Gisr el-Mudir Check Dam: Reverse Engineering Pyramids
Chapter 1

The physics of moving mountains

Chapter 2

The great ramp debate

Chapter 3

Aligning with the stars

Chapter 4

The water-powered elevator at Saqqara

Chapter 5

Pyramids around the world

Ch 4 · The water-powered elevator at Saqqara
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007skaty Volcano-Fashion Pyramid Construction

Water lifts the block, / right up through the core, / volcano fashion!

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Building from the inside out reduces the need for external support.

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007skaty The Gisr el-Mudir check dam stands near the Step Pyramid.

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The dry moat water treatment

007skaty Connected stone basins filtered sand and debris from the ancient water supply.

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The central shaft hydraulic lift
BETA

007skaty Control the water flow to discover how a central shaft hydraulic lift raised pyramid stones.

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Fun Fact

Ancient hydraulic lifts: The 4,600-year-old Step Pyramid of Djoser may contain the world's oldest water-powered elevator, floating blocks up a central shaft.

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Glossary
hydraulic lift (noun)
A device used for raising heavy loads by applying force to a liquid under pressure. A 2024 study suggests ancient Egyptians used this system to construct the Step Pyramid of Djoser.

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Gossip

Would you trust a water-powered elevator?

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Quiz

To what approximate height could the hydraulic lift system have raised stones inside the Step Pyramid?

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Quiz

How did the proposed hydraulic lift system inside Djoser's Step Pyramid raise heavy stone blocks?

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Quiz

What descriptive term did the 2024 research team use to describe building a pyramid from the inside out using a central lift?

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Quiz

In which scientific journal was the groundbreaking 2024 study on Saqqara's hydraulic lift system published?

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Quiz

Who was the legendary royal architect credited with designing the Step Pyramid of Djoser?

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Quiz

What is the name of the massive, ancient stone enclosure near Saqqara recently identified as a check dam?

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Quiz

According to recent research, what was the actual engineering purpose of the southern section of the 'Dry Moat' around Djoser's pyramid?

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Quiz

In which century BC was the Step Pyramid of Djoser built, marking Egypt's first monumental stone pyramid?

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