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Chapter 970: Awareness of the Starry Sky

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    ?

    The Tengger Desert is mainly located in the Alxa Left Banner of Inner Mongolia, the Great Wall of South Vietnam, and the Helan Mountains in the east.

    ?Convenient transportation, rich landscapes, and the Alxa Heroes Club make Tengger highly respected.  Here, "the lonely smoke in the desert is straight, the long river is full of sun" is no longer just an ancient poem.

    However, the desert scenery is not as exciting as in the short video, nor is it as haunting as Sanmao's.

    Of course, "the lonely smoke in the desert is straight, and the sun is setting in the long river." I haven't seen it yet.

    As soon as Chu Lihua and Liu Xingting arrived, they felt that their mouths were dry.

    The wind blowing over the boundless yellow sand is not only hot, but also has a lot of sand.

    The whole person is like a hard-boiled egg.

    Let's take a rest for one night to go to work for riding a camel and rushing through the sand.

    ?Because of the special relationship between the two, they ended up staying in the mixed dormitory of the youth hostel, which is the kind where men and women live together.

    Youth hostels are always the busiest place on the way to travel. In the room, groups of all sizes come from all over the world. They all start discussing where to go the next day when they are resting at night, and some are discussing where they went that day. What places make people feel excited  Surging, exciting and unforgettable.

    Infected by such an atmosphere, Chu Lihua's decadent heart finally began to gradually become angry.  That's right, she's here to travel, why is she in such a sad mood?

    The next day, I got up early.

    The sun seems to be no longer hot, but warm.

    They also know that there is a Haloxylon tree they planted in the oasis on the edge of the Tengger Desert.

    That strange feeling made Chu Lihua relax wholeheartedly and devote herself to this trip.

    Flushing the sand is really exciting, that feeling.  It's a fight with some roller coasters.

    But at the same time, because it is in contact with the sand surface instead of suspended, it has a solid but exciting feeling.

    After getting off the car, Chu Lihua's heartbeat was still fast.

    ——"Xing Ting, is this more exciting and fun than a roller coaster?"

    ——"Then do you want to do it again?"

    ——"Haha, that's not necessary! That will kill the novelty."

    —— "Then where shall we go to play next?"

    ——"Let's go to see the Milky Way tonight. After that, I want to experience hiking in the desert."

    ——"If this is the case, we should start again tomorrow morning and walk about 53 kilometers. After crossing the five lakes, we can reach the best viewing area."

    ——"Okay, I'll listen to you, then"

    At this moment, Chu Lihua thought of someone for no reason—Qing Yunfei.

    Every time he and Chu Lihua went out to play, they always listened to Chu Lihua. Wherever Chu Lihua said to go, he would carry out it no matter whether it was reasonable or not.

    Although, afterward, it will be discovered that it was wrong to listen to Chu Lihua.

    But this kind of thing happens again and again.

    Is it because Qing Yunfei has a bad memory?  Obviously not.

    What is the reason?

    The answer is self-evident.

    Because, Qing Yunfei is not a person without opinions

    His love is actually hidden in every detail of life, right?

    No one is perfect, and of course it is impossible for him to be perfect so that he can follow his own mind all the time.

    If this time, Qing Yunfei accompanied me

    Seeing Chu Lihua's bewildered expression, Liu Xingting just followed behind without doing anything else

    At this moment, the wind and sand show the scene of "you are the wind, I am the sand, lingering to the end of the world".

    ? Chu Lihua's mind is full of Qing Yunfei, she doesn't know why

    Even, she regretted coming here.

    However, the next day, she and Liu Xingting went on foot to watch the Milky Way starry sky.

    The sky is full of stars, dreaming of the Milky Way, this is the memory of looking up at the starry sky outdoors in the summer night when I was a child. Now in the city, even on a clear night, it is difficult to reproduce this scene.

    ? As night fell, the lights came on, bringing intoxicating light and shadow to the city, but also shielding the brilliant galaxy in the night sky.  It is basically a luxury idea to look up at the starry sky in memory in the city.  Going to the desert to look at the stars and take pictures of the starry sky is the initial and most direct motivation for this trip.

    It was also Chu Lihua's original intention to prove that she was really good.

    Because, she has only seen the starry sky in the photos, and never, even when she was a child, the starry sky with pictures in her mind.

     The starry sky is the universe and the origin of life.

    I believe that Chu Lihua, who wanted to go to Mars to see it when she was a child, must have a reason for her obsession with comparison.

    In 1907, Einstein made important achievements in the study of general relativity. He discovered that both time and space can be bent.

    This is a bit contrary to our intuition, but Einstein said that the gravitational phenomenon of mutual attraction between objects proposed by Newton's law of universal gravitation is actually a manifestation of objects bending space-time.

    He made a metaphor that space-time is like the surface of a trampoline. If we put a ball on the trampoline, the trampoline will be pressed out of a small hole. If there are some other small objects around the ball, they will  They will roll into this small pit together.

    Remember the story of Newton, he said that the apple fell from the tree because the gravity of the earth attracted it, and Einstein told us that the apple fell because it was falling into the space-time pit caused by the mass of the earth.

    Bending space-time sounds a bit sci-fi and abstract. Chu Lihua remembered that there was a short story in that book explaining how this important theory was proven.

    At that time, Einstein guessed that the mass of the sun is very large, so when the light from other stars passes by the sun, it must be bent by the sun's huge gravitational force.

    How to observe and verify this idea?  If a star is behind the sun, we cannot see it from Earth because it is blocked by the sun.

    If the sun's gravitational force can really bend space-time and deflect starlight, then we should be able to see the stars hiding behind the sun, but the sun's own light is too strong, no matter what star's light can compare with it  Regardless, there is actually only one case where we can make this observation, and that is during a total solar eclipse.

    British scientist Eddington seized this opportunity. He observed the total solar eclipse. He not only saw the stars behind the sun, but also calculated the deflection angle of the light emitted by these stars. This angle is the same as that of Einstein.  The calculations for general relativity are almost identical.

    General relativity is a theory that describes gravity, it can be used to calculate the interaction of all objects in the universe, and it is more accurate than Newton's gravitational equation.

    Therefore, Einstein couldn't wait to use the gravitational formula of general relativity to calculate the way the universe operates.  massive objects until they all fall into the same pit.  (Remember the site URL: www.hlnovel.com
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