"It's a running fire." Old Man Xing took a lighter, swiped his fingers lightly, and then immediately burst out of a firehead.

Many people may not imagine that making fire was still difficult in ancient times. If you can't see the sparks in the stove, it will take a lot of effort to get rid of the fire. Finally, the well-known drill wood for fire, if anyone has tried it, you know how low the success rate of this thing is.

So this stuff was quite marketable in ancient times.

But what surprised Corning wasn't the lighter itself. Although it was difficult to mass-produce in a short period of time with the technology of the 17th century, flint and fuel were not difficult to produce in a short period of time.

The point is that the shell of the lighter turned out to be a plastic product.

If it's steel, even if it's aluminum, Corning can accept it, but plastic products, I really haven't seen a few traversers make them.

The earlier batch of plastics, such as phenolic plastics, were the fruits of the development of chemistry to a considerable extent. The Belgian genius who created it, Beckland, was born two hundred and forty-eight years later, and his work, like the other scientific achievements of that era, stood on the shoulders of countless giants.

Corning didn't think it would be easy to raise the level of chemistry in the early seventeenth century to what it would be three hundred years later.

What's more, the shell of this lighter is definitely not the original phenolic plastic, but a higher-end product. Even though its industrial cost in later generations may be extremely low, it is not something that any traveler can make use of the productive forces of the late Ming Dynasty.

It doesn't matter if it's a science student or an engineering student. Without a certain industrial scale and the number of experiments, I don't want to make this thing.

So, where did this thing come from?

Suddenly, a creepy conjecture arose in his mind.

In fact, he should have realized this conjecture a long time ago, since Sun Dacang was proven to be a traverser, he should have thought that not every traverser is only mixed in this world with the knowledge of his previous life.

"Corning." Wang Sen's voice suddenly disrupted his thoughts, "What do you think of this thing?" ”

Corning raised his head, and his face pretended to be calm and waveless, perhaps because the pressure on his ex's life was too great, making his face, which was only fifteen years old, look extraordinarily old.

"That's good stuff." He took a sample and analyzed it for Wang Sen, "Although I don't understand how to use this thing, it's obviously much more convenient." Rich people must be willing to try it, or at least use it to fill the façade. ”

In the last years of the Ming Dynasty, the wind of extravagance gradually blew away the simple atmosphere in the north and south of the river. Western goods also gradually began to enter the homes of some enlightened scholars and merchants.

"I think this thing might as well go into the big family's house first in the name of foreign goods. Wait until there are more people who envy it, and then slowly spread it to small and medium-sized households, and then it will be farmers. Corning touched his head, as if thinking, "In this way, first of all, we can use a relatively high price to return enough gold and silver, and then we can open more stores." The second is to guide the formation of an atmosphere, so that more goods can attract attention faster. ”

In the end, he added: "Anyway, when Longqing opened the sea, this is how we Hui merchants sold foreign goods." ”

Wang Sen listened and nodded secretly. Even the old man star showed a look of admiration.

The proprietor once told him about a phenomenon called the marginal effect, and he pondered for a long time before he basically understood what it meant.

To put it simply, it is rare and expensive, and no one wants it if there are more.

The so-called continuous increase in a certain input, the new output or income will gradually decrease, in the view of this simple old man, naturally this is the meaning.

When he came, the proprietor was also worried that the people of the Central Plains did not know the marginal effect, and they would distribute a large number of goods at one time, resulting in a decline in capital returns, and they could no longer afford to buy what they would launch in the future. I can't think of this Corning, but he knows the doorway. At the beginning, he aimed at the money bags of large households, and also named to raise the price higher to facilitate the return of funds.

Good boy, it's not simple, no wonder Wang Sen will take a fancy to him.

Although Kangning wanted to join the Black Coat Society in Li Duo's plan, he was still a secret existence. Yes, and the old man star didn't know that the young man in front of him who was secretly praised by himself would also become an important help for the proprietor in the future.

"Then it's decided." Wang Sen clapped his hands and said.

Later, they looked at a lot of gadgets. The cosmetics that the ladies liked, the exquisite prints, and even Wang Haoxian was fascinated by a thing called a bicycle.

Corning followed behind, expressionless and silent. Wang Sen then selected a large number of goods, but Corning was not satisfied.

Old Man Xing was very satisfied with Wang Sen's intention to cooperate, so he took them to the canteen of this underground Grand View Garden.

"Brother who stayed outside, we've already brought us food." Old Man Xing said with a smile, "Sect Leader Wang, please dine here." ”

"Okay."

Soon, the newly served dishes immediately attracted the attention of Wang Sen and others.

"It's called a sweet potato, and that's a green pepper potato. My proprietor is a favorite eater. That one is boiled corn, and the leaves have to be peeled off......"

The old man was introduced the same. He didn't notice that Corning's expression continued to change subtly.

I really didn't expect him to come to the Grand View Garden of the Traveler for a day as an indigenous.

But he became more and more convinced of his new judgment. Even if the proprietor of the Black Clothes Society is a science student and understands corn planting, it just so happens that someone brought corn from South America, but the variety of this thing is so degraded that it can't be kept. If the first corn is sprinkled in the ground, it is likely that a lot of "male" corn will grow without cobs.

However, the current situation is basically that corn is in open supply, and even outsiders like them can eat it, which means that such a problem has been solved.

Unless he is an expert breeder, this is not a good problem. Unfortunately, the gap between industrial maniacs and breeders is a bit wide, so Corning's new conjecture is infinitely close to being confirmed.

Speaking of breeding experts, Steward Kangsen once went to Yanzhou Mansion to visit a master of agriculture and mulberry, I don't know if that person is related to these things.

However, an unprecedented drought is coming, and these high-yielding crops actually have a better use.

"That's right." Kang Ning suddenly raised his head and asked the old man Xingdao, "The seeds of these rare crops can give us some." ”

Old Man Xing smiled: "It's not okay to give, but it's okay to sell it." ”