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UFO / UAP

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So we know when the pyramids were built thanks to carbon dating. We know the machining process was possible with the tools at the time, although there is still some debate on exact versions, and that the workmanship is pretty good but no where near modern power tools.
And eye witness accounts.
 
I've done it least twice already.
I haven’t seen it.

But here’s pictures of the records
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IMG_1922.jpeg
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Absolutely astounding they survived, they can be read and translated.

No chance of an error is there ? Well, maybe…
 
You wrote 1cm error, they are your words, not ones from the penn museum.

Do you often lie to try and win ?

It’s a horrible trait. You’re very disingenuous
Fair point, how would you describe a hole that had been drilled with inconsistent bore diameter?
 
:unsure:

Another outright lie.

You’re on a roll.
If you drill a hole now we don't have a taper on them.

The article is quite interesting, the tool marks show the wear on the drill and the difficulty they seemed to have removing debris and of drill wear.

That they were able to replicate drilling into granite using copper tools is also worth stressing.


None of it supports an impossible to match core rate of course.
 
The drilling was done entirely from one end with a relatively slight taper. Over the 24 cm. length of the drill hole there was only 1 cm. or 4% narrowing, indicating very little wear and wobble of the drill. This shape suggested the use of a tubular drill and will be discussed later.

Fair point, how would you describe a hole that had been drilled with inconsistent bore diameter?
Please re-read the above, it’s clear your struggling to understand it.

That’s how a core drill, well drills.

No one mentions inconsistency
 
The article is quite interesting, the tool marks show the wear on the drill and the difficulty they seemed to have removing debris and of drill wear.
Funny it mentions very little drill wear ?

Removing core debris can still be hard work, I’ve got DDM3 core drill and it often gets stuck and we struggle to remove the debris.

Good knows how they struggled with a copper drill and some
String
 
It's less than the thickness of a wall, a cheap core drill would do the job easily nowadays. With no taper.
A cheap core drill would drill granite ?

That’s the best one ever lol!!!

Have you used a core drill?
 
It's less than the thickness of a wall, a cheap core drill would do the job easily nowadays. With no taper.
You'd probably knacker it as see the same sort of reduced cutting speed that they found in the example above.
 
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