Pierre Crozat PhD

A TECHNOLOGICAL CONTINUUM

THE ART OF BUILDING AND THE
GREAT PYRAMIDS OF EGYPT

First part :
PRELIMINARY STUDIES 1990-97

  1. C.V. Architect-Urbanist EPFL
  2. 1996 - Pyramids Constructive System
  3. Pyramid increase: simulation
  4. 1997 - General presentation :
    1. Resume
    2. Introduction
    3. Scientifical, Technical and Operative Research
    4. The process of Pyramidal Growth
    5. Hérodotus was right
    6. Origin of matérials
    7. Technical continuum
    8. Conclusion

Second part:
DOCTORAL STUDIES 1998-2002

  1. PhD Thesis in Civil Engineering
  2. 2002 - Publication of "Le Génie des Pyramides"
  3. 2002 - From geology to construction
  4. 2002 - Pyramids and Mathematics

Third part:
POSTDOCTORAL STUDIES 2003-2017

  1. Engineering of pyramids
  2. Construction model
  3. Construction phases infographics
  4. 2005 - World Year of Physics
  5. 2006 - Fun and educational learning
  6. Journal of the Palais de la «Découverte»
  7. Paleo-topo-stratigraphic simulation of the Giza plateau

Fourth part:
FINALIZATION STUDIES 2018-2019

  1. Geological hypothesis
  2. Open letter to Hany HELAL
  3. Circular letter to my peers
  4. Successive panels of exhibition
  5. Pedagogical experiences
  6. Curriculum Vitae Researcher

Part five:
PUBLICATION & ANIMATED INFOGRAPHIC MODELING 2019 - in progress

  1. 2019 - Communique
  2. Of the logistics algorithmic ?
  3. Cheops: computer graphic construction

EVENTS PROJECTS

  1. 2006-2008 - Paris, duo de ses pyramides
  2. 2010 - Of Engineering Works & Men
  3. 2013 - Marseille, pyramid of knowledge

Go to the second site of
Pierre CROZAT Architect - Urbanist

TECHNICAL CONTINUUM

Actually, the whole of edifices made of earth or stone, since the Neolithic era: cairn, tumulus, dolmen, fortified enclosure, ziggurat [21], mastabah, step-pyramid and sleek pyramid, tholos, torre, Mycenaean grave, stupa, etc . . . edifices necessitating important, even enormous, quantities of materials, and achieved with the most rudimentary technical means of extraction and lifting, even without scaffoldings, all pertain to the same method known as "accretion-raising" used when accomplishing the first rural picking of stones out of agricultural exploitations and fields, and maybe coming from this need of “gathering up the heaps” experienced by the first group of farmers-cattle breeders.

Cairn in Barnenez (religious engineering) threshing area in Cipierre (rural engineering)

As a matter of fact, this method is, from the start and by essence, anthropometrical, picking stones out of a pasture or a farming field generates a pile of stones which must be raised by hand, in order to take as little space as possible, the roughest stones are put inside facings made out of the nicest stones [22].

A man's height is the anthropometrical limit. Then if you want to increase the heap, you have to add a peripheral facing on which to climb in order to continue to raise the edifice until one more man's height is reached , and so on and so forth. This method is called by us “accretion-raising” because only peripheral accretion allows to raise the heap; it explains A.Choisy's schema of construction by degree and imposes the concentric facings and the ascending degrees on these edifices.

This method was applied to the Egyptian step-pyramids [23] and actually, the first principle “exploit all around and abound in the centre” and the second one "widening to raise" seems to have an universal value.

“Accretion-raising” system applied to any step-pyramid (like Saqqara)

A computer simulation of this method was done and can be applied to every step- pyramids. It allows to surmise that, whether they are small or large, solar temple or pyramid, they represent more or less advanced stages of a similar project. On the contrary, the Pyramid of Houni-Snefru in Meidoum and the Sekhem-khet both qualified as “unachieved” are nothing but in two more or less advanced stages of their destroying (schema).

And up to the way of thinking, the cosmogonic, theogonic and anthropogonic perception and representation of the world, as also the numerical notation of the growing arithmetic according to G.Ifrah [24], pertain to the same generic concept of increment through successive layers fitting into each, used in the building of the pyramids, to such an extend that it is quasi obvious that we face here the only way of thinking, conceiving and representing.

It is even possible to suggest, considering the conjunction of the realisations, that construction could have participated, or else generated the structuring of writing and of arithmetic.