Since Feng Daiwen said that he wanted to make a magnifying glass, he rushed to Zhujiazhuang the next day, so that the craftsman could do what he asked.

Zhujiazhuang is the same as in the past, but it is more prosperous, many carriages come to camel to transport goods, and many houses in the village have also expanded a lot, and the villagers who know Feng Daiwen have come to salute and sincerely express their gratitude.

The fish pond that was built in the summer is also built around the foot of the mountain, and the whole stone mountain seems to be an isolated island, located in the middle of the fish pond, and it is estimated that the next year will definitely be a good harvest.

Feng Daiwen walked all the way, watched all the way, Zhujiazhuang has completely become a breeding base, thousands of geese and ducks in the river are not afraid of the cold in the winter water, and there are countless chickens in the farmland after the harvest are leisurely looking for food.

There is a pen next to every house of the villagers, in which pigs and sheep are raised, and the cries of cattle and horses echo in the village from time to time.

Although Zhujiazhuang has become very noisy, and there are animal sounds everywhere, these are natural sounds in the ears of the villagers.

Feng Daiwen came to the glaze workshop, found Qingyun Lao Dao, and told him his requirements, but when Lao Dao heard that he wanted to be a clairvoyant to see the moon, he was inexplicably excited, and went into battle in person, striving to make Feng Daiwen satisfied with the glaze as soon as possible.

Originally, the main thing in Liuli was transparency, which was more difficult to do, but only from a group of crazy Taoist priests, there was nothing they couldn't do.

In the past, they didn't find that this world is more and more interesting than alchemy, and then followed Feng Daiwen to see that saltpeter can be made of ice, stone can be turned into all kinds of glass, and then can be made into a mirror where the figure can be clearly seen, charcoal can be turned into coal, tree bark can also be made into snow-white paper, and after limestone is burned, it can be made into cement, which can make the wall hard and smooth.

Since then, this group of Taoist priests has gone completely crazy, any ore, burn it first, burn one ore, and then burn another together, just hoping to find something more magical.

And now the ore is provided by the government, all kinds, everything, naturally makes them even more crazy, and the furnace used in the experiment has hardly stopped, but fortunately, Feng Daiwen strongly demanded that every experiment be recorded in detail.

Until one time, lead ore was added in the process of burning glass, and it was found that the burned glass not only had few bubbles, but also was more transparent, so this problem was also solved.

Magnifying glasses and telescopes are concave and convex mirrors, this is just a mold problem, it is easy to solve, they were not made before because the quality is not up to the requirements, but also for confidentiality, now that it is controlled, of course it can be made.

Large and small, different thicknesses made more than 20 molds, the largest one made one foot three, the thickest one is as thick as an adult's fist, open the furnace, introduce the ore fired into the water, solidify, and naturally cool for an hour.

Feng Daiwen held the largest and thickest piece, but unfortunately Feng Daiwen didn't know the degree or the multiple, so he let people use it as a copper tube with a large front and a small back, which was composed of more than ten sections and could be combined with different convex mirrors.

The copper is very soft and has a low melting point, and several skilled craftsmen quickly made it, and the copper pipe composed of it is not only tightly fastened, but also polished very smooth, without a single burr, which makes Feng Daiwen, a self-proclaimed ancestral blacksmith, ashamed, such a skill has disappeared in later generations.

Throwing away the entanglement in their hearts, the two of them began to hold large and small magnifying glasses to observe various things.

"Wow! I'm scared to death. Feng Daiwen hadn't thought about what to look at, and Qingyun Lao Dao screamed in fright.

"What's wrong?" Feng Daiwen didn't know what he saw, he actually jumped up in fright, and patted his chest in shock.

Qingyun Lao Dao smiled awkwardly, and said embarrassedly: "Just now, Lao Dao saw a spider here, and I wanted to see what it looked like." ”

Feng Daiwen made up for it, shook his head with a smile, went to find the target to observe, and reminded Qingyun at the same time: "Remember not to look at the sun, otherwise you will be blind, don't blame me for being unpredictable." ”

"Why?" Qingyun pulled Feng Daiwen and asked with a puzzled wink, probably planning to find a time to observe the sun.

Feng Daiwen had to find a dead leaf and do a small experiment on him in front of the sun.

"This, this can actually start a fire out of thin air?" Qingyun Lao Dao was stunned once.

Feng Daiwen shook his head speechlessly, and explained carefully: "How is this a fire out of thin air, you didn't see the magnifying glass in my hand, this is the principle of concentrating light, the sun's rays have temperature, and gathering the rays together can produce a very high temperature." ”

"So that's the case, the Tao Te Ching says that the way of nature, and sure enough, the way of nature is the most powerful." Qingyun Lao Dao muttered.

"Yes, the power of nature is the greatest, if we learn to borrow, we can also become very powerful, just like this sunlight, as long as you go to study, you can find many huge wonderful uses, just like flowing water, now Chang'an has made a huge mill that uses the flow of water, day and night, grinding out thousands of catties of fine grain, day and night only need a few people to operate." Feng Daiwen said approvingly.

"How else can this sunshine be used, Master Hou, tell me about it." Qingyun was like a child begging for candy at this time, staring at Feng Daiwen with a smile and longingly.

"How do I know, if I know everything, I will become an immortal, what else do I want you to do!" Feng Daiwen glared at Qingyun angrily and said.

"Hehe, in the heart of the old Tao, Master Hou, you are a land immortal, who knows astronomy and geography." Qingyun Lao Dao smiled and patted his ass.

"Okay! Old man, you actually learned to pat on the back, find something to observe yourself, and talk about the rest later. Feng Daiwen also teased.

"Wow! Master Hou, you see that this ant leg can be put so huge, haha, look, look at it and look at me with its eyes. Qingyun Lao Dao took a magnifying glass, squatted down to find an ant and looked at it, and said excitedly and loudly while looking at it.

Feng Daiwen ignored the startled Qingyun, filled the bowl with clear river water, and observed it with a magnifying glass.

Gently stir the water in the bowl, only to see that the originally clear river water, there are many small things under the magnifying glass, it seems to be a lot turbid, the magnifying glass is removed, or the bowl of clear water is rotating in the bowl.

Feng Daiwen nodded with satisfaction, put away the magnifying glass, although he didn't see the microorganisms in the water, but he could see so many things that couldn't be seen with the naked eye, he was already able to satisfy Sun Simiao, as for wanting better, they had to let them continue to study by themselves.

As for the huge telescopes, only leave it to the evening to see the effect.

Thank you for the reward of the big brother you love in your life, thank you for the monthly pass of my love you baby big brother, I love you too!! Thank you all for your support.

(End of this chapter) the whole book - free full book reading network