Chapter 457

Faced with the scholar's query, Zhang Yuan took his time and turned to another paper below to explain 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 current of the planet with chalk: "if you stand in the atmosphere above the north pole and look down on the whole planet, you can find that the ocean current of the whole planet rotates counterclockwise. You should know that our boulder warm current flows from the west to the East. That is, from a warm place to a cold place. "

"Affected by this warm current, the temperature here is warmer than that in other areas."

Due to the uneven heating of the planet, energy will spontaneously transfer from the hot region to the cold region, which is the law of thermodynamics.

The planet is tidal locked by the star. The rotation period is equal to the revolution period, not without rotation. The geostrophic bias force generated by such a weak rotation leads to the general trend of ocean current and air flow counterclockwise.

"What will this lead to?"

Zhang Yuan drew a circle on the blackboard.

"At the other end of the planet, the ocean current flows from the east to the West. That is, from the cold zone to the warm zone. "

"If the cold current meets the land, it will greatly reduce the temperature of this land."

"Therefore, in theory, the climate on the back of the planet will be colder than this side. The temperature in the same longitude, latitude and light belt is expected to be about 10 degrees lower than this end, that is, the original 40 degrees Celsius will become 30 degrees Celsius."

"If we find a continent in the light belt?"

"There is light, there is a continent, and the climate is suitable. It will become a new paradise for mankind!"

"As long as it exists and we can... Find it!"

The ambitious third exploration began again.

This time, although justified, it frightened many people. Some people began to ridicule Zhang Yuan's wishful thinking again. Even many sailors in the family showed hesitation and fear. They were reluctant to participate in such activities.

Global exploration!

A feat never seen in the world!

The global exploration of this world is far more difficult than the earth. Because the earth has a large continent, there are many supply points that can go ashore, but there are no in the world. The distribution of islands in the whole world is equivalent to only one Southeast Asian archipelago. There is no Eurasian continent, South America, North America, Australia and Antarctica!

Long time away from land, not to mention the difficulty of material supply, everyone will have a serious sense of panic over time.

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

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

He did not force the sailors who were unwilling to join the expedition within the family. The whole Stonehenge is full of young people who want to get rich and fame.

However, no one knows whether this expedition is a long march to victory or a road to death.

"If you fail this time, there will be no place to explore. Be honest and provide for the elderly at home, ha ha!" Zhang Yuan turned his head and smiled at his sister Anna.

Yes, if it fails, the world can only do so.

People can't fight the whole world. It is also good to calm down and develop some science and productivity.

Of course, in the current environment, no matter how it develops, Zhang Yuan believes that it is impossible to break through the upper limit and will only die chronically... But it is better than no development.

"Goodbye to my uncle!"

Sister Anna is already a lady and a mother of three children“ You will also be a great navigator in the future. "

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

"Goodbye!" All the relatives and friends saw off on shore.

Zhang Yuan embarked on the new ship "victory" -- with technological innovation, a faster steam powered schooner.

There are eight similar large ships in the whole fleet. Zhang Yuan once again lost all the family property he had earned over the years, and opened the Third Expedition in people's discussion, blessing, worship, ridicule and expectation.

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

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

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

Zhang Yuan took a deep breath, gave orders and said, "Yang Fan, set sail!"

The whole global exploration will go around the other end of the planet through the Arctic route. Five ships carry 3000 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 scattered lights of Boulder City. He suddenly felt reluctant.

He asked the chief mate around him, "Locke, what will happen if we really find a new continent on the back of the planet? Will we be rich? "

"Smelly boy, I'm whimsical here so early!" The chief mate grinned and said, "even the count is not so sure. But... Do you know what a new continent means to us? "

"What?"

He opened his hands as if embracing the future: "we will become heroes of Stonehenge! We will be remembered by history! Our names can still be mentioned by mankind after a thousand years. "

"Whether it is wealth or honor, we can choose. If you like, you can even get a fief in the new world to be the master 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! "

"How beautiful the sun is. I don't know. Have you ever seen the sun in the distance? "

"What if there is no new world?" Asked the young sailor.

"There is no new world..." he frowned sharply and sighed: "in fact, it's nothing. It's equivalent to a long-distance voyage... The count will naturally give you wages, not a penny less."

"However, there is no new world..."

He turned and looked at a lighted room on the upper deck. "The count may be bankrupt again. I really can't imagine whether there will be others in the world who are willing to explore this dark and huge world. "

"How I wish there was a new world..."

At the thought of the long sea life in the future, everyone lost interest in talking.

Everyone has a trace of confusion, a trace of longing, and... A trace of anxiety about the future.

The "victory" gave a whine and left boulder with a little weight. Everyone doesn't know what their future is like. The priest on the ship began a very traditional prayer ceremony.

"May we not regret today's choice."

……