A group of researchers from researchers at the Foundation for Fundamental research on matter, has discovered as they could the Egyptians moved large stones to create the famous pyramids.
Seems to be that they were pushed on the sand, but I had a trick, dry sand has a high and too wet friction impedes the passage, but there is a middle term, this problem is greatly reduced with the appropriate amount of water.
If someone likes to do sports on the beach will know perfectly what tires running on the dry sand, but also know the problems of the sand near the water more wet. However at an intermediate point, the sand is very similar to the asphalt and is where everyone runs along the beaches. Well we are just where most do sport, others like to force more and if you are introduced where there is water
This is very similar to the castles of sand, neither dry nor wet. I remember when I’ve gone to any beach, figures and large castles sculptors have spray near to wet sand.
Seems to be a group of Egyptians threw stones while others humidified sand, this could be a less friction between the stone and the desert floor, requiring less force to move the large rocks that were used in the construction of the pyramids.
Source of the article: BBC.
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