If the four seasons in a year are enlarged to the Milky Way Galaxy, we could get the four galactic seasons on the orbital revolution of the Solar System surrounding the galactic center. What’s more, it could be defined or marked by the 52 playing cards of one poker.

Fortunately, acting as the main role of Anthropocene, we may lie in the beginning of the galactic-summer which symbolizes the booming of all kinds of update life on the Earth, while the dinosaur family was extincted at the end of past galactic-winter.

The four galactic seasons, together with the four seasons in a year and the four micro seasons in a day, they have formed the interesting law of Matryoshka doll of Russia.

Introduction

Are the playing cards only for playing games?  Do they have something to do with the evolution of the Milky Way Galaxy?   Have you ever noticed the difference between dawn and nightfall?  Why the time period between the 19:00～21:00 always be called “golden time” period in a day? What does it imply by the four seasons in a year?   What is the relationship between the four seasons in a year and the Milky Way Galaxy?

You may get interesting answers to the above questions in the following chapters.

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1.  the four seasons of the orbital revolution of the Earth surrounding the Sun.

It is well known that there are four seasons in a year of 12 months based on the orbital revolution of the Earth surrounding the Sun.   it is always the North Hemisphere by default to divide the four seasons as the following style:  spring includes February, March, April [2,3,4]; summer includes May, June, July [5,6,7];  autumn includes August, September, October [8,9,10];  winter includes November, December, January [11,12,1].    It is shown by Figure 1 as follows,

Figure 1: the four seasons of the orbital revolution of the Earth surrounding the Sun.

2.  the four seasons of the orbital revolution of the Solar System surrounding the galactic center.

It is interesting that there are four seasons in the Milky Way Galaxy based on the orbital revolution of the Solar System surrounding the galactic center.   What’s more, it could be defined or marked by 52 cards of one poker, while the big and small Jokers of the poker could be regarded as the two focuses of elliptical orbit.   Therefore, the four suits of playing cards actually represent the four seasons of the orbital revolution of the Solar System surrounding the galactic center. It is shown by Figure 2 as follows.

That is to say, the ♦️,♥️,♣️,♠️of one poker corresponds to the galactic-spring, summer, autumn and winter respectively.  Each card symbolizes 4.5～5 Ma(million years) for the Solar System running on the orbital revolution in the Milky Way Galaxy.  Then it is reasonable to deduce that the period of the Solar System's revolution around the galactic center would be 234～260 Ma.

Figure 2:  The four seasons of the orbital revolution of the Solar System surrounding the galactic center.
Then where is the Anthropocene [1] nowadays running on the orbital revolution of the Solar System in the Milky Way Galaxy?  It might be on the point of the♥️1 that in the beginning period of 5 Ma of the galactic-summer that usually symbolizing the highlight booming period of thriving life of all kinds of species on the Earth.

3.  the four micro-seasons in a day of 24 hours on Earth.

There are four micro-seasons in a day of 24 hours on Earth. It is shown by Figure 3 as follows,

Figure 3: The four micro-seasons in a day of 24 hours on Earth.

From 9:00～15:00 belongs to micro-spring, from 15:00～21:00 belongs to micro-summer, From 21:00～3:00 belongs to micro-autumn, From 3:00～9:00 belongs to micro-winter.

It is well known that the lowest temperature period in a day would be between 4:00～6:00 that belongs to the micro-winter and people always take less activities as far as possible the same as in the snowy winter of a year.

That is why people always choose time period between 15:00～21:00 for relaxing activities, such as having a cup of afternoon tea, taking part in sports, square dancing, having a dating, taking a walk with intimates, 

watching kinds of performances and so on.  Especially the time period between 19:00～21:00 is always regarded as the golden time period in a day to have kinds of social gatherings.

4.  the phenomenon of four seasons behaving in the law of Matryoshka doll of Russia from the Milky Way Galaxy to the Earth.

Based on time period scale from the four galactic seasons to the four micro ones in a day, it is not difficult to find that the phenomenon of law of Matryoshka doll of Russia had been running for tens of millions of years in the Milky Way Galaxy.  It is shown by Figure 4 as follows,

Figure 4: The phenomenon of four seasons behaving in the law of Matryoshka doll of Russia.

We are deeply impressed by the four seasons in a year, yet we may neglect the four micro seasons in a day.  Of course, it is impossible for human beings of one generation to experience the four galactic seasons in the Milky Way Galaxy.

