Of course Li Er knew that cats are the natural enemies of mice and are born to eat mice.
Ordinary people won't starve to death if they don't have good food and clothing, but cats don't have mice to eat, they only eat rice and noodles... No matter how good the rice and noodles are, they will really starve to death or die of illness.
In short, it is impossible not to eat, and everyone knows this.
But apart from this...what other benefits are there?
Li Er is really curious.
Li Sheng smiled and continued, "The benefits of raising cats, let's first talk about the direct impact. There are several."
"One is what you call catching mice. As you can see, the boats I build now are only wooden boats. And since they are wooden boats, rats will naturally breed on them. If there are cats on the boat, the rats will not be rampant."
"Second, ocean navigation is far more complicated than you think. On land..."
Speaking of this, Li Sheng's eyes suddenly became extremely serious.
"When a lone army fights in depth, there is often contact with the imperial court in Chang'an. Even if contact is lost, the soldiers know in their hearts that they will always have a chance to return and accept Li Er's reward. But sailing is different!"
"Once you go to sea, it is equivalent to losing contact with your hometown directly, and all the crew will understand... This loss of contact is likely to be forever. When psychological problems break out, and the mountains are high and the emperor is far away, what will happen on the ship?
It’s hard to say how tight it is.”
What Li Sheng said is by no means alarmist.
Such cases, not to mention ancient times, even in modern times, I have seen real news...
Psychological problems broke out on a ship, and after a series of murders, there were not many people left alive on the ship.
Such a situation is definitely a huge test for the captain's leadership ability, and it is not something that ordinary "leaders" can lead.
When Li Sheng said this, Li Er and others were immediately shocked.
Li Sheng's words may sound a bit sensational.
But the problem is...
Li Sheng's expression made them feel...
Why does it seem like Li Sheng has really seen some horrific scenes...
The words really sound like words of experience...
But in short, Li Sheng valued it so much, and Li Er and others naturally recognized it happily, so it must be true.
Then, Li Sheng took a breath and said,
"And raising a cat can improve your mental health a lot. Of course, it can't be said to confuse people's minds, but it can actually calm psychological abnormalities."
Li Sheng is not bragging about this conclusion, because...
Petting cats is good for mental health. This is indeed the conclusion drawn by WHO statistics.
"In addition to these superficial, invisible and derived benefits, there are also many."
"First of all, for example, if a cat is on a boat and the boat is on the sea, it is extremely easy to raise it. This is one of them."
"Secondly, if rats can't run rampant, the life of the ship will be greatly improved. Ships on the vast sea may be damaged at any time, and the life of the ship is often the life of the crew."
"Other than that, the ship is a relatively closed space and can be regarded as a kind of blizzard villa..."
Li Sheng used a somewhat funny metaphor, but the conclusion is still very serious, "In this kind of environment, if a plague occurs, the situation will inevitably be very dangerous, and rats are good at spreading the plague... You always know this
You know, but with cats to control the rat population, the situation is much safer."
What Li Sheng talked about was actually the navigation practices of his previous life.
This is almost common sense among the group of Europeans who rely on ships to make money and conquer the world.
"In addition, although cats are small, they are majestic beasts and have the ability to ward off evil spirits. This is mentioned in the folklore of many places..."
Li Sheng said this, Li Er, Wei Zheng and others...
They looked at each other in surprise.
Good guy, raising a cat has taught you so many things...
It means that this thing can directly support a squad of 100 people at sea.
But Li Er, Wei Zheng...
There is no time to digest this information.
Immediately afterwards, Li Sheng said another shocking statement.
"It's just that these things are just side doors in the final analysis."
"Now we can only build wooden boats, so we can only think more about these little tricks to improve the success rate of navigation."
As he said this, he shook his head regretfully. Li Sheng didn't hesitate to sit down, picked up someone's cup, and took a sip of tea.
Li Er didn't react to this sentence at first.
But then, Fang Xuanling on the side suddenly frowned and realized that these words were not simple...
wait.
What is...a wooden boat...
"Sir, wait a minute, you said just now, 'We can only build wooden boats now'... What does that mean?"
It was this sentence that made Fang Xuanling feel something was wrong.
"Now"?
What does this mean?
Although something felt wrong, Fang Xuanling did not think about it carefully, and Li Er and others on the side did not react for a while.
But then, Li Sheng shrugged.
"Building wooden boats, we don't have the conditions now, so we can only build wooden boats. Just like you...well, you have all seen that steam engine, right?"
Li Sheng suddenly mentioned this, which made Li Er and others startled.
Steam engine?
Wooden boat?...Is there any connection between this...
But then, Li Sheng said.
"We can only build wooden boats. This is limited by conditions. There is no other way. Installing a steam engine in a wooden boat is also very restrictive. To be honest..."
"Well, this steam engine is an auxiliary power, used to save lives when the wind is completely leeward, or when the wind and waves are severe. If you want to sail stably over long distances, the ship cannot be a wooden ship, but an iron ship.
"
When Li Sheng said that the steam engine was just an auxiliary, Li Er was really disappointed for a moment.
But when Li Sheng talked about it later, Li Er, Wei Zheng, Du Ruhui, Fang Xuanling... were immediately dumbfounded.
Damn it, iron ship???
No, ship...
Can this thing be made of iron????
this……
Isn't this a joke?
At this moment, Li Er and the others really felt like they had seen a ghost.
Iron ship...how is this possible?!
…
As soon as these two words appeared, Li Er and Wei Zheng looked like they were facing a formidable enemy.
Not only did I see a ghost, I saw a monster.
Can that iron thing build a ship???
"No……"
Li Er couldn't help it anymore and looked at Li Sheng with disbelief, "How can there be such a thing as an iron ship in the world?"
"Ships can float on the water, isn't it because wood can float on the water? Iron sinks when it touches water, how can we build a ship????"
It can be said that everyone in the world does not understand this truth.
Not only Li Er, but also Wei Zheng and others on the side, and even the children in Hangzhou City and all the states and counties in the world, how could they not know this truth.
