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This Rare Friday the 13th

kdawson posted more than 7 years ago | from the paraskavedekatriaphobes-unite dept.

239

Juha-Matti Laurio writes to point out a Washington Times story about how special this particular Friday the 13th is. The digits in the numerical notation for the date add up to 13 — whether you write it in the US or the European form. From the article: "The phenomenon hasn't happened in 476 years, said Heinrich Hemme, a physicist at Germany's University of Aachen who crunched the numbers to find that the double-whammy last occurred Jan. 13, 1520."

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I Just Knew I Shoulda Stayed In Bed Today (4, Funny)

ackthpt (218170) | more than 7 years ago | (#16431751)

While the sum of 2+6+1+1+3=13 is mildly interesting, I never thought much about Friday the Thirteenth outside of Pogo [pogopossum.com] strips. Walt kelly's character in the strip, Churchy LaFemme [flickr.com] perhaps more than any other source kept the Friday the Thirteenth fear alive as the turtle fled in horror for decades, long before the series of films arrived. For those of us who remember (and in some cases still read) the strip, it's still a source of amusement.

"Don't shoot! Don't shoot! It's Friday the thirteenth! Very unlucky to get shot on Friday the thirteenth!"

2+6+1+1+4=14, so there goes Saturday the 14th [imdb.com] too.

Re:I Just Knew I Shoulda Stayed In Bed Today (0, Offtopic)

stfvon007 (632997) | more than 7 years ago | (#16432297)

Near where I live a lot of people did just that cause there was so much snow, and they couldnt even get out of their driveways (not to mention branches and power lines everywhere). Never seen a snowstorm this early before. It took out quite a few trees cause the snow piled on their leaves (wich have only barly started to change color and nowhere near falling off yet)

Re:I Just Knew I Shoulda Stayed In Bed Today (3, Interesting)

yo_tuco (795102) | more than 7 years ago | (#16432385)

I wonder if Heinrich Hemme's calculations take into account the 10 missing days [navy.mil] in the Gregorian calander between 4 October and 15 October 1582?

Re:I Just Knew I Shoulda Stayed In Bed Today (1)

Tim Browse (9263) | more than 7 years ago | (#16432693)

How would his calculations take this into account?

There was no 13th October 1582, so it's irrelevant.

Re:I Just Knew I Shoulda Stayed In Bed Today (5, Funny)

enjerth (892959) | more than 7 years ago | (#16432417)

Yeah, and it's amazing that it still adds up to 13 if you switch the numbers around, 1+1+3+2+6 = 13. WOW!

Re:I Just Knew I Shoulda Stayed In Bed Today (4, Informative)

Iron Condor (964856) | more than 7 years ago | (#16432689)

Vaguely more interesting and almost veering ON topic for slashdot, in binary notation todays date would be

1010 1101 11111010110

...which just so happens to have thirteen "1"s in it.

Re:I Just Knew I Shoulda Stayed In Bed Today (0)

Anonymous Coward | more than 7 years ago | (#16432881)

"todays [sic] date would be"

Hum, you could say a date also includes time. The start of today is JD2454021.5 and at noon is JD2454022.0. That is, if you convert these Julian dates back to Gregorian date you have a fraction of a day to deal with. You'll need floating point.

Commutivity (5, Funny)

P(0)(!P(k)+P(k+1)) (1012109) | more than 7 years ago | (#16431753)

From TFS:

The digits in the numerical notation for the date add up to 13—whether you write it in the US or the European form.
What a relief! I always suspected that the commutativity of addition [wikipedia.org] applied on both sides of the Atlantic.

Or did they mean to imply that the dæmons who govern paraskevidekatria [wiktionary.org] are too preoccupied to uphold mathematical principles today?

In a related article:

Thirteen people, pledged to eliminate triskaidecaphobia, fear of the number 13, today tried to reassure American sufferers by renting a 13ft plot of land in Brooklyn for 13 cents (10d) a month. (Daily Telegraph, 1967)

Re:Commutivity (2, Funny)

ackthpt (218170) | more than 7 years ago | (#16431769)

What a relief! I always suspected that the commutativity of addition applied on both sides of the Atlantic. Or did they mean to imply that the dæmons who govern paraskevidekatria are too preoccupied to uphold mathematical principles today?

If you're in Europe, then you're in luck. It's the 14th already.

the commutivite property of addition... (1)

kylemonger (686302) | more than 7 years ago | (#16431797)

... is taught in grade-school. Surely you don't expect anyone fascinated by numerology to remember it now... ?

