"Seven Wonders of the World Unresolved Mysteries | The Mystery of the Pyramids, Do You Know?

Inside the borders of today's Sudan and Egypt, and in the lower reaches of the Nile River, about 80 pyramidal structures are scattered. These pyramids vary in size, with the tallest reaching 146.5 meters. They are built with stones weighing between 1.5 to 160 tons each, stacked and interlocked together, representing one of the world's seven wonders.

Speaking of the Seven Wonders of the World, other marvels have gradually faded from people's view due to natural and human factors. Only the Egyptian pyramids still stand in the world today. These symbols of royal power and dignity hold many mysteries yet to be uncovered, waiting for people to explore and discover.

What are some of the unresolved mysteries of the pyramids?

• The Mystery of Numbers:
  The weight of the pyramid × 10^15 = the weight of the Earth.
  The height of the pyramid × 1 billion = the distance from Earth to the Sun (150 million kilometers).
  The perimeter of the pyramid base × 2 = the Earth's equatorial circumference.
  The perimeter of the pyramid base ÷ (height of the pyramid × 2) = Pi (π = 3.14159).
  And a series of seemingly ordinary yet magical numbers: 142857.
  The angle of the pyramid's ascending passage with the horizontal is 26°, while the side angle with the horizontal is 52°, exactly double 26°. This 52° angle is often referred to as "the limit angle of natural collapse and stability," and it is with this principle in mind that the pyramid was designed and built. Who designed and built it remains a mystery.

• The Geographic Mystery:
  The pyramids are located at the center of the Earth's magnetic lines, moving slightly with the Earth's motion, hardly affected even by earthquakes.

• The Mummy Mystery:
  Scientists have shown that the shape of the pyramid stores a unique 'energy' that rapidly dehydrates bodies, accelerating the 'mummification' process. At one-third the height of the pyramid, animal corpses like small pigs and dogs placed in trash bins not only avoided decomposition but also dehydrated and became 'mummies' themselves. Miniature pyramids built to the same proportions also have preservative effects, once popular in America for preservation and experimentation.

• The Curse of the Pharaoh:
  Legend has it that when Tutankhamun's tomb was first excavated, a stone tablet inscribed with the words "Whoever disturbs the peace of the Pharaoh, the wings of death shall come upon him" was found. Strangely, one of the lead excavators, the Duke of Carnarvon, died suddenly from a mosquito bite. Following this, a series of mysterious deaths occurred among those associated with the excavation and visitation, including drowning, pneumonia, shock after photographing the mummy with an X-ray camera, and other unexplained deaths. Within three years and three months of the excavation, a total of 22 people involved died mysteriously. According to local police records, since 1940, all 200 people who climbed this great pyramid ended up falling to their deaths.

How did the ancients 4500 years ago make such precise calculations? How did they know that a 52-degree angle is stable? How did they know to place the massive base of the pyramid at the center of the Earth's magnetic field? The magical non-decaying property within the pyramid and the bizarre curse remain mysteries to this day."