Cheng Sanlang looked at this guy and couldn't help but give a suggestion.
"Otherwise, you should go back to Luoyang first and send this treasure to your father to impress him."
As soon as these words came out, Li Ke's eyes suddenly lit up, but he quickly reacted.
"Really?...No, no, no, forget it. My father has ordered me to enter Shu as soon as possible. If I rush back again, I might be punished."
"But my father is already preparing to take action against Xue Yantuo. Having such a good thing will be a great achievement."
Ren Yaxiang, who was standing aside, couldn't help but nodded in agreement, but still couldn't bear to let go of the telescope in his hand.
Cheng Chubi rolled his eyes. "Why go back to Chang'an? Since we are all in Chang'an, let's just ask one of the shareholders of Han and Tang Commercial Bank, His Royal Highness the Crown Prince, to present it to His Majesty."
"But having said that, this thing is very valuable. We can only give it away once at most. If the court needs it in the future, it will cost money."
Although Li Ke was incompetent in both civil and military affairs, his civil and military skills were half-measured. At least he knew the benefits of checking the enemy's opportunities first.
"This kind of sharp tool is worth spending no matter how much money you spend."
"But brother Chu Bi, how do you think of getting such a good thing?"
"Of course this is for our Han and Tang Dynasty trading houses." Cheng Chubi also picked up one and looked at it in his hand.
The magnification of these telescopes is around eight to ten times. Don't look at it, it's only a few times.
In fact, it is equivalent to asking the observer to stand at a hundred meters and look at the scenery or objects eight kilometers or ten kilometers away.
No matter how high the magnification is, it is not impossible to get it, but the lens will require more effort. More importantly, eight to ten times can be held by hand.
If it is more than ten times larger, a bracket must be used to maintain stability.
The reason why Cheng Sanlang wanted to build this telescope was that he already had ideas and thoughts when he was engaged in sea trade.
However, the quality of the Western Regions colored glaze at that time was really not that good. They were all colored glass and even variegated glass with no color classification.
After years of process improvement and countless experiments, Zhao's Western Region Liulicang has finally mastered the technology of producing colorless transparent glass.
This is true, but the yield rate of colorless transparent glass that can actually be used to make lenses is still not high.
Originally, these were planned to be completed before being sent to Jiaozhi so that the captains of the Han and Tang Dynasty trading houses could experience it first.
Later, they will be sold to colleagues. Of course, the price is very touching. Don’t buy too many of them, just sell them for a hundred guan.
Compared to encountering pirates, encountering storms, and observing abnormal conditions on the sea, it only costs a hundred coins. Don’t you think this is a price that is so conscientious that it can’t be broken anymore?
After all, research and development costs a lot of money and materials. Although people may say that stones are not valuable, fuel is valuable after all, right?
Besides, having such inspiration and inventing such a wonderful baby idea is definitely worth a lot of money.
In the end, after Cheng Sanlang thought for a long time, he only took ten telescopes with him, and he took the remaining twenty into the East Palace.
#####
"Brother Chu Bi, third brother, why are you here so fast?" Li Chengqian, the undressed and fleshy Crown Prince, came forward in person with a face full of joy.
"Brother Chu Bi, no, congratulations to my brother-in-law. I didn't expect that, brother Chu Bi, you have become my younger brother-in-law, haha..."
Seeing the smug look on his face and taking advantage of his words, Cheng Chubi could only smile bitterly and bow to the prince.
"It's thanks to Her Royal Highness Princess Jinyang's favor for me. Otherwise, I wouldn't be so lucky."
"Haha...Brother Chu Bi, it's rare for you to say such humble words."
Li Chengqian laughed proudly and turned his eyes to the box left by Cheng Sanlang at his feet.
"Brother Chu Bi came to see my younger brother. Is it possible that there is something delicious to eat?"
"Brother, this is not food. It was invented by Brother Chu Bi. It is a weapon that can be used by Wu Ben of the Tang Dynasty to conquer Xue Yantuo."
While Li Ke was speaking, he handed a small box to Li Chengqian.
"This object is called a telescope. It allows people to clearly see the movement more than ten miles away. If it is used on the battlefield, it will definitely enable us, the Tang Dynasty, to detect the enemy in advance."
Li Chengqian also picked up a telescope and made blind gestures with admiration for a long time before putting it down with a look of unfulfilled interest.
"By the way, brother, I haven't met my niece, nephew, and little brother yet. It's better to have a chance to meet the younger brother."
Cheng Sanlang, who came here to take charge of the princess's birth safety but didn't take any action at all, nodded in agreement.
"Yes, Your Highness, I have already gone to Luoyang since I delivered the baby. Now, my two little Highnesses must be seven or eight months old, right?"
For some reason, when Prince Li Chengqian heard these two people saying that they wanted to see his children, his expression suddenly seemed a little complicated.
"I just turned eight months old the day before yesterday, but last month, they were already crawling all over the ground. Alas..."
"Brother, why do you look like this?" Li Ke couldn't help but feel suspicious.
"Is it possible that something happened to my nephew or niece?"
"That's not true, it's just... Well, I won't say it anymore. Let's go there together."
Li Chengqian sighed deeply, and then led Cheng Sanlang and Li Ke to the harem, taking them to see the lively twins.
After a while, Cheng Sanlang, Li Ke and His Royal Highness the Crown Prince all stood outside the threshold.
Look at the two little babies who are full of energy, crawling all over the floor and moving things everywhere.
As for Prince Su, there were two maids in the palace, all sweating heavily at the moment, rushing here and there.
Li Chengqian looked at the children with a complicated expression, full of love and nostalgia.
Back then, Li Xiang was the naughty kid at home, and he was also so energetic and... um, lively and cute.
However, there was only one, but now, there are two more...
Li Chengqian felt like two Li Xiangs, well...I remember that both his father and mother said that he was so quiet and well-behaved when he was a child.
I have been doing this since I was a child, and I can sit there peacefully for half an hour without moving.
But the question is, why are my children so lively?
Li Ke also watched the two very agile little guys crawling around and laughing from time to time.
I couldn't help but glance at my brother and gave him a very fair evaluation. "Well, he's just like a little kid, quite energetic."
Li Chengqian looked at his children rather desolately and said helplessly.
Chapter completed!