It's not really sitting though is it...
Maco1969
It's still just two layers of a manufactured felt or bitumen, the quality of tiling, flashing and lead in the UK is beyond compare. There's flashing on a church near me that's nearly a thousand years old.
I would imagine that at some point we went from highways agency signage that was made to a standard to outsourcing to the cheapest bidder. There is also a possibility that signs can't be too rigid so they don't cut vehicles in half?
Mass produced spirits became a problem throughout the western world around the same time, cheap whisky in Scotland and Ireland, gin in England and vodka in Russia etc. The industrialisation of production led to slum housing and cheap, strong alcohol, not a good combination.
It's in the UK, there will be a layer of roofing felt underneath the slate that prevents pests getting in. Roofing felt is the same stuff that shingles are made from in the US but comes in a roll. So in the UK we have basically the roof you'd have in the US and then another slate roof on top, it rains a lot here, we probably have some of the best roofing in the world.
Don't worry about the quality of the paint, I grew up using cheap Chinese water paints and it was OK.
We are kind of unique in our ability to sit on chairs, the majority of animals throughout evolutionary history have some form of tail. Imagine we meet aliens and every species is incapable of sitting on a chair, it'd make start trek look a little foolish.
Ask either do you have a nose, the one that always tells the truth has to say yes, the one that always lies has to say no.
Not if they were both tidally locked to one another.
That's alright, fusion is only ten years away!
I probably got a pretty decent dose of lead due to licking my brushes in the eighties, little sets of paints in lead tubes.