Release that Witch

“So, do you think that there in the glass is nothing at all?” Roland asked, then he poured the limewater into the basin, the limewater soon flooded into the glass, but it finally stopped when only half was filled.

This experiment was so classic that most elementary school teachers liked to use it as an experiment to increase the interest of the children in natural science. Roland could still remember the shock he felt when his own teacher had demonstrated it. From then on he embarked on the road of science and engineering, with no way to return.

He gently lifted a corner of the glass, and after a few moments bubbles of air could be seen rising out of the limewater.

Then, the clear limewater appeared to be a little bit cloudy, and a little white cloud slowly spread within the glass.

“If there was nothing in the glass, we wouldn’t have seen the changes in the limewater and the air bubbles. This shows that the air contains at least two different kinds of gases. In fact, burning a candle consumes only a part of the air, while the other part is unable to burn. Though it is colorless and odorless, like the former gas, its nature is the complete opposite.”

“Well… That seems to be the case,” Carter thought for a long time to figure out the relationship between the two, “but to know this, what is the use of it?”

“If you can get the former gas, you can let the flame burn longer, and when you obtain the other gas, you can quickly extinguish the flames!” Anna suddenly said.

She was simply a genius, Roland praised her in his heart. Even though there was a small fallacy, when hearing of the different properties of the gases, she could immediately think of several uses. This idea was definitely genius-level. Roland knew that she did not receive any modern education, but even without it, she could quickly think of this point, showing her extraordinary logic ability — at least she was far better than this chief knight.

“Right, it is possible to say that since humans learned to use fire, they were separated from the animals, even though obtaining fire was just a coincidence. Perhaps the lightning hit the trees and lit them, perhaps a rock hit another rock and released a spark. But if no one had noticed it, no one could have tried using it. We would still be the same as the animals. Roland guided them patiently and systematically in the direction he wanted, “The goal of this experiment was to show you that curiosity and thinking were the driving forces of human progress. There are many of similar potential forces in nature, only waiting for us to discover and use them. “

After his speech, Carter still had a doubtful look. Nana was one of those types where it was unknown if they were asleep or awake, and she only looked at Roland with open, unfocused eyes. Only Anna bowed her head, as if she was thinking about something.

Well, Roland sighed, indeed, teaching too far ahead of the ideas that they understand will not bring enlightenment; it will only make people feel perplexed. The height of their knowledge determined that they couldn’t understand the powerful force of nature unless it was physically in front of them. Then they would understand how amazing the nature of the hidden forces in the world were.

At this moment, the kettle hanging from the mantel gave off a clanging sound, it was the sound of a steam pinging against the lid.

“Ah, the water is boiling.” Carter walked over to remove the kettle with a fork, and soon the sound stopped. He took a piece of cloth and wrapped it around the handle, then filled everyone’s cups with water.

For example, when Roland reached out with his hand to hold the cup, he could feel the temperature of the cup wall. From the first day of using fire, the principle of boiling water was known. “Boiling water”, hundreds of thousands of people had witnessed this and used it but no one thought that the gently curling and rising water vapor could also contain such a tremendous amount of energy.

In a few hundred years, this would become the driving force behind humankind’s development; in a very short period of time it would change the history of mankind. Although the principle was simple, the problem was not the limited technology. No, the problem was that the first choice for most people was to farm. But Roland was different from them, he thought, this world also had witches. Using magic to fight in a battle? That was only the way of barbarians… with magic someone could create, it could replace some of the key technologies to hasten the process of human development. This was the correct way to use magic.

They talked until the sun went down, and after they had eaten dinner together, Roland went to his bedroom.

There was no nightlife to speak of in this day and age, people didn’t even have a word for it, and everyone went to sleep early. He also considered using his right as the prince to recruit a maid to do the sport, but in the end he couldn’t because he was too thin-skinned to speak out.