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Chapter 971 Are you paying attention to him?

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    ?

    In other words, the universe seems to be destroying itself.  This is an absurd result, since we see no sign that the universe is dying.

    The universe is not collapsing, so there must be some force against gravity, so the conjecture that "the universe is expanding" is put forward, saying that it is this expanding force that is against and counteracting gravity.

    Chu Lihua stared at the sky, what she imagined is not necessarily true, there is no evidence, isn't it?

    Starting from the general theory of relativity, the Belgian scientist Lemaitre developed a theory of the creation and expansion of the universe.

    He pointed out that if the universe is really expanding, then today¡¯s universe must be larger than yesterday¡¯s, and yesterday must be larger than the day before yesterday.  , this point is vividly called "cosmic egg".

    That is to say, the "cosmic egg" started from a point with a big bang and continued to expand until it became the universe we see now.  This is the origin of what we call the Big Bang Theory.

    Look, a conjecture of a new theory appeared in this way. Starting from Einstein's general theory of relativity, it led to the conjecture of the expansion of the universe, and the theory of the big bang was born. The Belgian scientist Lemaitre put forward this conjecture  .

    I did not go to him to confirm some of my guesses about Qing Yunfei.

    Because, I always feel that Qing Yunfei is too capable of sophistry.

    But in fact, maybe the theory is different?

    He had a saying "Why do you always not trust me but would rather trust anyone else?"

    All the stars in the universe are constantly moving, some will gather together, and some will be separated, just like the huge strings are playing a magnificent symphony.

    Generations of us humans have been deeply interested in the starry sky above our heads, and we are also full of awe and reverence for the magical power of nature.

    By now, any elementary school student knows: the earth is round; the earth's rotation produces day and night; the sun is the center of the solar system; our earth revolves around the sun like other planets.

    However, it is not easy for our human civilization to have a clear understanding of these basic common senses.

    These "common senses" that you take for granted are not so "ordinary". It is the correct understanding of the basic overview of the universe that generations of people have experienced through countless ups and downs and repetitions.

    It is our insatiable curiosity that drives us to constantly explore the world around us and explore the vast universe.

    This is the homeland on which our human beings depend for survival. No matter how large it is, human beings still study it with great enthusiasm.

    However, for the husband who spends more time with him than the children, is he too arbitrary?

    Our ancestors always believed that human beings lived on a flat land.  The assumption of "a round sky and a place" is very consistent with what the eyes see.  The wise men of Egypt and Babylon believed that the earth was a hemisphere suspended in the air, with an abyss at the end.

    It wasn't until 500 BC that some people began to realize that the earth is not flat.  According to the ancient Greek mathematician Pythagoras, the harmonious beauty of nature is composed of various perfect geometric figures and numbers.

    The world is the masterpiece of the Creator, and the hemispherical shape is not perfect in the geometric three-dimensional shape, so it can be deduced that the earth should be a spherical shape.

    More than 100 years later, Aristotle finally found the corresponding evidence: the first evidence is the sequence of images of sailing ships on the sea.

    When you see a sailboat going away on the seashore, you always see the hull disappear first, and then the mast and sail disappear, instead of seeing them shrink into a point and disappear at the same time;

    Conversely, when a sailboat is coming towards you, you always see the mast and sails first, and then the whole hull.

    If the earth is flat, this phenomenon is very unreasonable.  But if the earth is spherical, it can explain this phenomenon well.

    Does it mean that as long as you calm down and observe Qing Yunfei carefully, you will always find the truth that has always existed but has been selectively ignored by you?

    It seems that in addition to the evidence just now, there are two important evidences to prove that the earth is round:

    The second evidence is the movement of the stars observed during the long journey at night.  If you walk long enough in the direction of the North Star at night, you can watch some stars behind you gradually disappear on the horizon, while new stars rise in the sky ahead.  This phenomenon also shows that the earth is spherical.

    A third piece of evidence is the shape of the Earth's shadow during a lunar eclipse.  During a lunar eclipse, the moon will slowly sink into the earth.in the shadow of  The shadow of the earth on the moon is an arc, which is an important evidence to prove that the earth is spherical.

    Now this process can be explained clearly in a few words, but to really discover and prove them, many people spent countless efforts to verify them.

    Aristotle's claim that "the earth is spherical" has aroused great repercussions in intellectual circles.  He was the first to demonstrate the shape of the earth empirically rather than speculatively.

    But people at that time could not accept this point of view.  If the earth is really spherical, why don't we "fall" head-down and feet up as we walk?

    This problem has been tormenting many scientists for more than two thousand years, because there is a serious contradiction between the common sense of up and down concepts that people experience every day and the observed evidence that "the earth is spherical".

    In other words, many things, even if you can guess roughly, because the boundary of ignorance is too big.  So, basically choose not to believe in the end.

    Unless, someone comes up with stronger evidence.

    But for her husband, who was supposed to be her closest person, Chu Lihua found that she didn't pay as much attention to understanding him as she did studying various knowledge of the universe.

    Even for the people in the club, Chu Lihua used to think of ways to get in touch with their hearts.

    Just imagine, do you really treat him as a family member from the bottom of your heart?

    What I asked for and what I compared was to let him treat myself according to the standards of his family.

    But myself

    It is said that the effect of force is mutual, and the effect of love is also mutual, right?

    For two people who come together because they love each other.

    ? I used to spend a lot of thought in order to get Qing Yunfei, but after I "got it", I only wanted to get the rights, but forgot my obligations.

    Just like what Mr. Yang Jiang said, if you want to train a person who can do great things, you must make him endure hardships and hardships, and only then can he develop a character of perseverance.

    A person will obtain different degrees of self-cultivation and different degrees of benefits after different degrees of exercise.  Like spices, the more crushed and finely ground, the stronger the aroma.  (Remember the site URL: www.hlnovel.com
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