The perpetual calendar
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From: Jonathan Morton on 19 Feb 2010 17:07 "Yusuf B Gursey" <ybg(a)theworld.com> wrote in message news:896542a4-e823-450a-8450-86d878949925(a)w31g2000yqk.googlegroups.com... >Easter is a moveable feast, meaning it is not fixed in relation to the >civil calendar. The First Council of Nicaea (325) established the date >of Easter as the first Sunday after the full moon (the Paschal Full >Moon) following the vernal equinox.[3] Ecclesiastically, the equinox >is reckoned to be on March 21 (regardless of the astronomically >correct date), and the "Full Moon" is not necessarily the >astronomically correct date. The date of Easter therefore varies >between March 22 and April 25. It does, but at present (certainly until 2199, at which point we move to a new table) it is not capable of falling on 22 March. Of course we had 23 March in 2008 and there's a 24 April coming up next year. Regards Jonathan
From: Brian M. Scott on 19 Feb 2010 17:09 On Fri, 19 Feb 2010 19:38:08 +0000, Ant�nio Marques <antonioprm(a)sapo.pt> wrote in <news:hlmpb4$c42$1(a)news.eternal-september.org> in sci.math,sci.physics,sci.astro,sci.lang,alt.usage.english: [...] > Chocolate bunnies and eggs, you can put them everywhere > you like, but that's not Easter. For me, growing up, that was exactly Easter. It was a minor holiday, along with Thanksgiving and Hallowe'en; the major holiday was Christmas. Brian
From: Cheryl on 19 Feb 2010 17:11 Andrew Usher wrote: > On Feb 19, 3:07 pm, Ant�nio Marques <antonio...(a)sapo.pt> wrote: > >>>> The reason I fix Christmas to a Sunday has been my observation that >>>> arranging a family Christmas is substantially more convenient when it >>>> falls on a weekend than in the middle of the week. Given that Christmas >>>> is the most important holiday in the year, should we not all get at >>>> least a 3-day weekend, which we have for lesser holidays? >>> Less than around 30% of the world population cares about Christmas or >>> Easter or think that "Christmas is the most important holiday in the >>> year". >> Well, but for those who don't it doesn't really matter one way or the other >> what day Christmas and Easter Sunday are, does it? So what relevance do they >> have for you to bring them along? Or was it just the desire to sound clever? > > Right, and I figure that my calendar would be no worse than the > present for those that don't. > > Indeed, I considered this problem purely as a logical one; as I've > stated, I don't consider myself Christian, I adopted the Church > calendar as a base only because it makes the problem more interesting. > > I didn't consider my calendar complete until I worked out my new leap > year rule (Rule #3) - it not only ensures that both Christmas and > Easter are within 7-day periods despite being a constant distance from > each other and having leap day in between, it simultaneously causes > there to be exactly 52 Sundays in every year if you take out Nov. 1 > which is All Saints' day; this immediately allows te to draw up a > permanent list of the Sundays in the year with their traditional > Christian designations, and then follow the perpetual calendar. > > And I moved the start of the week numbering to August from Nov. 1 so > that the academic year and the US football season would be on the > fixed schedule, and I think there can be no objection to that. The > holidays I consider are Christmas and Easter (and of course the Church > festivals fixed to them, but hardly anyone cares anymore), and US > Thanksgiving - but other civil holidays could easily be fixed to the > same if they are now observed on a Monday, say, or otherwise not fixed > to a particular date. > > Andrew Usher Which academic year are you considering? I can think of several variations - K-12 vs universities and colleges, to begin with, and there are even variations among the K-12 school years in different jurisdictions - and even within the same one, in places where some schools have a year-round schedule. I will confess to being totally indifferent to the US football schedule. In fact, I couldn't tell you what it is now, except for a vague impression that it occurs in the fall, or possibly winter. -- Cheryl