No doubt, it is the toy of the Matryoshka doll of Russia that implies the profound meaning of evolution of kinds of celestial bodies in the universe.  It is shown by Figure 5 as follows,

Figure 5:  the toy of the Matryoshka doll of Russia.

5.  What did it mean for the evolution case history of the dinosaur family on Earth?

It was reported that the earliest dinosaur fossils [2] existed on Earth about 245 Ma ago.  So, if the time period of the Solar System surrounding the galactic center was 235 Ma, then the dinosaur family should have been boomed on the point ♥️3 of last round of galactic-summer and was extincted on the point ♠️12 of last round of galactic-winter.   If the time period of the Solar System surrounding the galactic center is 260 Ma, then the dinosaur family should have been boomed on the point ♦️10 of last round of galactic-spring and was extincted on the point ♠️13 of last round of galactic-winter.

To sum up, the dinosaur family was boomed between the end of last round of galactic-spring and the beginning of last round of galactic-summer and yet was extincted at the end of last round of galactic-winter.

Therefore, the evolution case history of the dinosaur family just implied the case sample of what was the difference between the galactic-winter and galactic-summer and even what took place in different galactic seasons on the Earth in the cycle of four seasons in the Milky Way Galaxy.

6.  From the time point of dinosaur family extinction about 66 Ma ago, what had been taking place on the Earth during the time period of past galactic-winter and galactic-spring?

It could be concluded in five aspects as follows,

• The birth of the Pacific Ocean [3] on the ancient Jiazhou plate sinking to the ocean floor in the middle of the unique supercontinent on the equatorial area and the following competition evolution with the (ancient) Atlantic Ocean (including the Indian and Arctic Ocean), ranging from the state of expanding to shrinking.    It is shown by Figure 6 as follows,
   

Figure 6: The competition evolution between the Pacific Ocean and the (ancient) Atlantic Ocean (including the Indian and Arctic Ocean).

• The birth of the Cross “+” shape ocean-plate whirlpool [4] of double whirl arms on the equatorial area and its self-rotation anticlockwise and drifting towards the North Pole in a speed as slow as that of a snail moves.  It is shown by Figure 7 as follows,

Figure 7:  The Cross “+” shape ocean-plate whirlpool of double whirl arms.

• The dissembling of the unique supercontinent [5].  Except for the sinking to the ocean floor of the ancient Jiazhou plate (the largest one), the rest of the ancient plates had been evolving to the redistribution state nowadays.  It is shown by Figure 8 as follows,

Figure 8: The dissembling of the unique supercontinent and the following redistribution of the rest of the ancient plates.

• The full blooming of the ancient plate flower [6] in view of the Earth upside down. It is shown by Figure 9 as follows,

Figure 9: The full blooming of the ancient plate flower in the view of the Earth upside down.

• The birth of the big end of head of the “ω” shape giant dragon[7] of cracking ridge and its coming into being on the ocean floor globally until its small end of tail existed on the Arctic Ocean floor.  It is shown by Figure 10 as follows,

Figure 10: The evolution of the “ω” shape giant dragon of cracking ridge on the ocean floor globally.

Accompanied with the extinction of the dinosaur family, the subsequent evolution of the ancient plates and oceans contributed to the foundation leading to the existence of human species wondering wildly on the rest of the ancient plates globally and the highlight of Anthropocene in the galactic-summer of the Milky Way Galaxy.

What does it imply by the phenomenon of the four seasons in a year?

The phenomenon of the four seasons in a year is actually the mimic miniature version of the four galactic seasons due to the Solar System surrounding the galactic center.   It implies the booming of all kinds of updating life in the time period of galactic-summer and catastrophic shifting in the time period of galactic-winter on the Earth.

The orbital revolution of the Solar System surrounding the galactic center could be defined or marked by the 52 cards of one poker and even be divided into four galactic seasons reasonably.   It should be a law of Matryoshka doll of Russia that ranges from the four galactic seasons in the Milky Way Galaxy to the four micro seasons in a day on the Earth.   However, as the start of Anthropocene, we may lie in the time period of the beginning of the galactic-summer, while the dinosaur family was extincted at the end of past galactic-winter.   When the dinosaur era on the unique supercontinent of the Earth came to an end, all the subsequent evolution of the ancient plates and oceans had been playing the foundation for the human species to boom up on the rest of the ancient plates and leave some highlighted residuals of Anthropocene in the far away future on planet Earth.