Why does a circle have 360 degrees?

This is an interesting question as well as a sad one. When I answer this question, there may be 500 thousand people scolding me.

The two hidden problems involved in this question are:

How was the angle invented? How is the angle determined?

That's why the ancients took it once. Now, what do they think?

Why do they determine the degree so that a circle is exactly 360 degrees instead of 360.438+0? . 360.2 So, aren't they perfect numbers like 100 degrees and 10 degrees?

This numerical imperfection can't help but make people wonder what is the profound truth in it.

And this question to ask, it is this truth, the following answer.

Many people think this is a coincidence.

More coincidentally, according to the ancient calendar, that is, the lunar calendar, a year is exactly 360 days, and then every few years, January, just corresponds to that year.

In fact, it developed from astronomy. "Degree" is a unit of time and has nothing to do with angle.

The lunar calendar mentioned above, because the ancients can't figure out why there are more days each year, but how can the problem of more days be considered wrong?

This involves the calculation method, the so-called "rounding" calculation method.

This method is to leave a square space, draw an inscribed circle in the middle and insert a circle in the center. Within a year, the shadow of the sun on the circle will fall on the circle, and the ecliptic will be determined to calculate the sun, the moon and the stars.

The key is that there is something wrong with its calculation, which is not completely consistent with the observation. This problem has been going on for at least 6000 years. This pit is the problem of pi in the calculation method of "the sky is round" It is an uncertain thing and has no fixed value at all.

In fact, pi does not exist in reality and we can't see it. It is a magical intermediate variable produced in the process of mathematical calculation.

In Song and Yuan Dynasties, multi-point measurement was used to reduce the error, and the error of pi was still more than 1/10000, but it was still inaccurate. Calculated by seconds a day, the error in Song Dynasty is close to one tenth of a second, and in Yuan Dynasty it is close to one hundred and fifty thousandth of a second.

As mentioned earlier, the calculation method of "the sky is round" actually assumes that the earth is square and the inscribed circle refers to the ecliptic, that is, this calculation method is summarized based on the observation of celestial bodies. It can be seen that before the birth of this measurement method, people have observed that the ecliptic is round, which can be deduced. The ancestors' observation of astronomy was much earlier than this calculation method, and they could even infer the previous observation of heaven and earth.

Then again.

Because the number of shadows falling on the inscribed circle is 365, the number of ecliptic shadows is taken as "degree" to measure the sun, moon and stars. This circle actually refers to the ecliptic, so according to the number of ecliptic shadows, the circle is 365 degrees.

However, it is inconsistent with the actual observation, and there will be an extra day every few years. So Jupiter is used to remember the age, try to correct it. However, the results of measuring Jupiter are even more difficult to look directly at. The "degree" of the ecliptic became 364 degrees, which was observed until the Han Dynasty. After countless years of orbit calculation, it is not correct. In the Han Dynasty, it abandoned the custom ephemeris of celestial orbit and made a virtual star, which was forced to conform to the solar calendar.

Therefore, the year is recorded by an integer of 360, and the extra days that cannot be accurately calculated are made up by embellishing the month.

It can be seen that it is incredible that our ancestors can still remember the year accurately under the condition of inaccurate calculation, and its essence is the thought that man should follow heaven.

Therefore, the "degree" of the ecliptic is artificially adjusted to 360 degrees, the circle refers to the sky, and the midpoint is 360 degrees.

The unit "degree" refers to the ratio of the sky, the sun and the shadow. It's a unit of time, and the spring and autumn is a few degrees. When it falls on plane geometry, it becomes an angle, and its internal essence is the same.

The pseudo-history in the west says that their ancestors used something like a regular triangle to define the internal angle and degree of a circle, which makes the concept of "degree" blurred. There is no profound reason for this thing. There is no reason for this idea. There is no origin, no development, and it suddenly appears. It is the same concept as a ghost, so people don't know why, and no one knows what the "degree" of an angle is anymore, so how to determine it.

This thing becomes metaphysics!

If you look at the history given by the west, too many things can't be explained and become metaphysics. They have a good reason to answer all the questions, that is: I don't know!

Isn't it normal not to know because you're dating?

In order to make up for this defect, countless ancestors and many great men have been created, but they still can't explain it, and they continue to forge astronomy and even physical objects.

The key point is that the four seasons, 24 solar terms, 24 hours, and stars invisible at high latitudes are all written in, which is simply a ruin.

There are four seasons in the Mediterranean? You can see so many stars in such a high dimension in Holland, and you are still painted into constellations?

It's all done by one person or two or three people, and then date it.

Very funny, how did they come down, and on what carrier were the words recorded?

Mud?

Try to bury a piece of dry mud in the ground and see if you can find it after one month!

