Donald rahn of rahn granite surface plate co dayton ohio told me that in drilling granite diamond drills rotating at 900 revolutions per minute penetrate at the rate of 1 inch in 5 minutes.
Christopher dunn measuring pink granite.
Foerster films as his colleague christopher dunn measures the interior of one of the boxes.
According to engineer and expert machinist christopher dunn author of lost technologies of ancient egypt.
These huge masses of granite once served as very large coffins sarcophagi larger than is necessary to contain the average human body.
Material aswan pink granite.
Material aswan pink granite.
Advanced machining in ancient egypt by christopher p.
View from the top of the abu rawash pyramid the compound curved granite stones photographing and measuring the stone chris dunn checks the surface of the stone while.
He presents a serious open minded and very strong hypothesis to support his power plant theory.
Technologists like christopher dunn debate whether the craftsmen who made the perfectly balanced round bottomed bowls of polished granite or long necked vases of paper thin schist may have had much more sophisticated.
Land of the pyramids and a vast collection of evidence that like a taciturn teenager is begging for understanding.
The unfinished obelisk offers compelling indirect evidence regarding the level of technology its creators had reached not so much by indicating clearly what methods were used but by the overpowering indications of what methods.
Contoured block of granite near valley temple.
Advanced engineering in the temples of the pharaohs.
Location south side outside the.
The pink granite of which the unfinished obelisk is composed has a mohs hardness that sits between the scale of 6 and 7 the maximum being diamond at 10 and thus is more or less the same hardness as dolerite making the latter.
Christopher dunn has been a mechanical engineer for more than 40 years.
For more information about christopher dunn and his amazing work on the great pyramid or to order his book visit his web site at.