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- Path: sparky!uunet!think.com!rpi!bu.edu!acs.bu.edu!hjfeld
- From: hjfeld@acs.bu.edu (harold feld)
- Newsgroups: rec.org.sca
- Subject: Re: Period Calendar Wanted
- Message-ID: <105941@bu.edu>
- Date: 3 Jan 93 08:09:10 GMT
- References: <725767220.AA00000@blkcat.UUCP> <1992Dec31.034211.21470@wam.umd.edu> <1992Dec31.135844.15035@panix.com>
- Sender: news@bu.edu
- Organization: Boston University, Boston, MA, USA
- Lines: 58
-
-
- Woe and travail on this Tenth of Tevet. May the Lord hear our cries
- and redeem us from exile!
-
- In article <1992Dec31.135844.15035@panix.com> ilaine@panix.com (Liz Stokes) writes:
- >
- >jww@evolving.com (John W. Woolley) writes:
- >> Remember that, no matter the time of year, there are twelve equal hours
- >> of day and twelve of night; so that in winter day hours are much shorter
- >> than night hours.
- >>
- >>3. Does anyone out there know of any self-adjusting timepieces that would take
- >>this stretching and shrinking of hours into account?
- >
- > Certainly milord - the sundial. I believe the Romans measured time by
- >12 daylight hours and 3 night watches.
- > -Ilaine
- >--
- It is said that King David (the memory of the righteous is as a blessing)
- had a magical harp that did wake him and keep the hours in the darkness.
-
- However, for such as us, this is not possible. since we Jews keep
- the division of the day into twelve equal parts and the division of the\
- night into twelve equal parts (the parts of the night however are
- usually described as four watches of equal length rather than as
- twelve hours), we must somehow keep track of the passage of time when there
- is no sun. Several means may thus be employed.
-
- First, recall that the motions of the Sun and the Moon around the
- Earth can be predicted by those who have studied the science of
- Astronomy, and thus the length of the day or night can be known.
- This knowledge was known even to the philosphers and sages of the
- anceint Greeks. Thus, one need only keep track of the passing
- of the minutes, the seconds, or the chalakim (I do not know how
- to translate this word, but it is a smaller unit used for the determination
- of the rising of the new moon under the calender of Hillel II (on him
- be peace). Perhaps my brother Yonaton, known in this forum as Deudeon,
- who has studied more mathematics than I, may know.
-
- Since the length of time may be known in advance, one can
- construct candles that will burn for such lengths of time.
- Further, I am told that one of the Rabbis possessed a clock that
- used water, but I know not how this was done.
- Perhaps it is Aggadic.
-
- If one is versed in the stars and constilations, and the motions of the
- moon, one can tell from observation the time of night.
-
- Alas, I have made little study of this, being an ignorant man
- with little time to study. May the Lord forgive me for neglecting
- the sciences which, as our master Moses ben Maimon (may he live to
- one hundred and twenty) instructs us, is a worthy thing, teaching
- both discipline in thought and the glory of the Creator.
-
- In Service on this 10th day of Tevet,
- Yaakov HaMizrachi
-
-
-