Скачать или смотреть Why Egyptian Pyramids Still Stand After 4,500 Years.

The Enduring Mystery: Why Egyptian Pyramids Still Stand After 4,500 Years. The Egyptian pyramids, colossal monuments of ancient engineering, have captivated humanity for millennia. Built around two thousand five hundred and sixty years before the Common Era", these structures have defied time, standing tall for over 4,500 years. But how have they managed to survive for so long? Let's uncover the secrets behind their longevity. The pyramids' durability starts with their design. The ancient Egyptians used a simple yet ingenious shape - the pyramid. This shape distributes the weight evenly, creating a stable structure that's resistant to collapse. The construction process was equally impressive: - Massive limestone blocks were cut and transported from nearby quarries. - These blocks, some weighing up to 80 tons, were stacked tightly together. - The outer layers were polished smooth, creating a seamless surface. - The interior contains intricate chambers and passages, carefully designed to support the immense weight above. This meticulous construction created a nearly indestructible monument. The pyramids' location plays a crucial role in their preservation: - Built on the Giza Plateau, they sit on a solid limestone bedrock. - This foundation has remained stable for millennia, preventing sinking or shifting. - Egypt's dry, arid climate has minimized water damage and erosion. - The desert environment has protected them from vegetation growth that could have weakened the structures. The ancient Egyptians chose their building materials wisely: - Limestone, the primary material, is durable and resistant to weathering. - The inner cores often used local limestone, while the outer layers used finer, more durable limestone from Tura. - Some pyramids, like the Great Pyramid of Giza, used granite for specific structural elements, adding extra strength.