Significance of World Symmetry Day

The meaning of world symmetry day, the meaning of complete symmetry day: everything goes well, everything comes true. Therefore, friends send messages of blessing to each other, which makes this concept widely spread among people. The following is about the significance of World Symmetry Day. Let's have a look.

The meaning of World Symmetry Day 1 World Complete Symmetry Day refers to the date when the numbers are completely symmetrical in the Gregorian calendar. Such as 20101.2 (20100102), 2011.2 (20/.

World Complete Symmetry Day is more strictly called Palindrome Day. Firstly, the concept of palindrome day is expounded: when the date (the order of year, month and day) is represented by eight digits (the digits are not enough to make up 0), it is palindrome day that is read backwards, just like palindrome poems in literature. Taking 2011102 as an example, eight digits are divided into four groups according to two digits, and 20/1/02 representing the century, year, month and day is obtained.

We can see that the century number and date, year and month are mirror images of each other, so we can know the characteristics of the corresponding year only by considering the month and day. As we all know, there are 365 days in a normal year and 366 days in a leap year, so there are only 366 corresponding eight palindromes, of which 9220 corresponds to February 29, 0229, which is indeed a leap year. Although every day in a year actually corresponds to a year, the order of mirror images jumps, so it is necessary to analyze it briefly.

There are twelve months in a year, so there are only twelve years (at most) when the world is completely symmetrical, which are mirror images of 0 1 ~ 12, namely (in turn) 0 1,1and 20. Similarly, the century number with complete symmetry in the world can only be a mirror image of the date, that is, 0 1, 02,03,1,1,12,13,20,2/kloc. Then, considering that there are not 365,438+0 days in each month, there may not be all 65,438+02 perfect symmetry days in these possible centuries. For example, in the 4th century, the perfect symmetry of the world was only 1 1 day (because there were no 30 days in February), while14th century only had 7 days (five months without 365438+). This is the direct reason why today is wrongly counted as the 86th noon (7× 12+2).

The meaning of World Symmetry Day 2 1, the meaning of Perfect Symmetry Day: Everything goes well, everything comes true. Therefore, friends send messages of blessing to each other, which makes this concept widely spread among people.

2. World Complete Symmetry Day refers to the date when the numbers in the Gregorian calendar are completely symmetrical. Such as 20101.2 (20100102), 2011.2 (201/.

Although the origin of the concept of "World Complete Symmetry Day" is unknown and it is futile to explore its practical significance, at the very least, the Civil Affairs Bureau can make an exception for it, which is enough to prove that "symmetry" is indeed of extraordinary significance to mankind.

When it comes to symmetry in life, the image in your mind is probably like this-

In addition to the "symmetry" in reality that we can see with the naked eye, there are many abstract symmetries in human society.

There is a writing technique in literature called palindrome, which is to change or reverse the same word or sentence below to produce the effect of ending and ending. Su Shi often uses this way to "show off his skills" in his poems. In his "Two Memories of a Dream", there is a passage "xiuyan jade holds a slim bowl and spits out a blue shirt at random. The song swallows the water clouds and condenses the quiet courtyard, and the dream surprises the pine snow and falls on the rocks. " And this poem is a perfect palindrome poem, and its order is reversed-"Dream in the falling rocks, quiet courtyard." The shirt is a bit messy, and the slim bowl is full of jade. "The same is true.

Slogans such as "I am for everyone, and everyone is for me" that we are more exposed to in daily life are also typical palindromes. Palindrome also exists in English. Napoleon's sentence when he was exiled to the island of Elba: I was an able person before I saw the island of Elba (I was invincible before I saw the island of Elba) has become an eternal classic.

In the field of mathematics, there is a similar concept-palindrome number. Let n be any natural number. If the natural number n 1 obtained by reversing the number of digits of n is equal to n, then n is called palindrome. For example, 12345432 1 is palindrome.

In ancient China, people respected the sense of balance brought by "symmetry". Taoism emphasizes the harmony between yin and yang, and the fish of yin and yang in Tai Chi is a perfect interpretation of this symmetry.

