On 30/09/2015 8:28 PM, Martin Koppenhoefer wrote:
sent from a phone
Am 30.09.2015 um 12:03 schrieb Warin <61sundow...@gmail.com>:
Local conditions...
A 5 day week is also not 'typical', yet there are places that have 5 day weeks,
places with 2 seasons per year and other places with 5 seasons in a year.
And those would be regarded as 'typical' values for a week or seasons in a year.
What is 'typical' in one part of the globe does not mean all other parts of the
globe have the same condition
there's a huge difference between a week or a month and a year or a day, the
latter have an astronomical definition (and are indeed the same on all other
parts of the globe
I assume you are taking of a calendar that is used to define the year?
The calendar in common use (Gregorian) is not as good as one used in at least
one area of the globe ..
the Persian calendar is a much better match to the astronomical 'year'.
Then there is the Julian Day calendar .. no weeks, months nor years here ...
just a single (now large) number...
As for a day being the same on all parts of the globe?
The old definition of a day was from sunrise to sunset. Monasteries typically
ran this way, and most farmers still do.
Those are different durations if your latitude is different... and yes they
varied seasonally too..
). A season is a part of a year, regardless how many of them there are.
Well if you want to have lake Eyre 'qualify' for the tag 'intermittent'
then I could say it 'typically' gets water once per year ... when the
'Queensland rains' fall (assuming they do)
of course the water might only be 5 mm deep and only in the northern part of
the lake (the lowest part).
And then it might only be there for a week.
And then there are the years when the water does not get even that far. Bit dry
for those years.
But if you want to see Lake Eyre full .. 'typically' that is once every 10
years or so...
So to me a full cycle of Lake Eyre in all its 'seasons' would be 'typically' 10
years.
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