The wonders of the world have disappeared, so why are the pyramids the only ones that remain?

The wonders of the world have disappeared, so why are the pyramids the only ones that remain?

First of all, the structure of the pyramid is particularly stable, and even if it appears, it will not be seriously damaged, so the chance of preservation is very large. Secondly, its geographical location is also very special, this pyramid in Egypt is far away from war, from ancient times to the present, as long as there is no danger of war, it can withstand the test of thousands of years, is able to stand still today. Finally, its regional climate is very special, the pyramid is in the desert, and the annual rain is particularly small, so it will not suffer from the corrosion of the rain, and usually will not suffer any damage.

The pyramids were found in Egypt and the Americas, and in present-day Sudan and Egypt, the lower reaches of the Nile River are scattered with the remains of about 80 pyramids. The largest of them is the Pyramid of Khufu, which is 230 meters high and has a base length of 2.3 million stones, covering an area of 52,000 square meters. It is precisely because the pyramid is a square cone, large at the bottom and small at the top, and the foundation is stable that it has been preserved.

The pyramids of Egypt are only tombs, not religious, so they will not be damaged due to religious issues, the Mediterranean coast and the Middle East, is the region where civilization originated relatively early, and it is also a place where all parties have eliminated each other and there are many wars. Over the past few thousand years, countless kingdoms and empires have existed and disappeared, and religion has changed many times, and religious buildings such as temples and statues of gods are the most vulnerable to artificial damage due to religious changes. There are 80 existing pyramids in Egypt, the largest of which is the Pyramid of Gizza, built around 2600 BC, all of which were built by hand.

How the ancient Egyptians carved the stone and built the mausoleum, the layout of the internal passage and the mausoleum is like a labyrinth, and what method the ancient Egyptians used to build it, there are still different opinions.

Of the Seven Wonders of the Ancient World, the only ones that have survived are the pyramids. The reason why the pyramid has been preserved until now is that the 52-degree bottom bevel is consistent with or similar to the limit angle and stability angle of the natural collapse phenomenon, which should be a key factor. The inclination of the Great Pyramid is 52 degrees, and the inclination of the Pyramid of Kafra is 53 degrees, which is the most crucial factor in the preservation of the two behemoths after 5,000 years of crustal movement.

Of course, this also has to do with the fact that the calm Egyptians chose stones that matched their character instead of frivolous wood to express their national soul. Facts have proved that in addition to some small handicrafts and some dismembered and buried big guys, wood products can be passed on by luck, other architectural forms of art are difficult to escape the catastrophe of water, fire and decay for thousands of years.

Because each side of the pyramid is triangular, the triangle is the most stable structure in geometry, the material is more special, the stone building is more stable, and it is located in a desert location.

First of all, judging by the building materials of the pyramid, it was made of stone, while from the geographical burial environment of Egypt, it was basically devoid of stones. So, people at that time carried stones from hundreds of kilometers away from where the pyramids were built. Secondly, according to the construction technology and science and technology at that time, this is an impossible construction, because people at that time did not have a transport machine, can hang things] tools, in other words, this is a completely artificial construction, both costly and time-consuming a huge project, but it was still completed by the people at that time!

Therefore, the wisdom of the ancients is beyond the imagination of our people, after all, this project is placed in today's technologically developed today, and we may not be able to complete it.

The pyramids are known as the wonders of the world for several reasons:

1.Construction technology: Pyramids are huge stone structures built by the ancient Egyptians thousands of years ago, and their construction techniques are very advanced and sophisticated.

The construction of the Khobi Pagoda involved the transportation of huge stones, precise measurement and positioning, and complex construction techniques, which were very advanced at the time.

2.Enormous scale: The pyramids are some of the largest stone structures in the world, especially the Pyramid Group of Cele Giza in Egypt, including the Pyramids of Khufu, Kafra, and Menkaura. These pyramids are huge in height and massive in size, which is stunning.

3.Historical significance: The pyramids are important relics of ancient Egyptian civilization and represent the wisdom and labor of the ancient Egyptian people. The pyramids were a symbol of the pharaoh's eternal abode and burial ground, reflecting the ancient Egyptians' belief in death and the afterlife.

4.Cultural heritage: The pyramids are a World Heritage Site and are a UNESCO World Heritage Site. They have important historical, artistic, and cultural value, attracting tourists from all over the globe to visit and study.

In summary, the pyramids are called wonders of the world because of their construction techniques, huge scale, historical significance, and importance of cultural heritage, which have had a profound impact on human civilization and history.

The pyramid is the only one of the Seven Wonders of the World where Lu Lashen is truly fortunate to have survived early respect. （）

a.That's right. b.Mistake.

Correct Answer: a

The Pyramid of Khufu is huge, majestic, and breathtaking. It not only condenses the wisdom of ancient Egyptian architecture, but also is a perfect demonstration of their mathematical knowledge.

The base angle of the pyramid of Khufu is not 60°, but 51°51', thus finding that the area of each wall triangle is equal to the square of its height. In addition, the ratio of the height of the tower to the perimeter of the base of the tower is the ratio of the radius of the earth to the circumference, therefore, the height of the tower is divided by 2 times of the bottom edge, and the pi can be obtained. Its error in terms of bars, angles, etc., is almost equal to zero, and in a length of 350 feet, the deviation is less than inches.

Its circumference is exactly the Cupitt unit (320 meters) and the time of the earth in a year, its circumference is 2 is the time division of the equator, the circumference of the bottom of the tower (divided by 2 times the height of the tower (when it does not collapse, meters) is equal to, and the pi is about the same, its own weight of 10.15 million is the weight of the earth, and the height of the tower is 1 billion, which is about the average distance from the earth to the sun. The meridian of the earth passes right through the center of the pyramid. Every 25,827 years, the axis of the poles turns exactly once in a circle, and the sum of the two diagonals of the pyramid is the centimeter.

The list goes on and on, but as for how much knowledge and wisdom it condenses in ancient Egyptians, it is still a mystery that is far from being fully solved, waiting for us to explore.