From: Androcles on 19 Feb 2010 17:17 "Cheryl" <cperkins(a)mun.ca> wrote in message news:7u8gk9FirvU1(a)mid.individual.net... > Andrew Usher wrote: >> On Feb 19, 3:07 pm, Ant�nio Marques <antonio...(a)sapo.pt> wrote: >> >>>>> The reason I fix Christmas to a Sunday has been my observation that >>>>> arranging a family Christmas is substantially more convenient when it >>>>> falls on a weekend than in the middle of the week. Given that >>>>> Christmas >>>>> is the most important holiday in the year, should we not all get at >>>>> least a 3-day weekend, which we have for lesser holidays? >>>> Less than around 30% of the world population cares about Christmas or >>>> Easter or think that "Christmas is the most important holiday in the >>>> year". >>> Well, but for those who don't it doesn't really matter one way or the >>> other >>> what day Christmas and Easter Sunday are, does it? So what relevance do >>> they >>> have for you to bring them along? Or was it just the desire to sound >>> clever? >> >> Right, and I figure that my calendar would be no worse than the >> present for those that don't. >> >> Indeed, I considered this problem purely as a logical one; as I've >> stated, I don't consider myself Christian, I adopted the Church >> calendar as a base only because it makes the problem more interesting. >> >> I didn't consider my calendar complete until I worked out my new leap >> year rule (Rule #3) - it not only ensures that both Christmas and >> Easter are within 7-day periods despite being a constant distance from >> each other and having leap day in between, it simultaneously causes >> there to be exactly 52 Sundays in every year if you take out Nov. 1 >> which is All Saints' day; this immediately allows te to draw up a >> permanent list of the Sundays in the year with their traditional >> Christian designations, and then follow the perpetual calendar. >> >> And I moved the start of the week numbering to August from Nov. 1 so >> that the academic year and the US football season would be on the >> fixed schedule, and I think there can be no objection to that. The >> holidays I consider are Christmas and Easter (and of course the Church >> festivals fixed to them, but hardly anyone cares anymore), and US >> Thanksgiving - but other civil holidays could easily be fixed to the >> same if they are now observed on a Monday, say, or otherwise not fixed >> to a particular date. >> >> Andrew Usher > > Which academic year are you considering? I can think of several > variations - K-12 vs universities and colleges, to begin with, and there > are even variations among the K-12 school years in different > jurisdictions - and even within the same one, in places where some schools > have a year-round schedule. > > I will confess to being totally indifferent to the US football schedule. > In fact, I couldn't tell you what it is now, except for a vague impression > that it occurs in the fall, or possibly winter. > > -- > Cheryl The USA doesn't have a football schedule. The rest of the world plays football, the USA calls that soccer and then plays it's own version of parochial handball.
From: jimp on 19 Feb 2010 17:56
In sci.physics António Marques <antonioprm(a)sapo.pt> wrote: > jimp(a)specsol.spam.sux.com wrote (19-02-2010 19:21): >> In sci.physics Andrew Usher<k_over_hbarc(a)yahoo.com> wrote: >>> On Feb 19, 11:52 am, Halmyre<flashgordonreced...(a)yahoo.com> wrote: >>> >>>>> But, the whole point of Easter is that it has a full moon! You >>>>> might as well scrap the whole thing otherwise. Or are you >>>>> suggesting that we only take holidays at Easter every four years or >>>>> so, when your “settled” date just happens to correspond with the >>>>> right lunar phase? >>>> >>>> We don't have Christmas only when there's a bright star in the east. >>>> >>>> It's like saying "I was born on a Wednesday, so I'll only celebrate >>>> my birthday when it falls on a Wednesday". >>> >>> The reason I fix Christmas to a Sunday has been my observation that >>> arranging a family Christmas is substantially more convenient when it >>> falls on a weekend than in the middle of the week. Given that Christmas >>> is the most important holiday in the year, should we not all get at >>> least a 3-day weekend, which we have for lesser holidays? >> >> Less than around 30% of the world population cares about Christmas or >> Easter or think that "Christmas is the most important holiday in the >> year". > > Well, but for those who don't it doesn't really matter one way or the other > what day Christmas and Easter Sunday are, does it? So what relevance do they > have for you to bring them along? Or was it just the desire to sound clever? That a calendar serves a purpose beyond keeping track of regional, ethnic, or religious "celebrations" of one small group. And trying to come up with a new calendar fixating on Christmas is about as logical as fixating on Waitangi Day. -- Jim Pennino Remove .spam.sux to reply. |