5 ms·

I'm not an egyptologist or a physicist. But I've always wondered what happened to the "concrete pyramid" theories. I know that it's only been pushed by Prof.

I'm not an egyptologist or a physicist. But I've always wondered what happened to the "concrete pyramid" theories. I know that it's only been pushed by Prof. Davidovits but I haven't really heard any proper critiques of it. (I'm not sure if that's because I haven't researched enough or if Davidovits is considered a quack.) Here's a NYtimes link: http://www.nytimes.com/2008/04/23/world/africa/23iht-pyramid.1.12259608.html?pagewanted=all&_r=1& http://www.nytimes.com/2008/04/23/world/africa/23iht-pyramid... And the geopolymer institute: http://www.geopolymer.org/archaeology/pyramids http://www.geopolymer.org/archaeology/pyramids edit// and the geopolymer papers download page: http://www.geopolymer.org/formulaire/download-articles http://www.geopolymer.org/formulaire/download-articles

sopooneo 12y ago
I have heard this theory before, and I understand it is made by reputable sources. But it's always baffled me. I would have thought even a freshman geology major could tell the difference between a man-made stone and one cut out of natural earth. But then, I don't know any geology.
anigbrowl 12y ago
They were obviously done with a 3d printer, there's clear evidence of stepping. I'll show myself out.
- Cthulhu_ 12y ago
  With 3D printers growing to the size where they can build houses from concrete (right now), I can see our spacefaring offspring in a few hundred years flying to remote planets and 3D printing pyramids.
  - lportion 12y ago
    Are they going to decorate the innards of said pyramids with diagrams of themselves hauling stuff with sledges, water and ropes too?
    - Thimothy 12y ago
      "Ha! This will confuse the cr*p out of the buggers who try to figure how we did it."
conradfr 12y ago
I thought it was making sense when a friend showed it to me, but I'm a neophyte as well and I was also enthusiast before that with the "internal ramp" theory.
david927 12y ago
The composition is both limestone and also red granite, which are both cut the same way. I'm also not an expert, but the idea of somehow pouring and curing granite doesn't seem to make much sense.

sopooneo 12y ago

I have heard this theory before, and I understand it is made by reputable sources. But it's always baffled me. I would have thought even a freshman geology major could tell the difference between a man-made stone and one cut out of natural earth. But then, I don't know any geology.

anigbrowl 12y ago

They were obviously done with a 3d printer, there's clear evidence of stepping. I'll show myself out.

Cthulhu_ 12y ago
With 3D printers growing to the size where they can build houses from concrete (right now), I can see our spacefaring offspring in a few hundred years flying to remote planets and 3D printing pyramids.
- lportion 12y ago
  Are they going to decorate the innards of said pyramids with diagrams of themselves hauling stuff with sledges, water and ropes too?
  - Thimothy 12y ago
    "Ha! This will confuse the cr*p out of the buggers who try to figure how we did it."

conradfr 12y ago

I thought it was making sense when a friend showed it to me, but I'm a neophyte as well and I was also enthusiast before that with the "internal ramp" theory.

david927 12y ago

The composition is both limestone and also red granite, which are both cut the same way. I'm also not an expert, but the idea of somehow pouring and curing granite doesn't seem to make much sense.