At 05:58 15 August 2013, GC wrote:

The reasons for differences in commercial aviation are mainly because
the US effectively invented it and is still the largest single part of
it but Europe (including its UK satellite) sulkily refuses to recognise
this historical fact.

I think perhaps that George Cayley's coachman, both Brits, has been
accredited with the first manned heavier than air flight in 1853.

The Graf Zeppelin performed the first commercial transatlantic flight in
1929 - German?

The first commercial Jet was the de Havilland Comet

The confusion between Hg and HPa is a safety issue not a cultural one. It
should be resolved.

Beer in the UK is sold in metric measures except in pubs. This is a
cultural thing (see later in my post about diverse cultures) not a safety
issue.

I'll leave out the typically smug UK politics but just mention that only
the UK could see the way English words are spelt by themselves as
"World". Guess what spellings are used in teaching English in China?

Surely you know where the English language comes from? Oh dear.

GC, reread my post. I tried to make my points without insulting anyone. Now
look at yours. Enough said about diplomacy.

Jim