Some people want to say that people there are dry and it doesn't rain all year round. So, how does the arid environment breed civilization? It's civilized to enter the barren land, isn't it?

Then people will say that it is the Garden of Eden, where milk and honey flow, not drought, right?

After discovering the contradiction, he said that it was copied by Arabs, and later generations copied it back.

Regardless of what records Arabs rely on, and whether Arabs directly deny this rubbish, I ask, why don't Arabs use it themselves? Just recorded it a few times, right? Saved for thousands of years, just to leave it to you, right? Of all people, Qian Qian has served you for thousands of years, but you are the best, right?

The explanation depends on one mouth, and there is no basis.

All the evidence is false, there is no need to refute it, they have officially announced it themselves, and they are all "copies".

The so-called historical records are all theology, and they also pop up suddenly. There is no manuscript, not even Newton's gravity, no manuscript and secondary compensation. None of them can stand the scrutiny of even a little normal people.

Among so many perjury, the most retarded is that the floods in Egypt are beneficial to farmers, and there are more than 500,000 clay tablets.

These two things, but everyone will think there is a problem.

If there are a few pieces preserved up to now, to be honest, I have to admit this possibility, but there are more than 500 thousand pieces. ...

Oh, my God, there are so many retarded letters that have been written in textbooks for thousands of years!

If floods are really good for farmers and agriculture, what kind of water can Dayu manage, and what kind of rivers can he manage with endless money in past dynasties?

The pseudo-history of the west makes everything impossible to verify. It is very complicated for you to explore a thread of many things, and find that it is either dating or has no source.

The history of China's development is clear, an emissary and verifiable.

However, the current history textbooks are all westernized, which can't reflect the humanities, science and technology and ideas. It is better not to write, which will only increase the burden on students.

Compared with Records of the Historian and the Book of the Later Han Dynasty, it's just the dregs in the dregs, which can be directly thrown into the trash can after thousands of years of retrogression. Now there is only one historical chronology, and the garbage textbooks in the context of past dynasties have no specific content and can't explain clearly. It's better not to read it after reading it.

So in today's world, you think we are very scientific. In fact, our humanities have gone backwards for thousands of years, leaving only the empty talk of "rich as oil * * *" to maintain the dignity of civilization.

From history to reality, it is all western. What do we have left today?

I don't even know what 360 degrees is. Does anyone know that there was a map of the world in the Song and Tang Dynasties? Does anyone else know that people in the Tang Dynasty wore glasses? Does anyone else know that the Yuan Dynasty began to use steam engines? Does anyone else know that there were microscopes and astronomical telescopes in the Ming Dynasty? Does anyone else know that there are Miao, Song, Ming and Qing people in America? Does anyone else know which 12 star the 12 pointer on the clock stands for?

More than 3,600 books were banned in the Qing Dynasty, and all technical books were banned. Books were revised 100 years ago, and more than 320,000 copies were burned. Because of the appearance of movable type printing, tens of millions of Song books and Ming books have been collected and burned again, and many orphans who were burned in Yuanmingyuan will never come back.

After that, the twenty-four histories were not invented, and they were all deleted. Dozens of ethnic groups in China, mostly Zhu Xia tribes, have left ignorance and ignorance in thousands of years of history.

It was the Jin people who made the emperor wear robes, the Yuan Dynasty who made the emperor kneel, the Qing Dynasty who enslaved the emperor, and the foreigners who worshiped foreigners and fawned on foreigners were deliberately trained by publishing houses and academies invested by foreigners in the late Qing Dynasty.

There was no China after Cliff Mountain and no China after Ming Dynasty. Feel the weight of these words!

As a farming civilization, through the ages, cultivators have their uses, and those who learn well will be officials. However, nowadays, the society is westernized, people are impetuous and only pay attention to interests, and the number of fried films is endless. The motto of tranquility and far-reaching has long been forgotten. Even in a quiet and far away place, how to make money should be considered.

What's more, we should use capital to drive away all the farmers, and poison the last remaining farming characteristics, so that all the workers and peasants can work for the boss, and let the boss buy a villa, change a new car and keep five milks and six milks.

Tell a joke, after 80, you are bald, after 90, you lie flat. After 00, you don't know what hard work is. The original goodwill of human nature has disappeared under the capitalist market economy.

If all people over the age of 60 now step into the end of their lives, the simple qualities that the sages have spent thousands of years cultivating will all disappear and cease to exist, and the world will only show the evil of human nature, just like the West that has poisoned millions of people.

What we are facing now is that in the previous enlightenment reading "Saint Amethyst", the first sentence at the beginning was completely cut off.

Tell me, at present, does China still exist, or does it no longer exist?