Once this question is opened, Jian Chen knows very well that his two brushes are light, so he has to avoid the important ones. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

"Today, we don't consider what matter is, or whether it is perceived only because it exists, or whether it exists because it is perceived, let alone the soul and consciousness of people, but only about the most basic matter that has nothing to do with people."

"In a sense...... Of course, maybe I'm not right...... It is just that in a sense, matter is the first attribute of all things. First there was matter, and then there was the rest. ”

But as far as matter itself is concerned, matter itself also has inherent properties. For example, I said inertia, for example, mass that I just defined, which is inherent in matter itself. ”

As soon as the issue was touched, opposition was already raised. Everyone has their own philosophy, and none of them are mainstream or official ideologies these days. There is no God, and there is no doctrine.

It seems that a very simple sentence is the primary, even though Jian Chen has deliberately bypassed many problems, there are still too many objections when it comes to this.

In the previous days, from mercury and atmospheric pressure to the model of the reciprocating steam engine and the coordinate system analytic geometry. None of this touches on the roots, so these people are both novel and excited, and at the same time happily accept it all.

But now when it comes to philosophy, there will inevitably be disagreements between the two sides, and this disagreement is precisely the level that Chen Jian does not have an overwhelming advantage to refute.

Fortunately, the first question is not philosophical but simply the notion of the intrinsic properties of matter.

One of them stood up from the crowd, saluted, and asked, "Jian Chen, is speed an inherent property of matter?" ”

Jian Chen shook his head and said, "Speed is relative, there is no absolute. If there is only one object in the world, then velocity is meaningless, so it is not an intrinsic property of matter. Assuming that a void has no reference, how do you know if you are going any further? ”

"You can tie a rope."

"So this rope determines not just one object, but two objects. In this case, how do you know if you're going forward or if the rope is back? ”

Jian Chen said: "For another example, you are standing here now, you are motionless to us, but you are not moving compared to the sun?" Obviously you're moving, but you're not moving relative to me. ”

The man shook his head and said, "As you say, if there is only one substance, then how do you know if it has mass?" Unless a second person comes along to measure it. ”

"This is not the same as speed. The substance is there, don't you close your eyes and there is nothing? Now, I close my eyes and you're still there, right? I don't know if you're walking or not, but I know you definitely still have mass, you must have inertia, and if you run fast, you will fall forward instead of backwards if you stumble. In other words, inertia and mass exist absolutely, without relativeness. ”

"What's the difference between that pebble and a flying pebble?"

"Flying stones, first stones, then flying stones."

"So the flying pebbles have speed, does it also have the inertia you say? What exactly is inertia? You say that speed is not inertia, but inertia is reflected in speed, right? ”

Chen Jian was confused by this question, scratched his head and said: "To give an inappropriate example, horses must be colored, and then there will be black and white yellow." Color is like inertia, and black and white flowers and yellow are like speed. Are there any colored horses in the world? There is no horse without color, and a horse must have color. ”

"If so, what color is the still stone?"

"When a stone is stationary, the velocity is relatively zero. You are right to say that it has speed, and it is right to say that it has no speed, but the key is whether you think zero is meaningful or meaningless. The inertia of the stone is reflected in the moment when it is not forced. At this moment it is still, then it is still; If it flies thirty steps per instant, then it will remain thirty steps per instant. Unless subjected to an external force. ”

"And what is speed?"

"There are two elements to speed. Direction and quantity. Speed must have a direction, and there must be a quantity. So if you say that a stone at rest has a velocity of zero, it means that it has a velocity of zero in any direction for three hundred and sixty weeks. ”

"Is there a speed in the world where there is only quantity and no direction?"

"Nope."

"When Pangu opened the heavens, were everything still or in motion?"

"I don't know. There is a world after the opening of the heavens, and there is no world before the opening of the heavens. After the opening of the sky, there will be all things and inertia. Relatively speaking, some are moving, some are stationary, and they will not change unless they are subjected to additional force, and if we assume that there is no force at all, then everything will tend to be the moment the sky opens. ”

"The moment the sky opens, is it moving or quiet?"

"Constant movement is stillness. If a stone flies forward without any external force, then we can know its position at any time due to inertia. This is a kind of stillness, a kind of stillness that only has the properties of matter itself. ”

"If a pebble flies in the air, it divides time infinitely, divides it into infinitesimal hours, and in this infinitesimal time the pebble does not move forward. Then it can be seen that the speed of the stone at this time, this infinitesimal time, is zero. Is zero multiplied by infinity? ”

When this question was asked, everyone laughed, and it could be seen that this might be a joke, or maybe it was because Jian Chen suddenly answered so many questions, and the questioner probably really hoped that Jian Chen could answer it.

