Yang Shaofeng still didn't answer Zhu Zhanji's question, but said with a profound face: "Suppose I am standing on the second floor of the Drunken Immortal Building, holding a ten-pound iron ball in my left hand and a one-pound iron ball in my right hand, when I let go of my hand at the same time, guess which one will land first?"

has been pitted by Yang Shaofeng many times, and Zhu Zhanji has long learned to think twice before answering - questions like this are obviously pits!

After comparing the two hands back and forth for a long time, and after repeating the experiment in his mind several times, Zhu Zhanji asked tentatively: "How can you ensure that your hands can be released at the same time?"

"You're a good man"

Yang Shaofeng asked rhetorically: "I can't hold two balls with a wooden plank, and when the time comes, as long as I cut the rope, will the iron balls fall together, as long as I think about it seriously, there are not many ways."

Zhu Zhanji is still a little uncertain: "Then, it should be a ten-pound iron ball that lands first"

Yang Shaofeng still didn't answer, but continued to ask: "Then change the conditions, if I hold a pound of iron ball in my left hand and a pound of cotton in my right hand, and let go at the same time, guess which one will land first?"

"Landing at the same time!" Zhu Zhanji suddenly replied with a confident face: "You think it's a pity that I will guess that the iron ball will land first because the cotton is relatively light, you said it yourself just now, since the two weigh the same, they should naturally land at the same time." ”

Yang Shaofeng nodded with a smile and said: "So, I'll ask people to prepare a high platform for a while, and prepare a high platform of three zhang high, ten zhang and thirty zhang respectively, and when it is built, we will experiment directly, how"

Zhu Zhanji suddenly fell into deep doubts, looked at Yang Shaofeng and said: "Could it be that the iron ball and cotton will not fall to the ground at the same time, could it be that the ten-pound iron ball and the one-pound iron ball will fall at the same time?"

Yang Shaofeng said with a smile: "After all, hearing is false and seeing is believing, now that I told you, even if you believe it, there will always be some doubts in your heart, it is better for you to witness the results of the experiment yourself." ”

……

It is not common sense that a ten-pound iron ball is heavier than a one-pound iron ball, and the landing speed should be faster, while a pound of cotton and a pound of iron should land at the same time, which is not common sense

The salted egg master ate too many salted duck eggs and locusts, and as a result, his brain was gnawed by locusts

Since the construction of the high platform required by Yang Shaofeng began, the people of Jimo have fallen into a carnival of eating melons.

After all, the salted egg master is a Wenqu star, and he has great ability, so he can see the opportunity for his old man to be slapped in the face, and it is estimated that this is the only time in this life.

Yang Shaofeng stood not far from the bottom of the three-zhang high platform, turned his head and said to Zhu Zhanji: "It's too late to regret it now, after all, a hundred times is not too much, and less is not too much." ”

"I don't regret it," Zhu Zhanji said: "It's ridiculous that things that are well known will change because of one of your experiments!" ”

"Hey," Yang Shaofeng sighed and said, "Since someone is in a hurry to deliver the money, I have to reluctantly accept it." ”

Hu Shanxiang glanced at Yang Shaofeng suspiciously, then looked at Zhu Zhanji, who was full of confidence, quietly tugged Zhu Zhanji's sleeve, and said in a low voice: "Your Highness beware, uncle's statement like this, I think there is a reason for him, maybe he has already experimented with himself, wouldn't it be ...... if you bet with him?"

"Impossible!"

Zhu Zhanji said: "It's just a suspicious tactic, he just wants me to think so, and then change the bet, this kind of thing, he hasn't done it once or twice." ”

"What if" Hu Shanxiang still didn't want Zhu Zhanji to lose: "If it's true, then His Highness will lose"

Zhu Zhanji said indifferently: "If you lose, you will lose." If you lose to someone else, the money is really lost, but it doesn't hurt to lose to him. ”

Putting his mouth next to Hu Shanxiang's ear, Zhu Zhanji said in a low voice: "We can't just have one son."

If a son is born in his family, let us marry our daughter to his son, and the bride price will be exceeded. If his family gives birth to a daughter, he will be able to marry our son, and let him give more dowry when the time comes, anyway, no matter how it is calculated, we will not lose! ”

Yang Shaofeng and Zhu Zhanji were already close, although Zhu Zhanji deliberately lowered his voice, Yang Shaofeng still listened to it, just pouted at the moment, and said to Zhu Zhanji: "Look! ”

When the words fell, Yang Shaofeng waved the flag in his hand.

Shen Hao on the high platform had been paying attention to Yang Shaofeng's movements for a long time, and now he saw Yang Shaofeng waving the flag in his hand, and even reached out to cut the rope.

The height of three zhang is not high, it is about the same as the height of a three-story building in later generations, and it may be a little higher than the building.

Then Zhu Zhanji watched as a ten-pound iron ball and a one-pound iron ball smashed to the ground at the same time, the only difference was that the ten-pound iron ball was bigger than the one-pound iron ball.

