Gretel worked hard for half an afternoon of treatment, using up 20% of his mental energy before announcing that the treatment was completed for the day.
Thank God, thank earth, thank you for the well-known rules in this world. The daily spells of a spellcaster are limited, and the caster has to sleep every day to recover the spells. No one will force the healer to work overtime, and forcing is useless...
So at dinner time, Grete closed the stall and claimed that the treatment was over, so no one complained. And he hurriedly took two bites of rice, took today's harvest, and went to the Archmage Serrano.
's door.
"Come in!"
As soon as Grete pushed the door open, he immediately stepped back and cast a bubble spell on himself. The room was filled with smoke, half gray and half white, and the Tyndall effect of the chandelier was very obvious. How many people were having a meeting here just now, and they smoked again.
How much smoke!
It’s simply unbearable!
You have to endure it even if you can't bear it. Grete walked in with the help of the bubble technique. As expected, the room was full of people, filled with smoke, and everyone's face was illuminated like a ghost by the lamp. Archmage Serrano glanced at Grete and said casually
One finger:
"Sit down.—What's the matter?"
"Uh, I'll come back later?" Grete looked left and right. This posture obviously meant that the conversation was not going well, which made a group of old men choke up and smoked desperately. His little things seemed to
Isn’t it appropriate to talk about it now?
"Come here, sit down and listen." Archmage Serrano ordered casually. He had a good impression of Gretel from the previous days of exchanges, and he didn't mind letting this little fourth-level mage join the meeting. He waved his hand and felt a softness.
The strong wind blew out, pushing Gretel to sit on the edge.
As soon as he sat down, a bald magician next to him slapped the table: "Those stinky rocks! They are so stubborn and won't give in at all! Isn't it just ore? The explosives have been given to them, so there is no need to dig them out with pickaxes.
Just drag it out, that’s it, and sell it at a high price!”
"Drink them to death!" Another magician also complained. "Every time we exchange materials, buying food is enough, but we have to buy wine! We also need to buy spirits! As long as a person drinks less, he can dig ten kilograms less.
mine!"
"Can't the mine tunnel be modified? Or, use something to make it easier for them? A magic puppet?"
"You're kidding! That's too expensive! You might as well increase the purchase price!"
The magicians were all talking. Archmage Serrano suddenly remembered something and turned his head to ask:
"Harry, what you said last time -"
He made a pushing and pulling gesture. The magician named Harry shook his head:
"That doesn't work. I tried it for fun, but when I really tried to make it work, the air leakage was too severe and couldn't be sealed. I tried gum, gum, twine, and raw lacquer, but they either didn't work or were too damaged.
quick."
Grete kept listening with his ears pricked up. When he heard this, his heart suddenly moved:
"Sir, what are you talking about?"
"You don't know?" Harry turned to look at him with a strange expression on his face:
"I remember you also used this in your mage tower, and Noward also published a paper——"
As he raised his hand, the phantom immediately rose up and occupied the entire coffee table. Gretel understood immediately:
He knows this thing! Steam engine!
To be precise, it is a reciprocating steam engine. He also built one in the mage tower to generate electricity. It is indeed a good way to use it as power to pull the mine cart up from the mine. If it can be popularized, the labor of the dwarves can
Save most of it, and you don’t have to complain about too much work, but your income has not increased...
But the efficiency of the steam engine is not high. As Master Harry said, most of the steam is leaked. The ability of the twine and raw lacquer to bond is really a headache. It leaks almost while working, and needs to be repaired and sealed every three days.
Blocking. If you want to seal it well, you can only let the transformation mage personally go into battle and use the shaping ability to directly rub it with your hands.
With this method, a magician can make it for fun, but if he wants to put it into industrial production, the cost is simply a joke.
Fortunately, this afternoon, he made an unexpected discovery——
"Look at this!" Grete held out what he had just bought in the afternoon. A bunch of small gray balls, big and small, ranging from the size of a fist to the size of a thumb, slightly elastic. All of a sudden, all the mages focused their attention.
come over:
"Oh, rubber ball. What's wrong?"
This thing is useless. Just cut it from the tree and before it dries, you can also apply it on cloth or the outside of leather shoes to make raincoats and rain boots. After it dries, it has no use except cutting it into small balls like this to entertain children.
…
"Sir, would you like to try using sulfur with it?"
"How to try? Heat it?"
"Uh...probably...?"
Poor Grete didn't know anything except the words "vulcanization reaction". What is the ratio of rubber to sulfur, whether it needs to be heated, to what degree, whether a catalyst is needed, and whether it should be placed in a solvent. He was completely at a loss...
He didn’t study chemical engineering!
Fortunately, everyone present, except Archmage Serrano, also had two mages from the school of transformation. Each of the three people took a rubber ball, added sulfur, and played with it in different ways.
There are dots of stars in the void, rolling around. Gray rubber, light yellow sulfur, are kneaded into a ball by invisible hands, and there are flames, electric lights, and various energies shuttling back and forth. Some are emitting black smoke, some are emitting flames, and some are emitting black smoke.
scattered into fine sand. Grete looked left and right, sighing secretly:
The mage deserves to be the most productive person. He really doesn't have the ability to react chemically with his hands...
Three magicians came up with more than a dozen plans at the same time. If one method didn't work, they would switch to another one, and if it didn't work, they would switch to another one. The left and right sulfur was a stock material, and the rubber ball was contributed by Gretel, so it can't be wasted.
Soon, Master Harry shouted in surprise:
"Changed, changed! Softened!"
He summoned the mage's hand and rubbed it back and forth in the force field, kneading the softened rubber. He squinted his eyes and felt it for a while, then suddenly patted the space bag and poured out a half-person-high and one-person-long ball.
steam engine.
The rubber in his hand changed shape arbitrarily, suddenly flew up, and smeared a solid layer on the steam engine.
Before Grete could react, there was a gurgling sound, followed by flames rising. The steam engine roared, water vapor rolled, and work started!
The mages remained silent. Everyone could see that this rubber ball with added sulfur has good elasticity, density, and heat resistance, and is very suitable for use as sealing material on steam engines. The only problem now is to see
How long can it last?
besides……
"How much of this material is there?"
Grete picked up a corner of the space bag and poured it down. Balls of various sizes rolled out one after another, and soon there was a pile of half a square meter on the coffee table. He spread his hands:
"That's all. I bought them all in that store."
Just, it was a coincidence that such a useless thing could be brought to the Dwarf King's City...
In any case, with suitable materials, there is a plan. After two days and two nights of continuous testing, the magicians have been able to determine:
As a sealing material, rubber is much better than the previous raw paint + twine.
That’s fine. Natural rubber and the like can be imported on a large scale. While others don’t know the use, hurry up and buy the goods! Scan the goods!
So, when the negotiations resumed, Archmage Serrano slammed the table and refused to give in:
"It's impossible to reduce the price of ore! - At worst, we will provide a batch of power to help you drag out the ore!
By the way, let’s order a batch of machines like this..."
Steam engines can be imported in large quantities! It’s time to place an order! The craftsmanship of the dwarves is still worthy of trust!
Perfect!
****
Happy Mooncake Festival!
I don’t know what I was thinking at noon, but I actually wrote it as Zongzi Festival...
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