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I think its interesting how all the blocks haven't crashed down yet.

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I think its interesting how all the blocks haven't crashed down yet.

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When they had 173 men pull on ropes and the statue is 20 feet high

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My favorite part was the water i front of the sled, it sonds cool

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I think it is amazing how they got
all the blocks to pile to make the pyramids considering the blocks way like 1 or more than one ton

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I an amazed that it took less than 23 years to build the Great Pyramid. For something that big and only take that long with no technology I bet we could not do that.

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Its interesting how the egyptians couldn’t move the heavy stones so they used water and sand to make it slide easier.

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Ever since the discovery of the first pyramid, scientists have pondered over how ancient Egyptians built these monumental structures that are visible even from space. Though there are some theories about the construction technique, the question that was always left unanswered is how workers were able to lug the giant limestone bricks that weighed as much as 2.5 tons, from the quarry to the pyramid sites that were located hundreds of miles away.

While dragging them over rudimentary sleds was the obvious answer, it would have required superhuman strength against the friction of the desert sand. Turns out that the workers did have some assistance . . . from ordinary water! What is even more amazing is that the answer to the puzzle has been right in front of Egyptologists for many years, thanks to a wall painting inside the tomb of ancient Egyptian nomarch, Djehutihotep.

The artwork that depicts a Pharaoh being dragged by a large contingent of workers, has one significant detail that had so far been misinterpreted - A man pouring water in front of the sled the Pharaoh is being dragged upon.

Egyptologists had always thought that the man was performing some kind of purification ritual. However, some scientists now believe that the water was being poured for a totally different reason - to help pull the sled across the sand.

This revelation was made on April 29th in the journal Physical Review Letters, by researchers from the University of Amsterdam and the Foundation for Fundamental Research on Matter.

The team led by Daniel Bonn from the University of Amsterdam arrived at this conclusion after conducting extensive testing in their laboratory, by sliding a weighted tray across both dry and damp sand mixed with varying amounts of water. In dry sand, heaps formed in front of the sled as it was dragged along, slowing it down dramatically.

However as water was added, it made the sand more rigid, helping reduce both the force needed to pull the sled and the friction against it. That's because the water helps form capillary bridges between the sand particles, causing them to stick together like glue. What was interesting was that the force required to pull the sled reduced in proportion to the stiffness of the sand - And it was not a small amount either, but as much as 50% which meant that half-as many workers were needed to move the heavy bricks.

But, there was a tipping point - After the moisture exceeded a certain amount, the stiffness started to decrease and the capillary bridges, melt away, causing the sand to clump up around the sled once again. According to researchers, the perfect balance appears to be when the volume of the water is between 2-5%, the volume of sand - a proportion ancient Egyptians seemed to have mastered perfectly. Now if we could only find a painting that would tell us how the smart workers constructed these impressive structures without access to modern mechanics, life would be perfect!

Resources: independent.co.uk,iflscience.com

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Ancient Tomb Painting Provides Answer To Pyramid Building Mystery

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Ever since the discovery of the first pyramid, scientists have pondered over how ancient Egyptians built these monumental structures that are visible even from space. Though there are some theories about the construction technique, the question that was always left unanswered is how workers were able to lug the giant limestone bricks that weighed as much as 2.5 tons, from the quarry to the pyramid sites that were located hundreds of miles away.

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I think it's cool how they used simple machines and tools to build the pyramids.

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I think it's interesting about all the ways they could have built it.

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 HUNTER MASON       I think the coolest part is how the move the 2 ton rocks

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 HUNTER MASON       I think the coolest part is how the move the 2 ton rocks

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i like about it is that how they made tombstones out of it

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I think it is really interesting 60 to 70 men would pound out a stone.

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what i think is the most amazing thang is that thay moved 2 ton bloks of brick with just water

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I think it's really interesting how it took 20,000 people to build just one pyramid. It is also cool how millions of blocks, weighing almost 3 tons each, to build a pyramid.

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I thought the most amazing thing was how long it took to build them. It took shorter time to build it then it did to build other bigger structures.

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it is awesome how they moved the 2.5 ton blocks and put them on top of the other blocks thats insane.

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i thought it was cool how they build the premeds directly lined up with the heavens

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The most interesting thing to me was how they go to stack it to a triangle/pyramids cause it was a really heavy 2.5 ton stone.

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I was amazed on how they were able to move the 2.5 ton of stone block. I just thought that was amazing .

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I think the most amazing thing was how long it took them to build the pyramids because back then it would of took them about 20 years but i bet now it would take about 1 year.

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I think it is really interesting how they kept track of where stuff is in the pyramid and how they built it to be a maze because i would of token way longer and it would be really hard to do with two and a half to blocks of stone and also just how it is staying up with all that weight and how they moved it with water.

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