"I see...... I see...... Wonderful...... Wonderful! ”

Hearing Xie Xiuqi's explanation of how he discovered centrifugal force to invent the centrifuge, Li Mao muttered, as if he was attracted by Xie Xiuqi's words, but his doubts gradually disappeared, and a trace of amazement and approval flashed in his eyes.

Immediately, he muttered for a while, but a hint of doubt welled up between his eyebrows.

"Centrifugal force? I know all the ins and outs of centrifugal force as you discovered, but ...... What exactly is this force and what is its definition? What is the scientific principle of centrifuge using centrifugal force? ”

I saw him look at Xie Xiuqi and mutter.

Xie Xiuqi suddenly froze, and the young man thought about it, and a bitter color appeared between his eyebrows.

I saw that he muttered for a while, and his mouth was already very respectful and asked: "Boss, I don't know what you are interested in strength and movement...... Definition of mechanics...... How? ”

Li Mao said: "This old man knows it." ”

Xie Xiuqi nodded: "What about terms such as speed and quality?" ”

Li Mao's eyes already had a hint of impatience: "These physical terms, there is no need to ask. ”

He looked at Xie Xiuqi inexplicably, his eyes were full of doubts-these terms are the basis of physics, how could he not know? Has he really forgotten what happened? Isn't it entertaining the old man......

Xie Xiuqi didn't notice Li Mao's demeanor, but he gradually tried to say, "That...... The old man should also know the function of kinetic energy with velocity and mass...... Uh, the formula ......"

He carefully worded his words, and then sighed even more: "Forget it, the old man should know the causal relationship between force and speed and mass—think about it, if it is the same speed, it takes more force to stop a heavy carriage than to stop a light carriage?" And if it is equal weight, is it more necessary to stop faster than to stop slower? ”

Li Mao became more and more puzzled and impatient: "If the weight is equal, the faster the kinetic energy will be, and if you want to stop it, the more work you need to do." At the same velocity, the heavier the kinetic energy, the greater the work, and the more work needs to be done to stop. ”

The amount of work done depends on the amount of force and the time it takes to make it. Therefore, if you want to do work to stop the carriage in an equal time, the greater the work you need to do, the greater the force you need - these are the basic physical formulas, don't you know? ”

Xie Xiuqi was stunned.

It seems that these basic definitions and relationships do not need to be explained......

It's just that I was cautious, but the old man said a bunch of nouns and formulas clearly, but an ancient man educated himself as a college student in the 21st century?

He thought to himself, laughing and crying.

Then, he seemed to think of something again, and a hint of clarity appeared in his eyes.

Yes, I almost forgot, you need to know that this has been changed by the traverser, and the era of science has been established, but you can't fall into inertial thinking, and think it's ancient in history.

When I first flipped through the elementary physics book in the study, I also saw that its definition system was basically complete - not to mention that the elementary physics book was probably just a textbook that did not deal with the cutting-edge theories of this era?

Reassured, Xie Xiuqi suddenly gushed: "When an object moves in a circle around a certain central point, its direction will change all the time. At each instant, the direction of motion of the object moving in a circle is not the circumference, but the tangent of the circumference. ”

"Therefore, when an object moves in a circle, inertia forces the object to continue in the direction of its trajectory, that is, the tangent of the circumference, or in other words, in the direction of its straight line at each moment, instead of following the direction in which it turns next, and thus has an outward centrifugal force—"

Li Mao waved his hand violently to restrain Xie Xiuqi's talking, only to see him groan, after a little thought, but he was already thoughtful, only to see the old man clasp his palms, but he shouted happily: "I see!" And so it was! ”

Xie Xiuqi smiled: "The principle of the centrifuge lies in this: in the oil-water-carbon mixture, the carbon is the heaviest, the water is the second, and the oil is the lightest. At the same speed, the heavier the person, the greater the inertia and the higher the force. ”

Therefore, if the speed of the centrifuge reaches a certain speed, the oil and carbon water mixed together will be torn apart and separated from each other due to the inconsistent centrifugal force, and finally, the light and heavy will be separated. And the principle of driving its rapid rotation is even simpler - to drive the small tooth with the big tooth, the big tooth turns a circle, and the small tooth has turned countless times, so it can drive the rapid speed at a slow speed. ”

Li Mao's eyes gradually brightened when he heard this: "I see...... No wonder...... I should have thought of it a long time ago, leverage...... Cogs...... Rapid turning. The higher the rotational speed, the greater the centrifugal force of inertia. If the centrifugal force reaches a certain value, the oil and water with different forces can be separated in pairs......"

He couldn't help nodding and groaning, and after a long time, he finally raised his head to look at Xie Xiuqi, and the old man was already full of strange expressions: "Centrifugal force...... Centrifuge...... It's true, it's wonderful. ”

He muttered, gradually with great admiration.

Immediately, he suddenly seemed to think of something, but he was flustered again.

"It's just ......" I saw Li Mao groaning and looking at Xie Xiuqi again: "It's just that oil can be stored in water, and it can be mixed with water without floating on its own?" Isn't water buoyant to any of these objects? and the specific gravity of oil is lighter than that of water. How did they come together in the first place? ”

Xie Xiuqi was stunned, and a trace of embarrassment appeared on his face again-Nima, this involves the molecular level, what did Lao Tzu say?

