Showing posts with label calendars. Show all posts
Showing posts with label calendars. Show all posts

Sunday, 16 October 2011

Observation and Calculation: Laziness and the passage of time




 There are certain feasts and festivals that are considered "movable" in Christianity.  Easter is the most well known by the general public outside the churches.  But Easter is only movable because of laziness and an insistence on defining lunar feasts based a solar calendar.  As we talked about around that time earlier this year, Easter started out as the Sunday after Passover.  Passover is fixed, but obviously to the Hebrew calendar, not the Julian or Gregorian.  Passover is *always* the week of the 15th through 22nd of Nissan, which is sundown on the third Friday of Nissan until sundown of the next Friday.  So Easter was always 24th of Nissan.  But non-Jewish Christians didn't observe the moon, so they had to ask a Jew when it would occur, and, as relations got more and more strained between the two religions, the Christians wanted to know it themselves.  So they figured out a calculation, so they wouldn't have to observe.  And they did it based on a solar date, the equinox, and even that was set on the calendar by then, not observed.

Both the Hebrew and the Islamic calendar are based on observation and lunar cycles, not calculation and solar cycles.  The Jewish months aren't set, nor are the Islamic.  The Romans said, this month is this long and this month is this long.  The lengths are arbritary, not based on anything in nature.  Hence Julius Caesar was able to steal a day from February and put it in the month he renamed after himself, and Augustus did likewise.  But the Jewish months are based on observation and not arbitrary.  When the moon disappears from the final crescent into the dark of the moon, the new month starts.  And the Islamic, when the moon reappears after the new moon, in the first crescent.  But this varies.  First of all, because the moon isn't tied to the solar days.  Some lunar months are 29 days and some 30 days, or some people say 28 or 31, it's hard since the new moon doesn't last only one day, just as the Solstice is hard because there are three days real close.  So the length of the months are different from each other and based on observation, not the same, and not arbitrary.  The length of each month are pretty close to the same each year, day wise, but this isn't guarantied.  Even if it drifts, the Hebrew and Islamic calendar will still be consistant, because the exact length of each month doesn't matter and won't mess up other calculations.


That's the thing, we're lazy, so we prefer calculation to observation.  That's why the standing stones were more accurate.  As I said, nature isn't orderly and consistent.  We like to make laws and rules to define nature, to show its order and show it as static, but they always fall short, because nature is chaotic and dynamic, always changing.  Just look at the length of a year.  We have a nice calculation of 365.2425 days, but this is an average.  Each year is different in length.  It's pretty obvious it would vary, if you think about gravity.  When Jupiter or Mars are closer, earth is pulled out further, and when Venus or Mercury are closer, it's pulled closer to the sun.  These four planets aren't on a cycle relating at all to any of ours.  Depending on the timing of this, if the earth stays out further more of the year, the year is longer, but if it spends more time closer, the year is shorter.  The same thing happens with the lunar cycles, hence to the tides, and so on.

And even the "Law" of Gravity doesn't give the whole picture.  Even Newton saw that Mercury osculated in a way the Law couldn't account for, be he couldn't find a solution and no one else could, so they just kind of ignored it until Einstein looked at it and started from scratch and came up with the Specific Theory of Relativity, which he later expanded.  The point is that *everything* effects everything else, so the universe and nature is far too complex to calculate.

So calculation will only give averages, not specifics.  To really know the cycles, it takes observation.  In Genesis, G-d says, "Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days and years; and let them be for lights in the firmament of the heaven to give light upon the earth."  They are signs.  A sign is meaningless if it isn't observed.  The seasons, the days, and the years, are seen watching these signs, not calculated with an easy formula.  If the earth took an extra day to make it around the sun, or the moon an extra day to make it around the earth, how many people would even notice?  And if we noticed, would it be when it happened, or afterwards when the calculations start failing?  Would we change the calendar, or just pretend it didn't happen?  And if we changed it, would we just change the calculation and hope it happened again the next year, or watch and wait and observe and see what happens?

