Reply to: What was the first flat...

[threaded]

Hence my earlier question regarding the operations performed on the slate...

So "splitting" and "grinding" one is a manufacturing process and the other isn't?

[Churchill]

So, before we can determine a "manufactured flat surface" we need to define what "manufactured" means...

Hence my earlier question regarding the operations performed on the slate...

[threaded]

No. Its natural crystal structure is exposed, is all.

So, before we can determine a "manufactured flat surface" we need to define what "manufactured" means...

[realityhack]

No. Its natural crystal structure is exposed, is all.

And it's still not bloody flat either.

[Euro-commuter]

Is a diamond manufactured?

No. Its natural crystal structure is exposed, is all.

[threaded]

Is a slate manufactured?

Is a diamond manufactured?

[Euro-commuter]

Yes, just had to check it out: the buildings on Gozo are the oldest structures known, the buildings have slate tiles, the slates would constitute the oldest manufactured flat surfaces. (Unless someone has an older example)

HTH

Is a slate manufactured?

[BoredBloke]

"Lying in bed at 18:00 last night, drinking my third can of scrumpy jack, I had this thought"

My thought would have been along the lines of why am I in bed at 6 pm and why am I dinking this sh1t.

[Churchill]

Yes, just had to check it out: the buildings on Gozo are the oldest structures known, the buildings have slate tiles, the slates would constitute the oldest manufactured flat surfaces. (Unless someone has an older example)

HTH

Was the slate just split or did they process it in other ways? Grinding?

[threaded]

Yes, just had to check it out: the buildings on Gozo are the oldest structures known, the buildings have slate tiles, the slates would constitute the oldest manufactured flat surfaces. (Unless someone has an older example)

HTH

[wendigo100]

Depends what you mean by flat. No surface is truly flat.

Atoms are a bit bumpy.

[freakydancer]

Depends what you mean by flat. No surface is truly flat.

My mates wifes chest is.

[realityhack]

Depends what you mean by flat. No surface is truly flat.

[EternalOptimist]

In bed at 6pm with a can of scrumpy jack?

working away from home, based in Eastcote.

I am aiming for 5pm as some sort of record

[EternalOptimist]

Certainly before the Pyramids.

If the stones had the slightest imperfection then the weight of the stones above would've cracked them.

Ah now

I know how the Egyptians managed that. They flooded the area where the pyramids were to be, then drilled down through the water a set distance. Then they flattened the rock to the level of the drill holes