire crystal internal combustion engine has been successfully developed.

How many ships can you build with it? How many cars?

If this is an ordinary world, you can make an armored vehicle in this era, and then you may be able to run rampant on the battlefield.

But this is a magical world!

Under normal circumstances, the attacks of warriors in the Hundred Refining Realm may not pose much threat, but it is hard to say for warriors in the Vajra Realm.

As for the extraordinary mages and the sage mages, it is even harder to say, it depends on what kind of mantra spells they have.

Even if it is a sage mages, if he only has the "skeleton soldier control", he will definitely not be able to deal with the armored vehicles.

In comparison, if Zhou Xu put all the limited fire crystals into the manufacture of enchanted weapons.

Even at the moment when the control problem of the enchanted attack of the "Red Flame Saber" has not been solved, he can form an ace force with terrifying explosive power!

It is hard to imagine what kind of troops can withstand that level of attack!

Simply put, Qin Fen's proposal is not cost-effective in Zhou Xu's eyes.

In his opinion, the internal combustion engine that burns oil is obviously more cost-effective, and it will be cheaper to develop new energy in the future.

As for using fire crystals...

How many does he have? The stupid son of the landlord would not do this!

If the output of fire crystal can be greatly increased in the future, or if they find a more suitable ore, then they can consider it.

But now, this issue is not within his consideration.

After Qin Fen left, Zhou Xu, who had a light nap, went out of the palace in the afternoon and rushed to the test site outside the city.

"We pay our respects to His Majesty!"

"No need to be polite!"

After signaling everyone to be polite, the test started directly, and a large vehicle-shaped device was quickly pushed into the site.

This device is somewhat similar to the three-bow bed crossbow, but the difference is that there is a large spoon of full size behind this device.

Needless to say, what was pushed in at this time was a catapult!

Zhou Xu had never been interested in catapults before.

In terms of breaking the city, he had a three-bow bed crossbow that could directly blow up the opposite city gate.

As for the enemy troops, although the three-bow bed crossbow did not have the ability to quickly kill the enemy's troops, the catapult was not much better.

How many people could be killed by that huge stone? Is he just that efficient?

Obviously, he is not, so there is no need to waste manpower and resources to develop this.

But with the development of the explosive barrel, the catapult was given a whole new meaning.

Like the hot air balloon, its value was reflected because of the appearance of the explosive barrel.

However, since their catapult was not intended to be used to throw stones at all, the name of the catapult seemed a little inappropriate, and even made people who didn't know about it feel confused.

So Zhou Xu changed its name to a blasting car! The main function is to blast enemies everywhere.

In order to facilitate throwing, he planned to make all the explosive barrels dedicated to the blasting car into spherical shapes, and directly called them blasting bombs, so that the name was very appropriate.

However, at this point in time, due to the transportation problem of raw materials, there was not enough gunpowder for them to use.

Therefore, the R\u0026D team only filled the blasting bomb with enough weight of gravel to simulate the state of the blasting bomb filled with gunpowder to test the effective range.

According to the current technology of their Great Zhou, it is not difficult to build such a device.

Even this project does not need Zhuang Mengdie to take over. She just hangs the position of "R\u0026D consultant" here, and asks the project team to ask her if they have any research questions, and she herself has never been here.

The whole test went very smoothly. The project team already has the specific data. Their main purpose now is to let their majesty confirm it with his own eyes.

"The effective range of the small blasting vehicle is about 300 meters."

Because the blasting bomb is spherical, it will bounce and roll after landing, so it is more troublesome to get an accurate data.

But it doesn't matter. When it is loaded with a proper blasting bomb, it will explode and cause range damage. This range error is insignificant.

Under this premise, there are small blasting vehicles, and naturally there are large blasting vehicles.

This is undoubtedly what Zhou Xu meant.

To put it bluntly, if you continue to enlarge the size of this thing, its effective range will definitely be farther.

Considering this, Zhou Xu directly asked the project team to develop two models.

In addition to the small demolition vehicle, the other model is the "city defense demolition vehicle".

Just like its name, it is mainly used in city defense battles.

Compared with the small demolition vehicle, the city defense demolition vehicle is much larger, standing there like a tower.

The biggest difference between the two is that the small demolition vehicle is equipped with wheels, which can move with the troops to a large extent.

The city defense demolition vehicle does not have the ability to move, which is basically equivalent to a fixed turret in the city defense battle.

However, in exchange, its effective range is almost 500 meters!

Zhou Xu is still very satisfied with this result.

After watching it, he thinks that there should be four city defense demolition vehicles behind each wall of their Great Zhou.

As for more, there is no need.

Although the things thrown are different, it is essentially a catapult, and it has the same shortcomings as the catapult.

It can only attack enemies within the long range. If the enemy rushes too close, it will be unable to attack the enemy due to the angle of attack.

So, within a specific range, it is enough to give the enemy a proper blow and reduce the enemy's strength. Don't expect it to fight the whole field or end the battle in one wave. It's unrealistic.