Ancient Egypt Tech

A clip from my recent visit on the @blurrycreatures podcast talking about the evidence for ancient tech used in ancient Egypt. Do you think this is proof of lost ancient technology?

#ancienttechnology #ancientegypt

[MurphyP]

If only the library of Alexandria didn't burn down

[birchcakes]

Nice, they literally missed the whole point of why that cut is interesting. All of their stonework was crazy accurate, that's normal. What that stone shows is that one of their cuts went off track for a little over a foot in length. If the stone was being cut slowly with copper tools like people have thought then the worker would've noticed way before the cut got that deep that it was going off track. However, if they had a tool that was cutting the stone very quickly then it would've been easy to accidentally be cutting off track for over a foot before you noticed you had fucked up. The interesting thing about that stone is that is seems to suggest that they had tools to cut the stone WAY quicker than we ever thought possible. Yet they never mentioned that and instead talk about its laser precision even though this is one of the examples of them fucking up their precision.

[thetruthispotenza]

There is cuts like this all around the world. This is the technology they had worldwide like 9 to 12 thousand years ago. Crazy to think what we haven't uncovered under the ocean

[cncdan]

I’m a machinist and I’d love to take my measuring equipment to see how precise they really were

[dancingfrogsxb]

So I've spent the day cuting up concrete with a hand held saw and listening to various stone cutting pod casts etc.
My saw has a perimeter of 0.3m and a speed of 6500rpm so a blade edge speed of 1950mpm
I heard mention of a saw cut showing a blade with diameter of 10m in Egypt this is 31.4m perimeter so to achieve a similar blade edge speed it would only need to rotate at 62rpm and it would cut lime stone super fast and make mince meat of granite too.
Just sharing my thoughts on how a big slow blade would cut like a modern one

[mcintosh]

What's even more amazing is there is no overcuts . A round saw blade can't cut 90 degree inside corners without over cutting.

[thomasb]

We've been manipulating stone since - the Stone Age. There's absolutely no mystery about any of this.

[stevep]

Inmate cuts thru steel bars by unwinding threads from his socks and coating them with cement dust. Inmates rip welded grill off air ducts using sheets and a wooden cribbage board. Wrap sheets around grill and their cell bars, twisting cribbage board creating leverage which breaks weld. WW2 prisoners build glider out of bed slats and paper mache. Twist rope and use bathtub as a counterweight to launch glider. How about you offer a couple million dollars to see if local craftsmen can figure out how to do it with hand tools only?

[jamesbitler]

I work with stone, this stuff amazes me. Some are so perfectly cut out it would be hard to do today. What's really amazing are the stone's that are rounded on the edges yet fit so tight. It's all pretty neat!!

[davidschmidt]

You don’t need those things, you just need a very hard substance, harder than granite (dolomite in the case of the Egyptians), and some basic stone masonry. They essentially beat the dolomite rocks on the sides to flatten the granite, cutting it required some basic stone masonry. Humans are resourceful and always have been even 6000 years ago

[LAR-hsqt]

I have a theory about the other side of the granite box. I believe the other side (once cut) was to serve as the lid to the box. There was a master cut that involved the lid and box joined in one single piece. Because the lid and box share identical dimensions being cut from a single piece; the lid would fit perfectly--when placed on top of the box. Now, something might have happened during the cutting process which caused the lid to break. Maybe the weight wasn't supported properly, or there was a tool failure; perhaps a earthquake. Whatever it was, resulted in the lid being broken.

[milkncheese]

You can cut stone with rope sand and water... using the rope as the saw blade and the sand and water is the cutting compound... hemp rope use to be very strong and long lasting... many times has this method been used to prove such systems work....

[r.rodriguez]

Can you imagine if some ancient Egyptians showed up in our day and just took a saw from a museum and said, "Bro let me show you how it's done. You're grabbing it from the wrong end."

[nusernamen]

Take it none of these guys have done hard manual labour? I've been in the plastering, brick laying and block laying scene for 12 years now and all I have to say is give me a few chisels, hammers, a hand drill (for the time) and my lifetime and I'll make you anything from anything. I truly feel as if everyone has forgotten what we are capable of when we work our asses off till we bleed, cry in anger and lose pieces of ourselves.

I've literally converted stone into benches, footings and features with the tools mentioned above. Do not allow anyone to tell you, that you are not capable or we as a species aren't capable. Cause me as 1 man will tell and show you otherwise. It ain't easy but it's something.... to me atleast. We are a marvelous and intriguing species.

[justinantonius]

If I had a dollar for every time someone did not understand how cutting materials work in ancient times someone could have spent a year cutting a block like that with sand and wood and water a diamond blade is only necessary if you want it to happen very fast and repetitively without changing the blade. So they definitely have the technology to do this back then without question they just didn't have the ability to do it lightning fast and repetitively like we do. For science project I drilled a hole through quarter inch steel plate with nothing but black beach sand frome here in hawaii and mineral oil

[ruelharris]

I bet it was polished smooth not cut smooth

[bretthess]

Unknown ancient technology.
The vases in the Cairo museum, for example, cannot be replicated. Paper-thin walls in super-hard granites and basalts. Many large pieces show signs of advanced cutting technology such as saws and tube drills, if not even lasers.
Please note the Old Kingdom works were finer than the New Kingdom. I think the machines doing this work were from a prior civilization, and they wore out or were destroyed over time.

[fsinjin]

In current technology, they would have needed a high-powered water jet. “Diamond-tipped” rock cutting heats up the stone too much and has become passé for the cost of replacing tips.

[scp]

We have evidence of the use of flat bottomed saws which were able to precisely cut granite by applying great pressure and putting sand between wood/copper to cause enough heat and friction to cut hard stone. the silica in the sand is harder than granite and with great effort eats away at it in a focused area,

[echoscope]

Don't ever jump to conclusions when it comes to the master craftsmans of antiquity.