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Originally posted by mcx1942
I just do not see why it is not possible the lathe was actually used in Egypt at 2,800. Petrie thought so as well. It makes sense and it would explain these, because quite frankly some of these are too perfect to be done by hand. I understand the generations of craftsmanship being passed down but come on, why is it not possible that the lathe was actually being used at 2,800.
Because that disrupts the paradigm.
Originally posted by mcx1942
I am not saying that the AEs did not posses the technology. I am asking why mainstream archaeology says they did not. The workmanship needed would require materials we are told they did not use or have.
I have proven that the Ancient Egyptians did not use the tools needed to make the vases I presented, at the time they are from. History tells us that. So we must have the timeline wrong and the Ancient Egyptians had the Lathe, Wheel and or Pottery Wheel before mainstream history has told us they 'acquired' them.
Originally posted by Harte
Because these things can be made without a lathe or a wheel, and because no evidence for the lathe or the wheel exists for the earlier time periods (as you pointed out,) they cannot postulate the use of either.
This one piece is so flawlessly turned that the entire bowl (about 9" in diameter, fully hollowed out including an undercut of the 3in opening in the top) balances perfectly (the top rests horizontally when the bowl is placed on a glass shelf) on a round tipped bottom no bigger than the size and shape of the tip of a hen's egg.
This requires that the entire bowl have a symmetrical wall thickness without any substantial error! (With a base area so tiny - less than .15 " sq - any asymmetry in a material as dense as granite would produce a lean in the balance of the finished piece.)
Originally posted by mcx1942
Originally posted by Harte
Because these things can be made without a lathe or a wheel, and because no evidence for the lathe or the wheel exists for the earlier time periods (as you pointed out,) they cannot postulate the use of either.
Please show me the work done by modern man showing how the Petrie 2,800BC vases were made, without the lathe or wheel.
Originally posted by mcx1942
That leaves only the pottery wheel and out of all the information that has been provided I have not seen how the 2,800 vases were thought to be made.
Originally posted by mcx1942
I see how the newer vases are thought to be made with the tools needed(which is backed up by evidence left by the Egyptians). I find it hard to believe this vase below was made by hand with tools made from copper. Maybe I missed the link explaining how these vases(Petrie's 2,800BC) were made. I am not trying to be a jerk, I would just like a better explanation to these vases discussed in the thread. Not all vases ever made, just these Petrie 2,800BC vases.
Originally posted by mcx1942
Beautiful Granite Vase dated to be from 2,800 BC or earlier.
This one piece is so flawlessly turned that the entire bowl (about 9" in diameter, fully hollowed out including an undercut of the 3in opening in the top) balances perfectly (the top rests horizontally when the bowl is placed on a glass shelf) on a round tipped bottom no bigger than the size and shape of the tip of a hen's egg.
This requires that the entire bowl have a symmetrical wall thickness without any substantial error! (With a base area so tiny - less than .15 " sq - any asymmetry in a material as dense as granite would produce a lean in the balance of the finished piece.)
Originally posted by mcx1942
I have never once stated your ideas and theories are incorrect. I have always stated they are theories. I just have not seen sufficient evidence to explain the 2,800BC vases. The newer vases, yes, plenty of evidence because it fits the time frame of Egyptian Archaeology.
Obviously, theories are all we have until we come up with time travel, right?
Originally posted by mcx1942
reply to post by Harte
Thank you. That was very well said. Best so far in the entire thread.
Thank you for your contributions to this thread, I do appreciate it.
Originally posted by FlyInTheOintment
reply to post by Harte
Your latest reply (above my criticism of your posting habits as regards the Giza argument) demonstrates that you are a very self-satisfied individual, who sees himself as better than others, and more deserving of positive attention than others (due to your self-perceived 'sacrificial quest' to enlighten lesser individuals...)
The experimental vase was carved to shape from a rough block of soft limestone with large and small copper adzes, flat and crosscut copper chisels, a mallet, flint chisels, punches and scrapers and sandstone rubbers. No set measurements were adhered to, the shape of the vase being achieved by acting upon intuitive judgements.
The shoulders of a barrel-shaped vase are wider than its flat bottom; it made sense to align the narrower base surface directly under the centre of the projected top surface, and ensure parallelism between them. The top and the bottom surfaces were finished before any further shaping took place.
The initial shaping of the curved sides now commenced (Figure 5.23). Copper adzes were utilized to pare away the limestone from the top to the bottom. However, a hand-held, adze-shaped flint blade could also have been employed for this operation: if this vessel had been manufactured from granite or porphyry, flint chisels and punches would have been used to chip away the stone. During this shaping, constant checking of the relationship between the top and the bottom surfaces to the curved sides became necessary.
