Joke Collection Website - Cold jokes - What should a farmer do if he discovers the principle of anti-gravity? Will it be buried?

What should a farmer do if he discovers the principle of anti-gravity? Will it be buried?

On a question-and-answer platform, someone asked such a question: What should a farmer do if he discovers the anti-gravity principle?

Well, it's actually not a good question, just like "if I win 5 million, how should I spend it?" If it is self-cultivation, I will definitely ridicule it directly, but this time it is different. I decided to answer this question with the most serious attitude, so that students can change their understanding of this problem from the root.

First of all, I want to ask you a question:

Is Newton famous for realizing the existence of gravity?

Answer: Not really.

All this is much more complicated than most people understand. If we only realize that people have gravity on the earth, then in Aristotle's time, he put forward the concept of "heavy will sink, light will float". Actually, think with your head. How can people not realize that they are standing on a gravitational planet? As long as what you can directly think of is basically thought of by others, it is logical.

So what did Newton learn from seeing the falling apples? Let's take a look at the original text of the French enlightenment writer Voltaire, who recorded this detail:

1666, he retired to the countryside near Cambridge. One day, when he was walking in the garden, he saw a fruit fall from the tree, so he fell into meditation on gravity ... the force to make heavy objects fall is the same, no matter how deep the ground is or how high the mountain is, it will not be significantly reduced. Why doesn't this power extend all the way to the moon If this force really goes deep into the moon, isn't it the force that keeps the moon in orbit on the surface?

Look, the apple is not the point, it's the moon!

The "everything" of gravity means that besides everything on the earth, even the moon in the sky is bound by the gravity of the earth.

What's so special about this? Isn't this common sense?

This is indeed common sense today, but it was not then. According to the understanding at that time, the orbit set by astronomers for celestial bodies is actually a literal orbit-celestial bodies are moving along some invisible "orbits", which are actually a law, rule or dogma, and there is no internal connection between celestial bodies.

In other words, the highlight of Newton's thought is to unify the familiar gravity with the operation law of "high-cold" celestial bodies and drag the "creature" off the earth.

The first person who comes to mind is nothing.

Then the question is coming:

1. Has no one thought about this problem except Newton?

2. Is it possible for this theory to be captured by a farmer?

Answer the first question first: of course ... no! At that time, there was another person who was also studying the operation law of celestial bodies. He is the second president of the Royal Academy of Sciences-Hook.

As early as 1662, he discussed with Ryan, one of the founders of the Royal Society, how planets move in orbit. He guessed that there is an attraction between the sun and the planet, which may decrease with the increase of distance. He also designed a simple experiment to test whether gravity changes with height, but due to the precision limitation of the instrument at that time, no result was obtained.

1674, Hook published the book "An Attempt to Prove the Movement of the Earth from Observation". In his book, he clearly pointed out that all celestial bodies have a gravitational force pointing to their center, which will not only attract their own parts to make them unable to fly, but also attract other celestial bodies located in their area of action. 1686, Newton published Philosophy of Nature.

In other words, Hooke put forward the concept of gravity earlier than Newton.

Formula! Formula! Formula! The important things should be said three times.

Then why did this honor finally go to Newton? Because Hooke didn't give the formula of celestial gravity, the orbit of celestial bodies can't be restored by calculation.

As mentioned earlier, due to the accuracy of the instrument, it was impossible to measure gravity difference at different heights on the earth at that time. So Hooke doesn't know exactly how gravity is reduced.

What Newton did first was to realize that "the magnitude of gravity is inversely proportional to the square of distance". And the calculation formula is given. With this formula, the orbit of a celestial body can be accurately calculated, which is an ellipse! Consistent with the observed height.

Of course, the first thing that fits the calculation results is the orbit of the moon. What data is needed to calculate the lunar orbit? You need to know the distance from the moon to the center of the earth, and you need to know the acceleration of gravity of the earth.

Where did these data come from? The distance between the Earth and the Moon was measured by Hippocrates, an ancient Greek astronomer born in 190 BC, which is 60.5 times that of radius of the earth, while radius of the earth was measured by Eratosthenes, an ancient Greek astronomer born in 275 BC. Galileo measured the acceleration of the earth's gravity with a simple pendulum.

In this way, even if the theory of gravity officially falls, the formula it provides can perfectly calculate the orbits of the five planets and the moon, and truly realize the great pioneering work of "heaven and earth are one".

Inspiration cannot support scientific exploration.

Now, please answer the second question. Do you think it is possible for a farmer to publish all the principles and formulas of gravity and the proof process without systematic education?

If the farmer just said "there is gravity between the moon and the earth", it is completely worthless, because not many people have had this kind of "inspiration" throughout the ages, and it is not an achievement to think of it first, otherwise the discoverer of gravity in the textbook now is Hooke.

Well, now we know that even the gravity discovered hundreds of years ago is still so difficult. If the anti-gravity principle really exists, how can it be caught by a farmer?

You don't know the width of the sea until you have seen it. If you don't have a conceptual understanding of science, you will fantasize that you can understand the truth of the universe in a flash, thinking that an apple can make a person famous forever. There is no shortcut to science, and an epiphany is really useful, but at least this person should stand in front of the truth.

I am Qiu Zhiyu, a scientific creator with something, welcome to pay attention!