Re:Commutivity (5, Funny)

fuzzix (700457) | more than 7 years ago | (#16432213)

Speaking of adding:

"The phenomenon hasn't happened in 476 years, said Heinrich Hemme, a physicist at Germany's University of Aachen who crunched the numbers to find that the double-whammy last occurred Jan. 13, 1520."
...someone can't. Or is it 1996? :)

Re:Commutivity (-1)

Kuxman (876286) | more than 7 years ago | (#16432353)

1/13/1520 ==> 1+1+3+1+5+2+0 = 13

Re:Commutivity (5, Interesting)

UglyTool (768385) | more than 7 years ago | (#16432409)

*sigh*

1520 + 476 = 1996...

Re:Commutivity (0, Funny)

Anonymous Coward | more than 7 years ago | (#16432521)

*sigh*

1520 + 476 = 1996...
Nonono, he can't subtract. Clearly, he couldn't have known the number 476 before he computed the years. Addition has nothing to do with! ;-)

Re:Commutivity (2, Funny)

nebaz (453974) | more than 7 years ago | (#16432533)

I can imagine what someone would say about the parent being 'Informative' during metamoderation. :-)

Hmm... a post showing the sum of two numbers.

Re:Commutivity (0)

Anonymous Coward | more than 7 years ago | (#16432819)

Don't forget the Gregorian calendar started in 1582.

OT: Sig reply (1)

NotQuiteReal (608241) | more than 7 years ago | (#16432667)

...I'm listening to the guy with the lens in a tube rather than the guy with the corpse on a stick

I hope you are right in the long run, but for immediate, practical purposes, the STICK has more WHACKING heft.

Re:OT: Sig reply (1)

fuzzix (700457) | more than 7 years ago | (#16432893)

I hope you are right in the long run, but for immediate, practical purposes, the STICK has more WHACKING heft.

I keep my lart polished and my wrist keen and sharp.

Re:Commutivity (0)

Anonymous Coward | more than 7 years ago | (#16432759)

I think Jan 13, 1520 may or may not be a Friday so unconditionally all over the world. It all depends on the Country due to the fact that switch to Gregarian Calader occured on 15 of October in 1582, and Jan 13, 1520 goes past the switch date, and because different countries adopted Gregarian calander on different dates.

coincidence? I think not! (0)

foobari (227908) | more than 7 years ago | (#16431771)

*places foil hat on head*

But isn't that really 4? (-1)

Anonymous Coward | more than 7 years ago | (#16431777)

If you are following the same principle, then you get 4, since 1+3 = 4. Consistency is key.

Re:But isn't that really 4? (2)

masterzora (871343) | more than 7 years ago | (#16432617)

Good thing Japanese culture associates 4 with Death. We can maintain this silliness now!

Of course, you care about that only if (5, Insightful)

Rosco P. Coltrane (209368) | more than 7 years ago | (#16431779)

you're a numerologist, a mystic, a fortune teller or a similar quack. For most other people who happen to be superstitious, it's just another Friday the 13th. And for the rest of us, the overwhelming majority of rational folks, it's just another day...

In other words ... (1)

vlad_petric (94134) | more than 7 years ago | (#16431809)

Most of us don't suffer from Triskaidekaphobia [wikipedia.org]

Re:In other words ... (1)

intangible (252848) | more than 7 years ago | (#16432141)

Though I seem to know quite a few who suffer from Hexakosioihexekontahexaphobia [wikipedia.org]

Mod Parent Down (5, Funny)

s-gen (890660) | more than 7 years ago | (#16431821)

Just to prove to him its not his lucky day.

Re:Of course, you care about that only if (1)

ackthpt (218170) | more than 7 years ago | (#16431825)

you're a numerologist, a mystic, a fortune teller or a similar quack. For most other people who happen to be superstitious, it's just another Friday the 13th. And for the rest of us, the overwhelming majority of rational folks, it's just another day...

I kept getting cut off by slower vehicles pulling into my lane on the way to work. (They weren't passing anyone, they just moved into it for no apparent reason.) Then I found a dead fly in my salad at lunch (OK, some people might consider it luck, finding it rather than half of one on the next fork.)

Still, haven't been hit by a falling meteor, so far so good.

aahh..but (4, Insightful)

geekoid (135745) | more than 7 years ago | (#16432123)

if it affects how other people behave, then it affects you.

Re:Of course, you care about that only if (2, Funny)

Iron Condor (964856) | more than 7 years ago | (#16432471)

And for the rest of us, the overwhelming majority of rational folks, [...]