Jian Chen also smiled, and said helplessly: "If I could answer this question, I would have climbed to the Temple of the Sages and picked up the staff of the high priest that no one dared to pick up for hundreds of years." I can't answer this question because I don't understand it. Who dares to answer this question? ”

After looking around, everyone was laughing, and no one wanted to answer.

The people who have tried to answer this question have gone crazy for hundreds of years, and those who have not gone crazy can only consciously ignore this question.

A few people also secretly breathed a sigh of relief, and in just a few words, Jian Chen had already answered two unknowns.

I don't know the movement and stillness before the opening of the heavens, I don't know the movement and stillness of absolute time, which proves that this person has no ambition, at least at this time, to obtain the honor that everyone envies to the point of madness but does not dare to touch - to know everything, to explain the whole world.

When a new problem is explained, it also creates a newer problem, and there may be more problems after the newer problem is solved.

The person who asked the question was slightly disappointed that there was still no answer to the question, but he still solemnly saluted Chen Jian to show his gratitude, and Chen Jian laughed at himself after returning the salute: "It's like telling a story, and there is always a background to the story before telling a story." Now that the background is finally over, I can finally continue from this background. As I said, it's just a bold hypothesis, a possibility. Including everything we already know, there may be another explanation, but all these explanations are just a hypothesis or even difficult to prove until the world is explained, just to see if this hypothesis can be proved or falsified. ”

"If one day a man comes forward and says that a man is dying of starvation not because he has not eaten, but because of something else, such as because of a whirlwind somewhere in the sea, and a man is dying of starvation...... As long as he can prove it, then we can accept it. ”

This time, there was finally a good-natured laugh from everyone, and some of the more outlandish ideas such as asking Jian Chen if time was a substance stopped. Obviously, Jian Chen has disarmed and surrendered, and there is no need to chase to the end of the road, and there may be some people who want to know the relationship between strength and quality.

Jian Chen was finally able to turn around and draw a force analysis of the ball on an inclined plane. With hundreds of years of simple logical thinking and the basis of the existence of coordinate systems, forces and reaction forces, mass, inertia, and attraction without knowing what they are, this force analysis can still be recognized.

"Ladies and gentlemen, we must first understand one thing. One pound of iron, the kind of attraction to all things that is supposed to exist is the force of such a length as a spring, then two pounds of iron is twice as much, and three pounds of iron is three times. That is to say, the attraction of any mass object is related to mass, and the tiny force on each tiny mass is the same, which is fed back to us with a macroscopic, observable reading after a simple superposition method. ”

"Then, the acceleration mentioned above is related to the force of the whole and at the same time to the mass of the whole, so it is only related to the coefficient of the force of the whole and the mass of the whole divided by a coefficient. We can call this force some kind of force, and this force is defined as a force that produces so much force on an object of mass A, and is and is only related to mass. ”

"As we all know, the number of catties is the amount of meat eaten by Ji Xia's sister back then, and this is measured. Then we can also set a rule for this force, so that it will be convenient to talk about it in the future. Speaking of force, what is the first animal that comes to mind? ”

This time the answers were varied, but it was still the most common ploughing cattle that were said. The people were agrarians, and the ox was not the most powerful animal they had ever seen, but it was the first thing that came to mind when they spoke of the concept of vigor - as for the tiger elephant, they could not even do any special farm work, and they were naturally inferior.

"Well, let's settle on this ox, which is the size of the hypothetical attraction on all things that a pound of matter is subjected to. So from what we just learned that force is something that gives an object an acceleration, so let's calculate how much speed this bull force can increase in the time of a drop of water? ”

"This is a simple Pythagorean algorithm, but the measurement is not accurate, and it can be retested in the future. Let's first roughly calculate it, and then stand up at any angle to see if the algorithm is about the same. I can't help it, I want to ask people to make the most exquisite clocks, but unfortunately I can't make them. This leaky pot timer also took hundreds of silver coins to make, and it can drop exactly 3,600 drops per hour, so let's define the time of this drop. ”

Second, one of the mangs of Qiuhe, there is no such word in this world, but another word is selected to replace it, but this second is actually two seconds compared to another second.

Once the most basic definition is done, the rest of the questions are much simpler. A force analysis plus the Pythagorean theorem, it is easy to calculate an answer.

In the end, the answer is that the force of one ox can increase the acceleration of one pound of objects by four steps in one second.

This level is acceptable due to friction and measurement levels. The result of conversion to Chen Jian's familiar knowledge is eight meters per square second, which is one-fifth worse than 9.8, but it is acceptable.

After completing the most difficult definitions and philosophical concepts, the rest is logical, and there is no need to go through such troublesome explanations and definitions.