Faced with the scholar's doubts, Zhang Yuan was calm and took out another paper below, which explained the climate environment on the back of the planet from the perspective of ocean currents.

On the blackboard, he drew a picture of the ocean currents of the planet with chalk: "If you stand in the atmosphere above the Arctic and look down at the entire planet, you can find that the ocean currents of the entire planet rotate counterclockwise. Everyone should know that the warm currents of our giant rock city flow from the west to the east, that is, from warm places to the cold places."

"Affected by this warm current, the temperature here is warmer than the rest of the area."

Due to the uneven heat of the planet, energy will spontaneously transfer from the hot area to the cold area. This is the law of thermodynamics.

This planet is tidally locked by stars, and its rotation period is equal to its rotation period, and it is not without rotation. Such a small rotation, the ground-revolution bias force generated by such a small rotation leads to the general trend of ocean currents and airflows still counterclockwise.

“What will this cause?”

Zhang Yuan drew a circle on the blackboard.

"At the other end of the planet, the ocean currents flow from the east to the west, that is, from the cold zone, to the warm zone."

"If the cold current encounters land, it will significantly reduce the temperature of this land."

"So, the climate on the back of the planet will theoretically be colder than this side. The temperature of the same longitude and latitude of the light zone is expected to be about ten degrees lower than this end, which is the original forty degrees Celsius, and becomes 30 degrees Celsius."

"What if we found the mainland in the light belt?"

"There is light, a continent, and the climate is right, and it will become a new paradise for mankind!"

“As long as it exists, and we can…discover it!”

The ambitious third exploration begins again.

This time, although it was reasonable and well-founded, it still scared many people. Some people began to mock Zhang Yuan's whimsical thoughts again. Even many sailors in the family showed hesitation and fear, and they were reluctant to participate in this kind of activity.

Explore the world!

A feat that has never been seen in the world!

The world's global exploration is far more difficult than the earth. Because the earth has a large continent, there are many points to be replenished on the ashore, but this world does not have island distribution in the entire world, which is equivalent to only one Southeast Asian archipelago, such as Eurasian continent, South America, North America, Australia, and Antarctica, and nothing!

Staying away from land for a long time, let alone the difficulty of replenishing materials. Over time, everyone will feel a serious sense of panic.

Zhang Yuan also knew that this might be the last adventure in his life. He was in his 40s and his body began to decline.

This may also be the last chance the whole world has.

He did not force the sailors who were unwilling to participate in the expedition within the family. There were young people in the entire Stone City who wanted to make a fortune and gain fame.

However, no one knows whether this expedition is to move towards the Long March of Victory or to the Road to Death.

"If this time fails, there will be no more places to explore. I will be honest at home and take care of myself, haha!" Zhang Yuan turned his head and said with a smile to his sister Anna.

Yes, if it fails, this will be the only way in this world.

People can never fight the whole world. It is also good to calm down honestly, develop some science, and develop productivity.

Of course, in the current environment, no matter how it develops, Zhang Yuan believes that it is impossible to break through the upper boundary and will only lead to chronic death... but it is still better than not developing.

"Goodbye to uncle!"

My sister Anna is already a noble lady and a mother of three children. "In the future, you will also be a great navigator."

Although she still couldn't understand her brother's choice, she could only support her in the end.

"Goodbye!" All relatives and friends were saying goodbye on the shore.

Zhang Yuan embarked on the new ship "Victory". With the innovation of technology, a faster steam-powered schooner.

In the entire fleet, there were 8 similar large ships. Zhang Yuan once again lost all the property he had earned over the years, and started the third expedition amid people's discussions, blessings, worship, mockery and expectation.

A historian wrote in his own book: "Earl Hoffman, even if he did not discover any new world, even if his third voyage failed, is enough to be remembered by history..."

"World, we need a continent, a continent full of light!"

"Let's discover it. In our world, many suffering people are still hungry, they are homeless, and have no clothes to wear, let's discover it..."

Zhang Yuan took a deep breath and issued an order, "Yang Fan, set sail!"

The entire global adventure will go around the other end of the planet through the Arctic route. Five ships loaded with 3,000 people. If it goes well, it will take 300 days. If it doesn't go well, it may take 400 or even 500 days.

It must be a difficult trip.

A young sailor pulled the rope with both hands, raised the sail, and looked at the lights of the rock city, and suddenly felt reluctant to let it go.

He asked the surrounding first mate: "Locke, what would happen if we really discovered the new continent on the back of the planet? Will we get rich?"

"Boy, I've been fantasizing here so early!" said the mate with a smile, "Even the Earl is not sure. But... do you know what a new continent means to us?"

"What?"

He opened his hands as if embracing the future: "We will be the heroes of the Stone City! We will be remembered by history! Our name can be mentioned by mankind a thousand years later."

"Whether it is wealth or honor, we can choose. If you want, you can even obtain a fiefdom in the New World and become the owner of the manor! Of course, the premise is that we can survive and see the sun in the New World... If there is a sun!"

"The sun is so beautiful. I wonder, have you ever seen the sun in the distance?"

"What if there is no New World?" asked the young sailor again.

"Is there no New World..." He frowned and sighed: "Actually nothing, it's equivalent to a very long voyage... Lord Earl will naturally give you wages, and even a single child will not be missing."

"But there is no new world..."

He turned to look at a light room on the upper floor of the deck, "The Earl may be bankrupt again. I really can't imagine if there will be anyone else in the world who is willing to explore this dark and huge world."

"How hope is there a new continent..."

When everyone thinks of the long-term sea life in the future, everyone loses interest in talking.

Everyone has a hint of confusion, a hint of yearning, and... a hint of uneasiness towards the future.

The "Victory" whimpered and left the Rock City a little heavy. Everyone did not know what their future would look like. The priest on the ship held a very traditional prayer ceremony.

"May we don't regret our choice today."
Chapter completed!