Posted by alexandra_k on October 31, 2018, at 18:43:31
In reply to Re: coal and god » alexandra_k, posted by beckett2 on October 29, 2018, at 15:11:17
> I knew some masons. Hard work! Have to be excellent too or it goes kaput. What amazes me are the fences that last centuries w/o mortar. Not here in California, but places on the east coast like Vermont. I was told the stones were pulled out of the fields so they could be tilled.
Yeah, very skilled work.
I didn't realise that most of the stone buildings in these parts actually are veneers (of reasonably sized slabs, in some cases) with a rubble core. That's how come much of Christchurch crumbled / turned to rubble in the earthquake. Once the outer stone shell cracks open the inner part sort of collapses / spills out. I found some engineering pictures.
I also found some site where apprentices in the UK were able to spend some time helping maintain some of the old church buildings (that nobody was really paying for the upkeep of). There was something about how you don't drill into those old stone buildinngs (becuase they are built from stone blocks, I guess) whereas the ones we have in these parts can be drilled into and some sort of concrete or mortar or whatever can be injected into the rubble core to help strengthen the building to help it become earthquake proof.
Yeah... Before cranes and the like stuff would need to have been hauled around.
It is phenomenal how ancient civilisations managed to organise people to construct pyramids and the like...
We can't even build a non-leaky house in these parts, nowdays.
'Progress'...
Mmm hmmm.
poster:alexandra_k
thread:1101042
URL: http://www.dr-bob.org/babble/poli/20180816/msgs/1101737.html