Chapter 175: Zhongwan Island
In fact, these days.
The nautical charts in Europe are not very good either.
He was captained by Claya.
I had a nautical chart in my hand.
Except the markings above are a little clearer.
There is no other difference.
New captain, pass the nautical chart.
It is difficult to judge the route of navigation.
This is why.
An experienced captain is a treasure.
The best sailing knowledge these days.
Not on the drawings.
But it's in the captain's mind.
After a black cloud blocked the sky.
Zhang Luo put away the telescope and said:
"Baihu, remember what I told you before."
"Is this world actually the Earth?"
Zhang Liansheng nodded.
She had been yearning for it all afternoon.
What will it be like to walk across the other side of the sea?
One time directly outside the school.
I heard Zhang Luo's story.
We live in a ball.
Although it sounds strange.
But she has rich experience at sea.
I still believe what Zhang Luo said is right.
Zhang Luo and Captain Klea a few days ago.
A navigation school is being prepared.
Cleia showed it to Zhang Liansheng.
A world map of Europe.
When she looked beyond the Ming Dynasty.
When there is so much land.
She realized it for the first time.
this world.
It’s not just the Ming Dynasty.
Zhang Luo continued:
"The world is big."
"The ocean is infinitely vast."
"If it's just speed and marking."
"It's hard to pinpoint a location in the open ocean."
"For a long voyage."
"More accurate nautical charts are needed."
"Only in order to make an accurate decision."
"The location of your own ship."
Zhang Liansheng nodded in agreement.
She has extensive maritime experience.
very clear.
A very good nautical chart.
Importance for maritime navigation.
Some big businessmen in Fujian.
I will give you a thousand taels of gold.
Offering a reward for an exquisite nautical map.
Zhenhai also has a history passed down from generation to generation.
Maritime map.
But compared to Captain Cleia's map.
Still a lot rougher.
Zhang Liansheng said worriedly:
"I heard Cleia talk about it."
"His native Netherlands."
"It's not even one-tenth the size of the Ming Dynasty."
"But you can travel thousands of miles to Daming."
"Isn't that an explanation?"
"Those Westerners have already mastered the sailing skills?"
Zhang Luo smiled and said:
"Don't worry so much."
"When Zheng He went to the West during the Yongle period."
"The method is the same as these Westerners."
"It's all sailing along the coast."
"Not really sailing."
Zhang Liansheng heard it.
Westerners have not yet mastered the art of navigation.
It's a bit easier.
She and Cleia talked a lot these days.
The more she talked, the more worried she became.
Now Western countries are beginning to explore the sea one after another.
The King of the Netherlands.
There is a fleet of hundreds of ships.
Zhang Liansheng was shocked inside.
Thousands of Japanese pirates.
This made it difficult for the Ming Dynasty to resist.
If it were a Western warship.
What should I do if I drive to Daming?
Zhang Liansheng said:
"About the nautical chart thing."
"Is there any good way Mr. Zhang can use it?"
At this moment, the dark clouds in the sky gradually dispersed.
Zhang Luo looked up at the sky and said:
"Actually, the method is very simple."
"Based on the rotation of the entire Earth Autumn."
"Split out the latitude and longitude."
"Just determine where the ship is on Earth."
"Just wait until these two things are enough."
"To produce accurate navigational charts of the sea."
"Just mark the longitude and latitude of the port."
"The problem is easily solved."
Zhang Liansheng was confused after hearing this.
But these are the longitude and dimensions.
Not difficult to understand.
She still understood a little bit.
After the dark clouds completely dissipated.
Zhang Luo pointed to the stars in the sky.
“It’s not difficult to implement in detail.”
"Just use the Earth as your base."
"Just look at the angle of the stars."
Zhang Liansheng followed Zhang Luo's fingers.
Look at the Big Dipper in the sky.
The positioning method of the Ming Dynasty.
The Big Dipper is also used.
to determine the location.
Although I don't know what an angle is.
But the method of determining the position is based on the stars.
Zhang Liansheng still knows it very well.
"Dimension knows."
"What about longitude?"
Zhang Luo said:
"There are several ways."
Zhang Liansheng was stunned when he heard this.
Zhang Luo said:
"You can get it in two minutes."
"To put it bluntly, we need to determine the location."
"Start by figuring out the time."
"A hundred households know the time difference."
"Or is it the jet lag?"
Zhang Liansheng shook his head regretfully.
She had never heard of jet lag.
Zhang Luo said:
"The sun is black and the moon is black, and the sun is daytime."
"It's the moon at night."
"Actually, it has something to do with the rotation of autumn."
Zhang Luo thought of giving lectures to Zhang Liansheng.
First let’s talk about the time difference.
Then he said:
"The so-called longitude is actually time."
"For example, Zhenhaiwei's time is the basic time."
"I went from Zhenhaiwei to the capital."
"How long was the voyage and how much time difference was there?"
"You can get the longitude."
Zhang Liansheng's mind was completely confused.
Zhang Luo will talk again.
She couldn't understand the meaning either.
Zhang Luo had no intention of going further.
He has already seen it.
The confusion on Zhang Liansheng's face.
Just explained:
"The Two Bells Method is actually two methods."
"One based on the direction of the stars in the sky."
"To determine the time difference."
"A time that begins with a voyage."
"After arriving at the destination."
"Then correspond to the sun to determine the time difference."
So after everything is said.
Zhang Liansheng was already touching his forehead.
I feel like I don't have enough brain power.
Zhang Luo smiled and shook his head.
He couldn't simplify it anymore.
Zhang Liansheng couldn't understand.
There was nothing he could do.
The two chatted for a while.
Zhang Liansheng really couldn't stand the sleepiness anymore.
He waved his hand and returned to the cabin to rest.
Zhang Luo also calmed down.
Something called mathematical science.
It’s better to think about it better later.
Let’s deal with the immediate dilemma first.
Three days later.
Zhang Luo took out his telescope.
I saw a small island not far away.
Although this island is in the telescope.
Very small.
The century is indeed long.
The island is shaped like a ladder.
After Zhang Luo took a few glances.
Give the telescope to Zhang Liansheng.
She recognized it quickly.
This is Zhongwan Island.
"That's right, this is Zhongwan Island."
"I came here when I was little."
"That's what my dad told me."
"As long as it's on Zhongwan Island."
"Garrisoned a thousand men."
"Plow the fields and build defense towers."
"Japanese pirates can't even set foot in Fuzhou."
"What a pity it was my father's suggestion back then."
"I didn't get any response from Dusi Yamen."
Zhang Luo looked carefully in the telescope again.
Observed the largest outer island in Fujian.
I found this island to be a natural supply station.
The back of Zhongwan Island is covered with mountains.
The mountains are very high and extremely steep.
This shows that you can only go in one direction to get to the island.
Just keep one side safe.
This will ensure the safety of the island.
If you look carefully, you can see there is a small lake on the mountain.
Dense mountain forest.
It shows that the soil on this island is very nutritious.
You can farm to support a certain number of soldiers.
Zhang Luo felt itchy in his heart.
This is a big island.
It is simply a natural military base!
This chapter has been completed!