The embodiment of symmetry in ancient Chinese characters is even more vivid-

The ancient Chinese character "Xuan".

The ancient Chinese character "Chuan".

The ancient Chinese character "Ji".

Why do humans pursue symmetry, or why do human society call opposites beauty?

In fact, it can be explained in one sentence-because people's structures are generally symmetrical.

Human symmetry begins with natural selection. Not only people, but almost all animals in the world can be classified according to symmetry: radiation symmetric animals and bilateral symmetric animals.

Radiation symmetry is a form of symmetry in which the body shape of an animal is radial. This figure is only different from top to bottom, and there is no difference between left and right. Generally, radiation symmetric organisms are aquatic organisms, such as jellyfish, corals and anemones.

Left-right symmetry is a more familiar and universal form of symmetry. Compared with the boundless ocean, the space on land is relatively narrow, and there are more obstacles and enemies. Therefore, most land creatures are left and right symmetrical, which can provide directional movement and facilitate predation and escape.

However, the above classification is not enough to cover all animals in nature, and there is another animal that has nothing to do with symmetry-sponge. It preys in a strange way, using a filtering method. Monomer sponge is like a vase, and every hole in the bottle wall is a "mouth". The sponge vibrates the flagella of the body wall, so that the seawater containing bait penetrates into the bottle cavity from these small holes and enters the body. With such a Buddhist predation method, sponges can grow at will and become a wonderful flower in the animal kingdom.

But the reason why human beings are generally symmetrical in structure is because there are many asymmetries hidden in the human body-the brain looks left and right, but the shape and function of the left and right brains are still very different; There are also left and right lungs, but our left lung has only two lobes and our right lung has three lobes; Although the heart grows in the middle, in fact, two-thirds of it is on the left, and only 1/3 is on the right ... Besides, many organs such as spleen, stomach, kidney and intestine are also asymmetrical, not to mention some people's faces are naturally asymmetrical from the sense.

And these asymmetries have also become evidence of human "imperfection".

As a result, the * * * understanding of the basic form of the human body has gradually formed people's aesthetic preferences, and based on its own "imperfect" status quo, it has forced human beings to have more yearning for "perfection". Therefore, it is not surprising that perfect symmetry has become the aesthetic basis of human unity.

Significance of World Symmetry Day 3 Many netizens believe that World Symmetry Day is a sweet day in pairs, suitable for showing love, confession and marriage.

Some netizens think that everything is ready, only the east wind is needed. I finally ushered in World Symmetry Day, but I don't have a girlfriend!

Since ancient times, we have seen many buildings and paintings with a symmetrical aesthetic feeling, so today, some good meanings have also been absorbed.

Many young people intend to register for marriage on this special day, but because of the spread of the epidemic, they can only stay at home temporarily.

Some people plan to tell their relatives today that this is definitely a golden opportunity, but looking at the city outside the window, the streets that should be busy are so quiet that people are afraid.

Everyone tacitly stays at home, always pays attention to the daily data changes of patients, silently prays for them, cheers for the staff who go to the front line and says-love you.

World Complete Symmetry Day refers to the date when the numbers are completely symmetrical in the calendar year. Such as 20101.2 (20100102), 2011.2 (201/.

detail

1, symmetric numbers are called palindromes in mathematics, such as101,that is, numbers that are symmetric from the middle to both sides also exist in odd numbers.

2. According to Article 1, the first "symmetry day" after a calendar year is 1 0 1 0 1, that is10/. China was in the Western Han Dynasty, and there were many "symmetrical days" in the first year of AD, such as 1 February 0 1, 1 March 0 1 and so on.

3. If we continue to calculate, we will find that the appearance of "symmetry day" will take ten years or even hundreds of years. For example, the last "symmetry day" on 20 1 1 year 02 was 20 1 year 02, and the last "symmetry day" was 200 1 year/kloc-0.

After 4.201001210 month, the next "symmetry day" is 2011210 month, and then February 2, 2020.

5. According to calculation, there are 565,438+04 days in the world that are completely symmetrical from the beginning of AD to February 2, 2020 (2020,0202).