Do we as a modern people notice the signs and omens around us every day?

FFF,
~Muninn's Kiss

Saturday, 15 October 2011

The True Meaning of Celebrations...



The issue with any calendar, the reason it will have issues, is because nature isn't exactly set patterns that can be predicted and set down in a mathematically defined calendar.  So we keep refining the calendar to try to better reflect nature, but never get there.  So we have many ancient calendars that were lunar based, 13 28 day months, so 364 days a year, and others that are solar based, but 12 30 day months, so 360 days, and some have an extra 5 days outside to get it closer.  Both of those  wander slowly over the decades.  So the Julian tried to fix this by having 365 days with a leap day every four years, but even that wandered by three days every four centuries, and got ahead, so the Gregorian tried to correct this by first resetting it to where it had wandered from, then taking out some leap days to avoid the wander.  And later we added a leap second, but it still doesn't exactly work.

Because the solar year is tied to the rotation around the sun, not the daily rotation of the earth.  The two aren't connected at all.  Just as the moon's monthly cycle isn't tied to either.  You can't define a solar year, a lunar month, or an earth day by each other.  So no calendar will ever work 100% the way intended.

All the calculator does is convert between the different calendars, not define exactly when the solstice or equinox or cross-quarter really occurs.


But the feast days were defined by the Julian calendar, not by the true dates of the event that earlier existed.  In the two examples you listed, more than likely, that was when the Solstice was thought to be at, because that was probably when the Solstice was when the Julian calendar was first created, so we kept that date, ie, December 25, even though we adjusted the calendar, so the Solstice lands on December 21 or 22 depending on the year, yet Christmas is three to four days off.  The Solstice hasn't moved, just the calendar day it lands on.

If we want to go by the calendar, we won't stay accurate to the astronomical event, and if we go by the astronomical event, we won't be consistent to the calendar.  But is it the calendar that truly matters?  And is it the astronomical event that really matters?

We say that the Autumn Equinox is the beginning of Autumn, the Winter Solstice is the beginning of Winter, the Spring Equinox is the beginning of Spring, and the Summer Solstice is the beginning of Summer.  But where is this true?  And when?

In Argos, there were two Horae, who represented Summer and Winter, but in Greece, there were three, basically bloom, growth, and harvest, Spring, Summer, and Autumn.  Later, the became four, from which our seasons come, before they became the hours, of which there were nine or ten, and later 12, which became our 24, 12 of night, 12 of day, at the Solstices.

In Wyoming, Winter begins some time between September and December, depending on the year, but always well before the Solstice, usually closer to the cross-quarter, Samhane or whatever name.  Spring usually doesn't come until May or June, so later than the Equinox, closer to the cross-quarter, Beltaine or whatever name.  Summer doesn't usually start until well into July, after the Summer Solstice, and Autumn starts early August to late September, depending on the year, usually well before the Equinox.  So the feasts, the Solstices, the equinoxes, the cross-quarters, Don't match too well.  And it varies from year to year.  Two years ago, Winter came mid September and snow fell and stayed until mid June, Spring was a month, then Summer lasted until late September.  Last year, Autumn went from late September until mid November, and Winter from then until a week after May Day.  But that was in the valley.  In the mountains, a half hour from town, all the roads were closed under twelve feet of snow until mid July this year.  And Autumn started around Labor Day, which was September 5 this year.  Snow came last Saturday, about a foot, but it's definitely still Autumn now.  It was back up to the 60s F the last two days.

So you can't match the seasons to a calendar, nor to astronomical events.

What are we actually celebrating at the Solstices?  The Equinoxes?  The Cross-Quarters?  The Feast Days?  The Saint Days?  Any other day?  That's what we really need to decide.  That's what will tell us when they should occur.

FFF,
~Muninn's Kiss

Faerie Nation Mag