How were the pyramids built?
In: Engineering
There were many Pyramids built before the Giza Pyramids. The very first Pyramids weren’t a perfect Pyramid shape, they were a few feet high and built by simply stacking small stones by hand.
Later Pyramids were designed using better geometry, built by rolling or wobbling stone into place and then moving it up earth ramparts. These were smoother but not enormous. A similar theory can be seen here for the Easter Island statues
[https://www.youtube.com/watch?v=J5YR0uqPAI8](https://www.youtube.com/watch?v=J5YR0uqPAI8)
As for the Giza Pyramids, nobody knows the definite answer to how the Giza Pyramids were built because the stones were enormous in size. . Some theories include:
Earth Ramps with the wobble drag or rolling technique – Wobble, drag or roll into place then drag the block up a ramp, the blocks can be wet first. This becomes a problem given the height and stone weight but they might have zig zagged around the pyramid to decrease the incline.
Cranes – Cranes at the time weren’t able to lift blocks this size to very tall heights but they might have assisted in places.
A system of flotation – My favourite. The theory makes sense considering the Nile but it’s hard to believe. [https://www.youtube.com/watch?v=C1y8N0ePuF8](https://www.youtube.com/watch?v=C1y8N0ePuF8)
Pouring – Built casts and pour in concrete, similar to how the Hoover Dam was built.
Top down – The Pyramid was originally a natural stone mound and carved top down. Evidence however shows the material came from queries elsewhere.
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