BACK TO RENTED HOME

Harry returned to the city in which he resides in order to complete his studies there. The previous days were very difficult for him, in which he not only lost the one he loved and wanted to marry, but even lost his parents forever.

He had never expected that such things would happen to him, especially since he was still young, his life was getting worse and worse.

These things left a black shadow in his heart

he might never recover from.

When he arrived in Oxford, by taking the subway, he entered his apartment

The rented apartment, of course, was small, there were only two rooms and only a bathroom.

Use one room to study, while the other to sleep, and play games.

Harry has been fond of games since he was young, he still remembers the first time he played a video game, the memories were unforgettable.

That was when he was ten years old, on summer vacation, when he got relatively high grades in his end-of-year exams, his father brought him a playstation, he doesn't remember exactly which version it was. Hours and days to complete the final stages of the game.

His father didn't mind it, as long as he was studying hard and getting good grades.

And that's what happened, Harry was a good student, he wasn't a genius, but he was still studying hard.

When he entered his small apartment, he opened the bedroom, turned on his somewhat modern playstation, and though it had been used before, due to lack of money often, he bought it from a used hardware store.

When he opened it, the company's well-known logo flashed, and he started playing.

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Somewhere in Liverpool

THERE was a high school teacher explaining to his students about Newton's law of gravity.

"Good morning students, did you study well, I hope so."

"yes "

The students shouted with a smile

"Oh, well, today I'm going to teach you about the law of gravity."

A male student lazily raised his right hand

"Professor Branden, did Newton not discover gravity when an apple fell on his head? Then why should we learn about it?"

The male student asked lazily.

"Ha-ha-ha-ha, you're always Leo, you're always lazy, well tell me, if Newton hadn't discovered gravity, how would we have been able to invent airplanes?"

Leo was silent and did not answer

The principle of operation of the aircraft is very simple

It can be said in a simple principle about the operation of an airplane that airplanes fly when the movement of air through their wings applies an upward force on the wings (and thus the rest of the plane) than the force of gravity that pulls the plane toward the ground. Daniel Bernoulli, an eighteenth-century Swiss mathematician and researcher described The physics behind this phenomenon is the study of fluid motion.

What is Bernoulli's principle and its relationship to the work of the plane?

Mathematician Daniel Bernoulli described the physics behind the work of the plane by studying the motion of fluids. Bernoulli discovered that the pressure exerted by a moving fluid is inversely proportional to the fluid's velocity, in other words the fluid pressure decreases with increasing fluid velocity and vice versa.

The same principle applies to air movement; The faster the air, the lower the air pressure. The slower it moves, the greater the pressure. Aircraft wings are designed to take advantage of this fact and create the lift force needed to overcome the weight of the aircraft and make it fly through the air. The lower parts of the wings are more or less flat, while the tops are curved. Additionally, the wings are tilted slightly downward from front to back, so the air moves around a longer wing above the top than it is below.

The air flowing over the top moves faster than the air below it, so the air pressure above the wing is lower than it is under the wing, the slower moving air molecules clump together creating the upward differential pressure, and the faster the wing is moving through the air the more The lift force increases, and eventually the plane exceeds the force of gravity.

So what is the law of gravity?

In the late seventeenth century, the English scientist Sir Isaac Newton said that the gravity that makes objects fall to the Earth is the same force that keeps the planets in their orbits. Newton showed that both Kepler's laws and Galileo's observations of Earth's gravity can be explained by one simple law of universal gravitation, the law states However, every celestial body in the universe attracts another celestial body, and this attraction is caused by the gravitational force that depends on the mass of the body and the distance between the bodies.

Newton's law applies not only to celestial bodies but to any two bodies that have mass, and the law can be summarized as follows:

The force of gravity between two objects increases with the increase of their masses, the greater the mass, the greater the force of gravity.

The gravitational force between two bodies decreases as the distance between them increases, meaning that the farther the two bodies are from each other, the less their mutual attraction, and on the contrary, the closer the two bodies are, the greater the attraction between them.

Newton also defined in his book Mathematics a mathematical concept that any force is equal to the mass of the body to which the force is applied multiplied by the acceleration due to the force, and this is expressed by the following formula where F stands for force, m stands for mass and a stands for acceleration:

F = ma

This shows that the force of gravity increases in proportion to the mass of the accelerating body, but this acceleration remains constant, meaning that any two bodies, regardless of their mass, accelerate equally if they fall from the same height.

The teacher continued to explain and was really happy with the students' response to the explanation

The atmosphere in the class was very lively, and the information provided by the teacher was interesting and useful.

After an hour and a quarter, the class ended.

The bell rang and the students got up.

"Bye, don't forget to do the homework, study well for the test"

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Hehehehehe look who's here, the lord of destruction is explaining to high school students about the law of gravity, hehehe

THAT'S FUNNY