After a long time of helplessness, Xie Xiuqi finally looked at Li Mao, who was looking at him: "Boss, it's like this." Just like charcoal, charcoal and water are mixed in pairs, and after standing for a certain period of time, the charcoal precipitates, the water becomes clear, and the charcoal and water are separated. The centrifuge just makes the process faster. Therefore, since solids such as charcoal can be mixed with water to form charcoal water, why can't the trace amount of oil stored in charcoal be mixed with water? ”

He cleverly avoided answering, just giving examples of how it could indeed be mixed.

"That's right......" Li Mao muttered thoughtfully.

Then, he looked at Xie Xiuqi with curiosity on his face again: "It's just that, how do you know that there must be a trace of oil powder in the charcoal in the fire field?" ”

He questioned again.

Xie Xiuqi was already a little sad - still asked? I also asked if I couldn't be friends, don't do this, dear......

I would like to say that this is the result of capillary osmosis + combustion oxygen demand at the same time......

But the problem is that capillary permeation is easy to explain, but combustion requires oxygen......

In case you are interested in getting to the bottom of it, it is impossible for me to tell the periodic table now, prove the oxygen content in the air by the way, and then pull out the inorganic chemistry from the chemical formula of combustion, and even more from the combination of the gains and losses of c+O2=CO2 to form new substances to pull out the molecular atom electrons.

And according to your posture of curiosity about the 100,000 whys of the baby, I may have to get a microscope for you to prove it after I talk about molecules, atoms, and electrons.

Well, microscopes are already available in the West these years, and I think my Great East is not far behind, but the problem is that they are all extremely crude artificially ground microscopes, and it would be good to be able to see cells.

And the microscope may be talked about by you all the time, once it is endless...... I suspect that the wave-particle duality of light is about to come out at the end......

Or, I will have to explain why there is always an endless amount of oxygen in the air, and extend to plant photosynthesis and organic chemistry, cell biology - and finally maybe TM can involve molecular biology, genetic engineering, genetic engineering!

As the saying goes, everything is possible, and science extends in all directions. No matter which way you go, as long as you go deeper, my brother will die......

Xie Xiuqi burst into tears when he thought about it, and he suddenly felt the deep malice towards him who had come in this era when science was in the ascendant.

Gradually, he also resented the king of Yongzu beyond the depths of his soul - his soul is faint, can't you go back to ancient times and use modern scientific knowledge to pretend to be b? What kind of trouble is it to come up with science and tell them that everything has a scientific principle?

You have forced this time and space over and over again, cool and cool, I don't want to think about how to live this day if someone comes to take over?

Xie Xiuqi, the pick-up man who felt that his life was simply unbearable, had a sad face, and pondered for a long time with a constipated look on his face, and finally looked up at Li Mao again.

"First, after the wood is burned into charcoal, what is it...... Structure...... More sparse. ”

He looked at Li Mao tentatively again, his eyes were full of "Yours, understand?" A look of doubt.

Li Mao frowned, and a trace of doubt already appeared on his face.

Xie Xiuqi sighed secretly - he had forgotten what the specific principle was, only that the wood fibers would become very loose after being carbonized.

He thought about it helplessly, and finally his eyes lit up: "You think, there is water in the wood, and this water is burned out, won't there be a lot of space in the wood?" These spaces may be invisible, but they are always there? ”

"Meet...... Reasonable. Li Mao stroked his gray beard and bowed slightly.

Xie Xiuqi breathed a sigh of relief: "Second, oil and water are liquids, which are easy to be absorbed by loose things. It's like that...... Water can quickly soak the cloth, but not the stone, because the stone is denser. ”

He looked at Li Mao expectantly and said.

Li Mao groaned, but this time he nodded.

Xie Xiuqi also nodded, but there was a trace of apprehension in his eyes: "Third, everything needs air to burn, and ......it needs air."

As he spoke, he looked at Li Mao nervously, and his eyes were already full of "Brother, please understand"

"It's nature." Unexpectedly, this time, Li Mao happily bowed his head and said: "In this regard, when His Royal Highness the Ancestor talked about the safety of gunpowder transportation and preservation, he also proved by experiments that there are elements required for combustion in the air. It's just that His Royal Highness the Ancestor also said that at that time, it was not possible to analyze the principle of the existence of the burning element, and what kind of substance it was, so I just let our descendants explore it on their own. ”

Xie Xiuqi was immediately overjoyed: "Then the old man doesn't want to think about it, this oil is sucked in by charcoal, and it's okay to be outside, but the more inside, and even the deeper it is, how can it be fully exposed to the air?" Combining the above three points, why can't a trace amount of oil powder be adsorbed deep into the charcoal and not burned out because it cannot contact the air? ”

He couldn't wait to say, and Li Mao's eyes suddenly lit up again.

"I see, I see! The old man's confusion is finally relieved, happy! Joyfully! Centrifuge...... It's wonderful, wonderful! He laughed, clapping his palms in admiration.

Xie Xiuqi sighed.

It's finally perfunctory...... Happy your sister, you're cool, but I'm almost exhausted, okay?

The young man is full of the look of the rest of his life, but he is also modest/pretending to be b: "In fact, the younger generation has studied some details that can be seen everywhere in life, and likes to investigate the roots, so that they can discover these." Then they are combined and flexibly applied, and then they become centrifuges. You can't go to the hall of elegance, and you can't be so praised by the boss. ”

～～～～～～～～～～～～～～～

This chapter is indeed written by me and changed again and again, and I don't know if it's rigorous enough...... You don't need to be completely rigorous, but you can't always affect the reading of the officials......

Welcome the majority of book friends to come and read, the latest, fastest, and hottest serialized works!