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originally posted by: pauljs75
Other than typical stone working methods and such, it could be possible to pre-treat a hard rock surface with an acid. Get something like salicyclic acid (from plants) dissolved in an alcohol or sap such as pine tar, and prep the stone you're going to remove by coating it with the stuff. It should leach in after being left on for a day or so. Then just grind or pound the heck out of the partially acid-dissolved parts with rocks of the same hardness. Not making the rock "soft" as in being malleable like clay, but rather making the rock soft as in being able to remove a lot of material easier and without it shattering. A treated rock should be more crumbly like a softer sandstone if I'm thinking rignt in how it should work. Still would be a stone-work process though, and it would take some trial and error to know how long to leave the paste on to soften it to a certain depth.
If you have enough plain ol' aspirin, you could probably grind it to a powder and dissolve it in turpentine or denatured alcohol. (It also dissolves in water, but not as good.) It's also the same stuff in wart remover or skin exfoliant, so you don't want to get it on yourself either as it'll eventually make your skin peel - wear some gloves if trying to dissolve rocks with it.
originally posted by: Kandinsky
a reply to: zatara
It does make sense in an abstract way or a 'common sense' way.
But if we look at how absorbent limestone, basalt or granite are, it becomes less realistic.
Alkali liquids have been available for centuries and don't make hard rock malleable or easier to carve. Likewise, we see the attrition rates of acids on urban limestone and it doesn't make it any more malleable or workable than alkalis.
They might cause superficial erosion over decades, but they don't 'soften' rock.
originally posted by: Kandinsky
a reply to: Jarocal
Davidovits (sp?) iirc was the guy who promoted the idea of Ancient Egyptians using some method to breakdown limestone into a pourable cement mix. The idea was disproved and hasn't been (afaik) suggested for the Peruvian stonework.
Are you suggesting some similar process was used on the surface planes of ancient blockwork? If so, it would still require quarrying to create the blocks prior to them being dressed. That would just add further complexity to avoid the more probable explanation that stones were quarried and dressed by hard labour.
Variations of alkali/acid saturation of rock surfaces to enable easier carving and/or moulding would be in use today if it was that simple.
I'm no expert and just thinking out loud.
originally posted by: Jarocal
originally posted by: Kandinsky
a reply to: Jarocal
Davidovits (sp?) iirc was the guy who promoted the idea of Ancient Egyptians using some method to breakdown limestone into a pourable cement mix. The idea was disproved and hasn't been (afaik) suggested for the Peruvian stonework.
Are you suggesting some similar process was used on the surface planes of ancient blockwork? If so, it would still require quarrying to create the blocks prior to them being dressed. That would just add further complexity to avoid the more probable explanation that stones were quarried and dressed by hard labour.
Variations of alkali/acid saturation of rock surfaces to enable easier carving and/or moulding would be in use today if it was that simple.
I'm no expert and just thinking out loud.
No I do not asthink the stones were poured like concrete. I was saying that I find the idea ancient people may have used a compound to make the stone more workable less improbable. I have no issue with it not being in use today if the knowledge was lost over time. Using animal brains to tan hides was common a few hundred years ago but it is a skill slowly being learned again today after a long time of using industrial chemicals to do the same thing.
originally posted by: Hanslune
Questions for the 'ancient people had 'x' technology to work stone' believers:
Interesting to me is that all the ancient civilizations could work hard stone, Egypt, Sumer, Harappa, Han, etc and thousands of years later so could the people of the Americas. However based on the 'x' theory at some point they lost this ability.
Based on this premise at what point did the ancient civilizations lose this ability and when did they switch over to using iron tools? I mean they would have had to switch over so can you tell us when this happened and how it happened?
Be precise please.
Also how did the Spanish miss seeing this high technology when they took over those civilizations in the Americas, additionally why did the natives of those regions not use said technologies against the Spanish?
Additionally since the natives; the Aztecs and Maya didn't have Iron but were making granite statutes at the time the Spanish arrived - how were they doing that?
originally posted by: skalla
originally posted by: Jarocal
originally posted by: Kandinsky
a reply to: Jarocal
Davidovits (sp?) iirc was the guy who promoted the idea of Ancient Egyptians using some method to breakdown limestone into a pourable cement mix. The idea was disproved and hasn't been (afaik) suggested for the Peruvian stonework.
Are you suggesting some similar process was used on the surface planes of ancient blockwork? If so, it would still require quarrying to create the blocks prior to them being dressed. That would just add further complexity to avoid the more probable explanation that stones were quarried and dressed by hard labour.
Variations of alkali/acid saturation of rock surfaces to enable easier carving and/or moulding would be in use today if it was that simple.
I'm no expert and just thinking out loud.
No I do not asthink the stones were poured like concrete. I was saying that I find the idea ancient people may have used a compound to make the stone more workable less improbable. I have no issue with it not being in use today if the knowledge was lost over time. Using animal brains to tan hides was common a few hundred years ago but it is a skill slowly being learned again today after a long time of using industrial chemicals to do the same thing.
Animal brains, eggs, emusified fats, bark/tannins and so forth have been used worldwide for tanning since prehistoric times to the modern day, it's just that the process is industrialised with chemicals etc, in certain places - the old method was never lost and has been used continuously in rural areas and less developed/industrial parts of the world
originally posted by: Jarocal
Define " x technology". Do yyou mean antigravity machines and lasers or more mundane technologies like levers and fulcrums? I have no difficulty believing what would be considered simple technologies like flint knapping have been lost over titime and only recently been rediscovered. That just leads me to believe there are others out there For us to puzzle out again. That dies nnot mean I think the ancient cultures had a technology which magically floated large stone blocks from the quarry to the building site.