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The great pyramid has an octagonal base.

discovery.com/…/Eight-Faces-Great-Pyramid-Giza

Not like a full equitable octagon, but quarter is split into two sides via a small concavity.

I think the attached picture is the original one in RAF pilot took at dusk when he noticed that the shadow wasn’t uniform across the face of one side.

Image

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marduk@lemmy.sdf.org ⁨1⁩ ⁨month⁩ ago
I’m amazed there hasn’t been some kind of laser scan to determine this

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- Varyk@sh.itjust.works ⁨1⁩ ⁨month⁩ ago
  Egyptologista are insanely conservative and won’t allow any measurements of practically anything anymore.
  
  Every time you hear about a new radar scan it whatever, it took years to get through the bureaucracy.
  
  But the collected pictures street to be accurate at any rate.
  
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  - thegreenguy@sopuli.xyz ⁨1⁩ ⁨month⁩ ago
    Damn the sphinx has cavities, better brush it’s teeth /jk
    
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  - marduk@lemmy.sdf.org ⁨1⁩ ⁨month⁩ ago
    Bring on the space lasers
    
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  - Waveform@lemmy.world ⁨1⁩ ⁨month⁩ ago
    One could do some photogrammetry and then analyze the 3d mesh. It only requires taking multiple photos from different angles. Might even be able to get something going from online photos, provided you match the time of day for the entire set…
    
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