If an official wants to have his own place in the court of Da Qi, he must be at least 40 years old.
If we also consider people's eye hygiene issues in this era, there are many potential users of reading glasses.
Moreover, compared with myopia glasses, the requirements for the degree of reading glasses are not so strict.
Generally speaking, the degree of reading glasses is calculated based on age.
Generally speaking, patients aged 40 years old wear reading glasses with a power of more than 100 degrees, and the power of the reading glasses increases by 50 degrees as they age by five years.
Preparing glasses for such a group of people can save the trouble of eye examination.
This is the new way Lu Chen has opened up to make money. These old guys are really rich. Who else can he cheat if not them?
Especially the princes and nobles, in order to show their status, they would rather spend more money than use ordinary frames.
By then, we will provide them with single-lens glasses and gold-rimmed frames to fully satisfy these rich people's pursuit of the most expensive life instead of the best.
Lu Chen did not feel any psychological pressure at all when it came to slaughtering these wealthy dogs.
In the previous life, glasses like those with Tyrannosaurus designs could easily sell for tens of thousands of dollars a pair, and no one said anything about it at that time.
Calculated in terms of purchasing power, two hundred taels is roughly equivalent to 140,000 RMB on Earth. This business is really exciting.
Of course, this is the imperial court after all, so it’s better not to discuss business matters here openly. So after saying this, Lu Chen stepped aside and remained silent.
At this moment, the Minister of Justice, Xu Yan, stepped forward and bowed, saying, "Master Lu, the White Lotus Cult has recently revived and is rampant in places like Jiangnan! Our people have reported many of the White Lotus Cult's ghostly tactics. I wonder if Master Lu could explain this to us?"
Lu Chen searched his memory for the so-called White Lotus Sect and roughly understood what kind of illegal association it was.
If you want to talk to him about profound astronomy, geography, or Confucian classics, Lu Chen will definitely not respond.
But when it comes to the deceptive tactics of these charlatans, Lu Chen feels that he can indeed talk about it for a few dollars. After all, he once watched a program called "Into Science".
So Lu Chen nodded with a smile and said, "I wonder what Master Xu wants to ask?"
Seeing Lu Chen's cooperation, Xu Yan was delighted and said, "The people below reported that those demons from the White Lotus Sect can imprison ghosts and monsters in yellow paper and kill them with peach wood swords. I wonder if Master Lu understands the key to this."
Lu Chen breathed a sigh of relief. He had thought that people of this era could have some advanced skills, but after all this fuss, these were just leftovers.
"It's just some little tricks. Wait for me for a moment, everyone. I'll go get something ready."
These so-called White Lotus magics are usually just basic applications of chemical principles. The civil and military officials of the Great Qi Dynasty may have no concept of chemistry, so it is difficult for them to understand if you explain it to them verbally. It is better to let them see it with their own eyes.
Soon, under everyone's expectation, Lu Chen walked back into the hall with the things in his hand.
He shook the yellow paper in his hand and said, "Now I will show you how to trap an evil spirit in this paper and then kill it with a peach wood sword."
After saying that, Lu Chen nodded to Mou Ping beside him. Mou Ping carefully unfolded the yellow paper and held it in his hand.
Lu Chen took out a gourd from behind him, poured a mouthful of unknown liquid into it, first sprayed it on the peach wood sword in his hand, and then sprayed it fiercely at the yellow paper.
Under the horrified gaze of the crowd, a hideous evil ghost's head soon appeared on the yellow paper.
For a moment, the entire court was in an uproar, and countless people widened their eyes, staring at Lu Chen and the yellow paper.
At this moment, they had countless questions in their minds that they wanted to ask Lu Chen, but they didn't know how to start.
However, the shock Lu Chen brought to them did not end there. Lu Chen waved the peach wood sword in his hand and lightly scratched the yellow paper in Mou Ping's hand. A red blood mark appeared on the evil ghost's neck.
It was as if Lu Chen's casual sword strike had actually cut off the evil ghost's head!
After doing all this, Lu Chen put away the peach wood sword in his hand and looked at the Minister of Justice Xu Yan and said, "Master Xu, this is the kind of trick you are talking about."
Xu Yan has been reading books of sages since he was young, and he is very clear about the principle that Confucius does not speak of strange things, gods, or supernatural powers.
He had heard of the various methods of the White Lotus Sect, and had seen many ghostly tricks in these years while in charge of the Ministry of Justice.
But now, watching Lu Chen in the hall, in front of all the civil and military officials, saying that he had caught an evil ghost, he actually caught an evil ghost. He said that he would kill the evil ghost, and he actually made the evil ghost bleed. This action was enough to subvert his three views.
Facing Lu Chen's question, his legs trembled a little as he said, "I haven't personally seen how the demons of the White Lotus Sect perform their actions, but I imagine their methods are not much different from those of Master Lu. I don't mean to belittle Master Lu, it's just that all this is too unbelievable."
Seeing Xu Yan wanted to explain something, Lu Chen smiled and waved his hand, saying, "Master Xu, there's no need for that. This isn't some kind of immortal technique, much less a sorcery. It's just some ordinary natural phenomenon. Now, I'll explain to you all in detail some of the natural science principles involved."
Lu Chen pointed at the yellow paper in Mou Ping's hand and said, "This isn't just any yellow paper. It's one that's been dyed with turmeric water. As for the ghost image you see on the paper, I had someone draw it on it with alum water beforehand."
My dear, there is more to this chapter. Please click on the next page to continue reading. It will be even more exciting later!
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