The second phase of the barrel form could now begin. Using small copper chisels, a mallet, and flint scrapers of different shapes and sizes, allowed the shoulders and neck gradually to be carved into shape (Figure 5.24). After checking the final form of the vase, sandstone rubbers of graded textures were used to smooth the whole of its surface. The final smoothing, however, was deferred until the completion of the hollowing. The vase measured 10 cm in diameter, 10.7 cm in height, with a neck diameter and height of 7.5 cm and 1 cm respectively.
First, the drill-tube was correctly positioned, so that, so that a mark could be made around its circumference, which allowed a groove to be chipped out with a flint chisel and mallet, just inside the circular mark.
In fact, two grooves were so prepared, one within the other, in order that two different diameter tubes could be used for the drilling.
The experimental vase was now drilled to a depth of 3.5 cm with the 4 cm- and the 2.2 cm-diameter tubular drills (Figures 5.29, 5.30). The cores were carefully removed with a mallet and a copper chisel. Pieces of the solid core were removed first, followed by the tubular core (Figures 5.31, 5.32). The soft mallet blows were directed toward the centre of the vase.
The vase now required undercutting at the shoulders, and then hollowing to follow its external shape. There are several ways that this could have been achieved in ancient times. First, tubular drill the vase completely to the bottom and then bore out the remainder of the stone with figure-of-eight-shaped stone borers.
Second, tubular drill the vase to a point just below the shoulder and introduce a first figure-of-eight-shaped borer to force a sideways cut. This first borer would be slightly longer than the diameter of the tubular drill; the use of flint scrapers to scrape a slight groove in the wall of the hole would help in the introduction of this first figure-of-eight borer. Each successively longer figure-of-eight borer would further increase the undercutting to a point where downwards penetration became necessary.
Third, tubular drill the vase to a point just below the shoulders, then use only successively larger figure-of-eight borers until the bottom is reached. This method is not supported by the striations seen on extant figure-of-eight borers, which are under the borers’ extremities, not under their central parts. This indicates that such borers were always used to widen an existing hole. The second alternative was chosen for this particular vase, although methods need to be reviewed when taking into account other vessels’ shapes and stones.
A first figure-of-eight borer, slightly longer than the hole diameter of 4 cm, was slipped lengthways, that is, with its long axis vertical, into the hole, and brought to a nearly horizontal position (Figures 5.35, 5.36). One end of the borer was located in the scraped groove.
The limestone vase was now filled with dry sand abrasive up to the level of the borer, and a forked shaft engaged with it. Gradual twist and reverse twist actions, together with a new grip every few twists, allowed the borer to settle into a fully horizontal position (Figure 5.37). The scraped groove was further cut sideways and downwards by these actions. The dry sand abrasive slowly eroded the vase interior, and also the borer. Occasionally, the sand powder was poured out of the vase, and fresh supplies admitted.
Tubular drilling continued to the bottom of the test vase, whereupon the cores were removed. Figure-of-eight borers finished the hollowing of the vase. A series of raised ridges, or cusps, were created as each successive borer ground away a groove into the vase’s wall. These were smoothed away by long, hand-held sandstone rubbers, the bottom being smoothed with a rounded stone borer, in use with sand abrasive.
It is likely that an ancient stone vessel worker gathered many stone borers of different shapes and sizes over a lifetime’s work. Just as a modern blacksmith keeps any special tool for possible future use, many borers in ancient tool collections would have been kept for such a purpose.
The maximum internal diameter of the vase measured 8 cm, its minimum diameter being 5.5 cm, with a mouth diameter of 4.5 cm and a depth of 10 cm (Figures 5.38, 5.39). The total time for manufacture was 221⁄2 hours.
The earliest historical evidence for the TRTD ( twist / reverse twist drilling) comes from the Third Dynasty. The latest dated scene showing the tool is from the Twenty-sixth Dynasty, the tomb of Aba at Thebes, but it is reasonable to assume that the TRTD was in use to the end of Dynastic history. The rapid increase of stone vessel production in the Nagada II period, and the evidence of the craftworkers’ ability to make tubes of copper, are good grounds to suggest that this increase in stone vessel production was a direct result of joining the copper tube to the TRTD.
Originally posted by BanksyBoy
Shame he didn't attempt it in granite.
Originally posted by Harte
Originally posted by BanksyBoy
Shame he didn't attempt it in granite.
He did, sort of.
He conducted a series of experiments using copper tube drills on granite and hence knows the ratio. This was when he was also experimenting with sawing granite with copper slabbing saws with dry and wet sand abrasives.
IIRC, you can saw about 15 times the depth in limestone as you can in Aswan rose granite in equal amounts of time, according to Stocks' work.
Harte