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Pyramid of Khufu.
It is the largest pyramid ever discovered, and its entire body is made of stones, with no adhesive. It is said that if 100,000 craftsmen move bricks day and night, it will take at least 20 years to complete the construction.
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<> handmade chocolate flowers, a combination of nobility and exquisiteness, admire the crunchy it can become so feminine.
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The Hong Kong-Zhuhai-Macao Bridge, a highway built on the sea. It's really amazing. China's bridge construction technology is leading the world.
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Or the Three Gorges Hydropower Station in our country. This is the world's largest water hub project, which took 17 years to win the world, and has remained the world's first.
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The Sky Eye Telescope is the world's largest and most advanced radio telescope, and human beings rely on this Sky Eye to explore the mysteries of the universe, and the Chinese are too great.
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What amazes me the most is the world's largest single-aperture radio telescope, which took 22 years to build.
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A man-made cabin at an altitude of 4,003 meters above sea level in the Alps, established in 1915 as the only shelter for many climbers. Think about it, there was no mechanical engineering at that time, it was all about physical strength and intelligence.
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The Taj Mahal, I've always felt shocked, that feeling, that confession, that directness, that action, that architectural charm, shocking.
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Our canal in China, the Beijing-Hangzhou Canal, has driven many cultures from ancient times to the present. And business.
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Have you ever heard of a tunnel boring machine, with 4,500 horsepower, this overlord used it to dig 57 kilometers of tunnels a day.
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I used to do science popularization, the world's largest excavator made by Krupp in Germany, digging 10 meters per minute, which requires five people to operate together.
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I remember it was in May 2010 when scientists discovered that an asteroid was heading towards Earth. But it turned out to be definitely a man-made object. After months of chasing it, nothing changed. A star-type with no propulsion.
Yes, I wanted to say to the teacher after graduation, teacher, you have worked hard, thank you for taking care of us, but because of some delays, I haven't said it until now, and I regret it now when I think about it.
Lin Yilian's "Words Don't Reach the Meaning" originally had such a song, which encapsulated all the feelings of a person who is not good at expressing himself. Love Lin Yilian's single eyelids, love her little gentleness and little stubbornness. In this song, there is no pretending to be a deep love veteran, there is no heart-rending unforgettable, and there is just an ordinary person's interpretation of love. >>>More
I don't know if these people who drive littering like this when they walk on the road, but littering like this when driving is not just as simple as destroying the environment, we must have heard the news that sanitation workers were killed while cleaning the garbage on the road, and the culprit is these littering drivers or passengers. On the other hand, if the garbage hits a passerby or a vehicle behind it, it is also a sign of extreme irresponsibility for the safety of others.
Of course not, but the American Academy of Sciences announced it 10 years ago"Aliens exist", but they have not been able to produce evidence. However, in recent years, scientists in many countries have discovered extraterrestrial creatures (not aliens) through research, and the American Academy of Sciences has also announced that they have only discovered extraterrestrial creatures.
Antares is not the biggest. Having said all this upstairs, the largest planet so far is the star VY Canis Major, which is about 2,200 times the diameter of the Sun, about 80 to 10 billion times the volume of the Sun, and nearly 100 times the mass of the Sun. If it were placed in its current position in the solar system, its edge would go straight to the orbit of Uranus. >>>More