Immediately afterwards, something that surprised Zhu Zhanji even more happened - the iron ball and cotton of the same weight, the result was that the iron ball landed first, and the cotton landed later than the iron ball!

In order to confirm whether he was wrong, Zhu Zhanji simply set his eyes on Hu Shanxiang again: "Just now, did you see it clearly, or I was dazzled?"

Hu Shanxiang hesitated and said: "Maybe the concubine and His Royal Highness are dazzled."

Yang Shaofeng said: "What are you two going to do, you two want to repay the debt, but it's not much, hurry up and give the money." ”

Squatting down and touching the iron ball, and then touching the cotton ball, Zhu Zhanji snorted and said: "What's the hurry, isn't there still a ten-zhang and thirty-zhang experiment that hasn't been done, besides, just now I saw that the iron ball and the cotton ball landed at about the same time." ”

"Don't panic, I'm going to do the experiment of ten zhang and thirty zhang soon." Seeing that Zhu Zhanji was planning to cheat, Yang Shaofeng simply motioned for Shen Hao to climb up the ten-zhang platform, and sneered: "After all, I am a righteous gentleman, even if I win you, I must win above board." ”

Zhu Zhanji snorted coldly, and simply stopped paying attention to Yang Shaofeng, but stared at Shen Hao, who was crawling towards the ten-zhang high platform.

After Shen Hao climbed onto the ten-zhang high platform, Yang Shaofeng glanced at Zhu Zhanji, and waved the flag in his hand again vigorously - the result still did not change.

At this time, there was no point in continuing the experiment, and Shen Hao naturally didn't have to climb the so-called thirty-zhang high platform.

Cursing, he took out ten ten-dollar treasure bills from his sleeve and handed them to Yang Shaofeng, Zhu Zhanji asked again: "Now it's time to tell me what's going on."

Yang Shaofeng didn't answer directly, but waited for Shen Hao to climb down safely from the high platform before ordering someone to light the Kong Ming lantern again, looking at the rising Kong Ming lantern and saying: "Why can the Kong Ming lantern fly higher and higher, why won't it fall?"

Troubled by Yang Shaofeng's continuous problems and betrayal behavior, Zhu Zhanji couldn't help but shout a little crazy: "What do you want to prove."

Also, it's not that the Kong Ming lantern won't fall off, but it won't fall off until the fuel runs out. ”

Yang Shaofeng snorted and nodded: "Yes, the fuel will fall when it is burned out, so when the fuel is burned and when the fuel is burned out, what is the difference?"

Zhu Zhanji always felt that he had caught something, but this feeling disappeared without a trace as soon as it appeared in his mind, and after thinking for a long time, he tentatively asked: "Does it have anything to do with fire or air?"

Yang Shaofeng said: "I suspect that the earth under our feet has gravity, and it is precisely because of the existence of gravity that we can stand on the ground, and the iron ball will fall from the high platform to the ground."

When the fuel in the Kong Ming lantern is burned, the air will be heated, resulting in thrust, and when the thrust is greater than the gravitational force, the Kong Ming lantern will naturally rise.

When the fuel of the lantern is burned out, it means that the upward thrust is gone, and the lantern will fall to the ground. ”

Grabbing two pieces of wood from the side, Yang Shaofeng rubbed the wood with both hands: "Look, when the two pieces of wood are rubbing against each other, we can feel the resistance, but when we rub the wood against the ground, the magnitude of this resistance is different."

If the drag force between friction is called friction, and if the force of the earth attracting us is called gravity, then what is the relationship between gravity and friction"

Zhu Zhanji was completely dumbfounded, stared at Yang Shaofeng and said, "What does it matter?"

Yang Shaofeng spread his hands and said: "I don't know, so I plan to train a group of students to study this thing, and one day I will be able to study it." ”

Zhu Zhanji still hasn't figured it out: "What can I do if I understand the research?"

"You've played with the firebolt"

Yang Shaofeng said: "What is the principle of the firecracker, how far is the projectile that shoots out directly, and what will happen if the rifling of the spiral is engraved in the firecracker tube, whether it can increase the range or increase the stability, so as to improve the shooting accuracy."

And the machine tool we built in Yangjia Zhuangzi, that thing is now propelled by water power, if it is replaced with something else, what if it is driven by fire?"

A series of questions completely stunned Zhu Zhanji, and after pondering for a long time, he didn't come up with a reason, but just asked stupidly: "How does your head grow?"

"Normal, long!"

Yang Shaofeng glared at Zhu Zhanji angrily, and then continued: "Now let's talk about growing vegetables in the greenhouse."

Whether it's vegetables or grain, it's basically spring planting, summer growth, autumn harvest, and winter except for wheat, basically nothing can be planted, but we have already planted a green time in a greenhouse, guess why?"

Zhu Zhanji, who had been completely taken to the ditch, asked stupidly: "Why?"

"Temperature!"

Yang Shaofeng put on an unfathomable look, only a feather fan was missing in his hand, otherwise it would be like Zhuge Zhiliang: "It's too cold in winter, so I can't grow vegetables." And we use greenhouses to grow, we can use various methods to keep warm, so we can grow vegetables in winter! ”