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- Xref: sparky sci.lang:7949 soc.culture.esperanto:2066
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- From: cam@castle.ed.ac.uk (Chris Malcolm)
- Newsgroups: sci.lang,soc.culture.esperanto
- Subject: Re: [week] Re: Weekdays in other languages (was: ... Latin?)
- Message-ID: <27909@castle.ed.ac.uk>
- Date: 10 Nov 92 10:54:52 GMT
- References: <aardvark-021192130033@146.154.24.95> <1992Nov3.195527.24256@efi.com> <1992Nov04.191634.18686@microsoft.com>
- Organization: Edinburgh University
- Lines: 49
-
- In article <1992Nov04.191634.18686@microsoft.com> siobhan@microsoft.com (Siobhan Harper) writes:
- >In article <1992Nov3.195527.24256@efi.com> dchung@efi.com (Daniel Chung) writes:
-
- >> Is it not wonderful that the whole world use the same schedule of
- >>"weeks"?
-
- >Consider the Cambodian week: (in a _very_ rough transliteration)
-
- >tngay can (day of the moon)
- >tngay angkia (day of Mars)
- >tngay put (day of Mercury)
- >tngay prahoeh (day of Jupiter)
- >tngay sok (day of Venus)
- >tngay sau (day of Saturn)
- >tngay aathit (day of the Sun)
-
- >These names aren't a result of the French colonization; they predate them
- >by quite a while. Yet they are the same planets, in the same order, as the
- >Western week. The link is the Babylonian and Hindu astronomers; the names
- >went east from India and west from Babylonia, along with the concept of a
- >seven-day "week".
-
- This particular ordering is interesting becuase it is an ancient
- geometric mnemonic. There are seven days in the week, and there are
- three different ways of drawing a septagon. If we regard the weekdays
- above as defining the order of the vertices round the septagon, then
- the seven-pointed start formed by joining each vertex to its
- next-but-one neighbour given us the visible planets in the Chaldean
- order, i.e., the order of their mean apparent speed round the ecliptic
- (moon, mercury, venus, sun, mars, jupiter, saturn).
-
- If we then draw the seven-pointed star formed by joining each vertex
- to its next-but-two-neighbour, then we have the order of atomic
- weights of the alchemical metals associated with the planets (iron,
- copper, silver, tin, gold, mercury, lead).
-
- If you want the same starting point for all three septagons you need
- to start with Saturday and go backwards.
-
- So, once you knew this septagon trick, you could use the weekdays to
- remember some useful astrological and alchemical lore. Very useful in
- the days when books were as scarce as the ability to read them.
-
- [Astronomical note: I have used "planet" here in its old inclusive
- sense.]
- --
- Chris Malcolm cam@uk.ac.ed.aifh +44 (0)31 650 3085
- Department of Artificial Intelligence, Edinburgh University
- 5 Forrest Hill, Edinburgh, EH1 2QL, UK DoD #205
-