Wow.

What country do you live in?

Can I come?

13th Post! (5, Funny)

markana (152984) | more than 7 years ago | (#16431791)

sorry....

Re:13th Post! (5, Funny)

rolfwind (528248) | more than 7 years ago | (#16432221)

Yep, you hit it. I viewed at -1 Flat, and counted, you are indeed the 13th post.

Congratulations. You have reached the pinnacle of your life.

Re:13th Post! (1)

geekoid (135745) | more than 7 years ago | (#16432335)

"Congratulations. You have reached the pinnacle of your life."

are you kidding me? tomorrow he could be the 14th post.

Re:13th Post! (1)

4D6963 (933028) | more than 7 years ago | (#16432641)

are you kidding me? tomorrow he could be the 14th post.

And then? Tomorrow will be the 14th anyway..

Pffft.... (5, Funny)

yo303 (558777) | more than 7 years ago | (#16431793)

It's bad luck to be superstitious.

yo.

Re:Pffft.... (1)

ackthpt (218170) | more than 7 years ago | (#16431883)

It's bad luck to be superstitious.

T'is better to be a Roman. X + X + I + I + I + M + M + V + I = MMXXIX

paraskevidekatriaphobics - a new word (1)

xmas2003 (739875) | more than 7 years ago | (#16431795)

The article mentions that the Fear of Friday, the 13th is called Paraskevidekatriaphobia ... Google only has 1,650 results [google.com] with Urban Legends [about.com] the first one. I gotta believe a double whammy for those superstitious people to have it fall on Halloween [komar.org] - D'OH! ;-)

Re:paraskevidekatriaphobics - a new word (5, Funny)

mattmacf (901678) | more than 7 years ago | (#16431945)

Halloween, however, is celebrated on October 31, therefore, it's only superstitious for those crazy Europeans who insist on writing the date backwards.

; D

Scheiße! (2, Funny)

suso (153703) | more than 7 years ago | (#16432173)

I always confuse Halloween and Christmas.

- Octo Weinstein

Re:Scheiße! (4, Interesting)

Kredal (566494) | more than 7 years ago | (#16432515)

Well, of course... because Dec 25 = Oct 31

(decimal and Octal, that is)

Re:Scheiße! (1)

dotgain (630123) | more than 7 years ago | (#16432895)

Thanks for carefully explaining that to us all.

Re:paraskevidekatriaphobics - a new word (1)

commodoresloat (172735) | more than 7 years ago | (#16432017)

I'm a little unclear as to how Friday the 13th could fall on October 31st?

On another note, that urban legends article is pretty interesting; it cites a study [nih.gov] from the British Medical Journal that claims that although the number of people driving goes significantly down on a friday the 13th, the number of accidents goes significantly up. Anyone know anything about this study, or if anyone has tried to replicate these disconcerting results?

On another note, I fell down half a flight of stairs today -- stairs I have never fallen down before, despite using them at least 3 times a week. My friend got a flat tire. This anecdotal evidence proves... well, nothing, but I'm still interested in that study.

Re:paraskevidekatriaphobics - a new word (1)

xmas2003 (739875) | more than 7 years ago | (#16432157)

I meant to say NEAR (not on) Halloween - although ironically, 31 is 13 flipped ... so just read it backwards! ;-)

Sorry 'bout the typo.

A physicist? (3, Insightful)

nickmue (905710) | more than 7 years ago | (#16431801)

They needed a physicist to figure out the last time that happened?? Couldnt most first year CS majors write a program to calculate this??

Re:A physicist? (1)

robi2106 (464558) | more than 7 years ago | (#16432253)

No. It is just that a physicist is the only type of person taht would sit there and think "I wonder when this happened last....."

jason

Re:A physicist? (0)

Anonymous Coward | more than 7 years ago | (#16432377)

I think the point was that you don't even need to be a first year CS major to calculate this.

Re:A physicist? (3, Interesting)

Iron Condor (964856) | more than 7 years ago | (#16432669)

Here's a cute little first-year CS problem: show that with the current calendar the 13th of a month has a higher probability of falling on a friday than any other day of the week.

European Dates (4, Informative)

RAMMS+EIN (578166) | more than 7 years ago | (#16431817)

``The digits in the numerical notation for the date add up to 13 whether you write it in the US or the European form.''

That may be related to the fact that they are the same digits, only in a different order.

By the way, there isn't really such a thing as a "European form". