This well known history and demonstrates a natural progression in the development of the pyramids. They started with stepped pyramids and tried to build higher and bigger.
That's an assumption. It's not well known "history" it's what they teach in text books, along with the "fact" that the pyramids were tombs. This is the common answers, but there are many problems with these ideas.
We have a well demonstrated example in the historical development of the Gothic cathedrals of Europe
That's not the same thing at all, and the Gothic cathedrals of Europe ar enot one of the wonders of the world.
I think I've already shown that people can do those things using tools and methods available to Egyptians.
No, what you showed, including the Nova link about cutting with sand, is a method to do something similar. But they don't get the same results.
And the Egyptologists still say they used copper tools.
There is nothing that the Egyptians did that we couldn't do.
Where are the very large structures that were made by modern man then? I mean with really big stones like that. The Egyptians did some amazing things, but they didn't continue making large structures like the pyramids. If that was their level of technology, why not build a whole city like that?
You are making the statement based on your own personal opinion not fact. We just have no practical reason to make buildings out of 70 ton blocks of stone. Our modern approach is for cost, light weight, strength, and ease of construction.
But we can't even do it if we wanted to.
Gee did Dunn ever get the formula for the calculations from this guy? What are the assumptions? It sounds impressive but not very useful for scientific judgements. Is is a 8 hour work day or a 12 hour? 5 days a weeks or 7 days? You should see what the Chinese can do with unlimited manpower and a 24 hour building schedule.
It was with double shifts at the time that book was written. I suppose you can call up a quarry and get a quote.
A gianormous airport in Beijing built in 2 years. It's ultra modern and unbelievable in scale. Terminal 3 alone is larger than
London Heathrow Airport's 5 terminals combined with another 17% to spare. If you tell people to do this in the Western world they would say it is impossible.
It wasn't done by hand and with no machines, right? Or with huge stones.
That is because the giant diamond blade is about 1/4 inch. That has absolutely nothing to do with the fitting of stone on site. Quarries don't typically do finish cuts just raw cuts. The band or circular blades are made for bulk cutting. Yet another example of using one fact that is unrelated to support something else.
The point was that is the best tolerance they can offer, and the Egyptians didn't have diamond blades.
We don't built things with that much perfection. No absolutely flat surfaces or perfect angles. The real question is why did they need that?
And there is nothing amazing about a joint that you can't fit paper through. Countertop installers do this all day long. They use a common and simple technique called scribing.
Yeah, once again, with power tools. I can show you the counter tops in this apartment and you sure can fit paper in the seams. I'm a woodworker, so I know about that stuff.
Here is an excellent article that describes how Professor of Architecture Jean-Pierre Protzen demonstrates how the Incas, who had no wheel or modern tools, quarried, transported and precisely fitted large stones:
NOVA | Transcripts | Secrets of Lost Empires | Inca | PBS
It's always on a smaller scale... and that's the problem.
I'm sorry, but until someone builds that exact structure with these primitive tools, I wont believe it. They haven't done it yet, and even doing it on a small scale, they fail.
And for even larger cut stones, go to Baalbek. These are estimated at 2,000 tons:
OK lets do that with sand, shall we?
And that brings up an interesting point. Why did they use such large stones? What was the point? Obviously it wasn't hard to do 5000 years ago....