Lin Feng raised his head and looked at the sky for a long time, and the group of people in front of him also looked up stupidly for some reason.

"yes, you see the gliding bird, right? This is the eighth one I want to say, why can any bird fly in the sky, but we, the human beings, the spirits of all things, cannot fly in the sky? ”

Everyone put down their upturned faces and looked at Lin Feng with blank expressions. After the continuous destruction of Lin Feng's previous language rhapsodies, no matter how exaggerated Lin Feng was, they didn't have much reaction.

Lin Feng smiled, and then said, "Do you think this is nonsense? Then let's imagine boldly and verify carefully!

Birds can fly in the sky, mainly by constantly flapping their wings up and down, so that the air generates buoyancy towards the air; It can glide in the sky without flapping its wings because it spreads its wings and flies with the air currents. If we can design a frame that resembles a bird's wing, large enough to support a person's weight, can't we use the air currents in the sky to glide in the sky?

Also, have you ever seen the Kong Ming lantern of Shu? If we make a big enough balloon according to this principle, won't we be able to go to the sky? ”

Here, Lin Feng directly told the invention of paragliding and hydrogen balloons in later generations.

In the crowd, Deng Jiayu's eyes became brighter and brighter, and he also had crazy thoughts of going to heaven and earth, but there was no way to practice it. Perhaps, this Lord Lin, who is even crazier than himself, will lead everyone to invent it?

Lin Feng didn't shake off everyone's surprised expressions at all, pointed to Fang Tai in the crowd, and asked, "Fang Tai, have you been to Southern Overseas and have you ever found that the climate there is different from ours?" ”

Fang Tai bowed, and then said loudly: "Go back to your lordship, the further south you go, the hotter the climate will be!" In some places, even in winter, it's so hot that you can only wear undershirts! ”

This short Q&A basically brought everyone back to their souls, which is a rare thing that most people have never experienced. The world is so big, it's really amazing!

Lin Feng nodded lightly, and directly expressed his two imaginations of the "nuclear bomb level":

"The four seasons of the year alternate and remain the same; Day and night, for ten thousand years; In spring, southwest winds blow, thunder and rain; Summers are hot and sweaty; Harvest in autumn and turn cold; In winter, the northwest wind blows, and it snows coldly; There is no new sun and moon, looking at the sun and the moon, and the beginning of the week goes back and forth...... These are all things that we are used to, have you ever wondered why this is the case? ”

yes, why would this be the case?

As if watching an invisible layer of vertical ice slowly melt, Lin Feng clearly saw the expressions of serious thinking and exploration on the faces of all the people in front of him.

Lin Feng raised his hand and pointed at Li Yu, who also had a thoughtful expression, and said loudly: "When I first met His Royal Highness King Zheng, I personally verified one thing with His Royal Highness, the first thing we saw when the ship coming from a distance was the mast high above, why would this happen?" Is there such a possibility? ”

Lin Feng found a thin twig-like log, drew a big arc on the ground, and then used his clumsy painting skills to draw a boat, reproducing the scene when he fooled Li Yu at the beginning, but there were more spectators.

After Lin Feng finished painting, he looked at the people who took the initiative to come up and form a large circle, and said loudly: "Let's push back, if we can only see the mast emerging in the distance with our level of sight, can we only push the ship back and not sail on a plane, but just an arc?" And so on, and the ground beneath our feet should be—"

When Lin Feng said this, he drew the wooden stick along the edge of the arc until it became a big circle.

"It's a ball!" Qiu Xu was not very old after all, and immediately exclaimed.

This is the ninth imagination I boldly envisioned. At our feet is an immensely large sphere. Lin Feng stomped the ground hard with his foot.

"Lord Lin, if there is a ball under our feet, won't the people who live opposite the ball at our feet be headed down every day?" Qiu Xu then asked.

As soon as he said this, many people couldn't help laughing. yes, that's ridiculous.

"No!" Lin Feng shook his head lightly, and then said, "Without him, just like we can only see the mast appear first when we are very far away on the sea and the Yangtze River, this ball is too big, and there may be a significant drop after a few hundred miles." Relative to the huge Earth, each of us is too small to feel the difference! ”

Lin Feng looked at everyone with a ghostly expression, and knew that Lu Dao, the ideological enlightenment teacher, was really not good. If it weren't for some successful things such as supermarkets and talent picking ceremonies that I had done before, I am afraid that some people would treat themselves as crazy people now and directly sue the government to arrest people, or sue the emperor and say that they have bewitched the public!

Lin Feng laughed loudly a few times, clapped his hands a few times, summoned everyone's souls back, and said loudly: "It is precisely because of the ninth imagination that my tenth imagination was triggered, that is, the position of the earth in the entire sky, that is, its relationship with the sun, moon, and stars in the sky. ”

Lin Feng grabbed the wooden stick and drew three balls of different sizes on the ground to symbolize the sun, the earth, and the moon.

"Here I propose a very bold imagination." Lin Feng clenched his hand into a fist, turned it lightly a few times, and then said, "Let's talk about the earth first, if the earth keeps rotating from west to east, and it is exactly one day to rotate in one circle, then when facing the sun, it is day, and where the back is to the sun, it is night, is this a reasonable explanation for the repeated alternation of day and night?" ”

This time, including Li Yu, several people couldn't help but raise their hands and pointed directly at Lin Feng, their lips trembling, unable to say a word.

No way, for the people of the Five Dynasties and Ten Kingdoms who are still arguing about whether the earth is round or square, Lin Feng's crazy imagination is indeed "ruining the three views".

Lin Feng ignored it, then pointed to the smallest ball on the ground, and said loudly: "Let's talk about the moon again, the moon has never left the earth for hundreds of millions of years, if we imagine that the moon is also constantly revolving around the earth from west to east, this cycle is exactly one month, can it explain that the moon is full moon month after month?" ”

"Lord Lin, that's not right! Assuming your imagination is correct, then what is the moon and the full moon? Shouldn't it always be a circle? "This time it was Qin Yue, a young official who was transferred from Si Tiantai.

Lin Feng arched his hand at him, nodded and said, "Good question!" I have also thought about this issue many times, and I feel that I have to start with the relationship between the sun, the moon, and the earth.

Let's assume that the earth is rotating and revolving around the sun at the same time, and you should be able to think of this cycle, which is exactly one year.

At this point, if we think of the moon as a mirror, it doesn't emit light on its own, but only reflects the sun's light, so it makes sense. The moon waxes because the earth is too large and more or less blocks the light from the sun, so the moon will wax and wan. ”

Lin Feng said as he drew the rotation relationship of the three spheres on the ground. Of course, the "love triangle" relationship between the three spheres is very complicated, and Lin Feng can only pick and talk about it simply.

Qin Yue rushed over, knelt on the ground all of a sudden, staring straight at the three small balls, and after a while, he raised his head and muttered, "Lord Lin, did that lunar eclipse happen because the three balls were in a straight line!" ”

"That's right! Just as we face the sun and have a shadow behind us, the side of the earth facing away from the sun is also a shadow, and if the moon happens to enter this shadow zone, there will be a lunar eclipse! Lin Feng patted Qin Yue's shoulder and replied happily.

"Lord Lin, but these can't explain the change of the four seasons!" Qiu Xu, who had been frowning and staring at the pictures on the ground, asked loudly.