Boom!
Boom!
……
A succession of explosions sounded.
Five scarecrows, five meters, seven meters and ten meters away from the explosion point.
There are two scarecrows of seven meters and ten meters, one of which is covered with armor.
At the end of five test explosions, the scarecrow of five meters and seven meters was obviously damaged and basically in a non adult state.
However, when the distance exceeds 10 meters, the power of the explosion decreases significantly. The scarecrow in a circle has no obvious damage except being obliquely inserted into the ground by the air wave.
As for the two test explosion points covered with armor, iron beads were added to the explosive bag according to Arthur''s instructions.
At a distance of seven meters, the iron bead can basically penetrate the plate armour, but can not penetrate the lock armour behind the plate armour. At a distance of ten meters, penetrating the plate armour is the limit of the iron bead.
Arthur knew that his explosives were fake goods, so he wanted to add iron beads to enhance his lethality, which was mainly used to deal with Warcraft.
The result of the test explosion made the Knights rejoice. Arthur stood aside and looked at the crater on the ground. Although he was disappointed, he could only accept it reluctantly for the time being.
He didn''t want to make more powerful explosives, but neither nitroglycerin nor trinitrotoluene (TNT) can be made by Shanghe collar.
To make nitroglycerin explosives, we first need to prepare nitric acid and glycerol.
To prepare nitric acid with sufficient concentration, in addition to existing mirabilite, concentrated sulfuric acid is also required.
To prepare concentrated sulfuric acid, a large number of sulfur minerals, such as sulfur and alunite, need to be used.
Nitric acid, then glycerin.
The preparation of glycerol requires oil and caustic soda.
Oil gold coins can solve the problem. The problem is caustic soda.
For industrial preparation of caustic soda, Arthur first thought of the "causticization method", that is, caustic soda solution and caustic mud are prepared by causticization reaction between soda solution and lime.
Lime is common, but the problem is that soda ash is needed here!
Soda ash, the simplest way is to dry the algae, burn them into ashes, and then soak and purify them in hot water.
Only in this way, the prepared soda ash is not pure and the amount is small.
Arthur already has mirabilite. He plans to calcine mirabilite and limestone at high temperature, and then obtain high-purity heavy soda ash after leaching, evaporation and refining.
This is feasible, but the problem is, we need a furnace that can keep high temperature!
……
Therefore, if Arthur wants to make high-efficiency explosives, he must prepare all the "three acids and two bases" except hydrochloric acid, and face various problems during the period.
Such as the simplest labor shortage
In short, this is a task that takes time to complete. Before that, Arthur can only make do with his own soil explosives. After all, Warcraft will come every year. Some are better than none!
Different from Arthur''s calm, the mercenaries who watched the five test explosions left a great shock in their hearts.
They never thought that this thunderous power could be made and mastered by humans, and it happened that this person was their count, and such power would also be used for them to resist Warcraft.
There''s nothing happier than that!
Looking at the people who clapped each other''s shoulders with excitement and joy, Arthur smiled and scolded, "Hey, hey! Do you guys need to be so excited? Each one is like eating honey."
After being scolded by Arthur, the Knights still smiled excitedly, answered positively and looked at him respectfully.
"Good cold knight, now all fools!"
Arthur shook his head in a pretentious way, sighed and turned to plant 3.
Plant No. 3 is a transverse rectangle. The river divides the plant into two. The wooden support and straw roof are the main body of the plant. In addition, there is only a wind barrier less than two meters high around.
Plant No. 3 is very simple, but the things inside are by no means simple.
"My Lord!"
"Lord count!"
……
As soon as Arthur entered the factory, more than ten workers immediately stopped busy.
By the river, driven by water conservancy, the water wheel is rotating with a metal cylinder, while in front of the metal cylinder, a center is fixed and pushed forward slowly, cutting the tools inside the cylinder.
Under the knife, the metal in the cylinder is like an apple being cut, and the metal strips like silk threads are bored. Although this scene is far from as surprising and shocking as watching the explosion before, it is completely free. It does not need manpower or animal power. The scene of metal cutting metal is also enough to open the eyes of the accompanying Knights!
After enjoying it, Arthur asked the workers aside, "what is the latest accuracy?"
The worker is a young bachelor who is mainly responsible for observing and recording data.
Hearing Arthur''s question, he immediately replied loudly, "Lord Arthur, the latest accuracy is three centimeters per meter! The cylinder being bored now should be within 1.5 centimeters per meter!"
Cylinder? what is it? The knights were puzzled.
Hearing the workers'' report, Arthur nodded with satisfaction, and a look of joy appeared on his face - an error of 1.5cm per meter. Such accuracy should be enough!
In addition to gunpowder, the steam engine is absolutely an essential invention.
In the 18th century, it was precisely because watt improved the steam engine and brought efficient driving force to the world that the first industrial revolution began!
The principle of the steam engine, in other words, is the process of burning the boiler and converting the energy of steam into mechanical work.
However, although the principle is simple, this does not mean that making a steam engine is simple. This is just like Arthur knows the chemical reaction formula of three acids and two bases, but limited by conditions, he can''t prepare them industrially.
The biggest difficulty in manufacturing steam engine is the tightness of cylinder and piston, which is the key to whether high-pressure steam can be formed and converted into mechanical work.
In the era of pure manual forging, it is impossible for a blacksmith to create a cylinder with smooth inner wall and qualified tightness.
At this moment, we need a machine for manufacturing machines - barrel boring machine! That''s the machine Arthur sees now.
This barrel boring machine uses a water wheel to rotate the material cylinder and align it with the tool fixed in the center. Due to the relative movement between the tool and the material, the material is bored with cylindrical holes with high accuracy, so as to meet the manufacturing of various compact machines, including cylinders.
After looking at the cut wire for a while, Arthur asked Walter: "how many more parts need to be made by the boring machine, about a few days? In addition, have all the parts from the forging factory been sent?"
"Sir," Walter replied quickly, "the parts in charge of the forging factory have been manufactured, and all of them were delivered to the warehouse next door last evening. As for us, in addition to the current cylinder, there are some parts that need fine machining, such as connecting rods. It is estimated that it will take at least five days to assemble the steam engine."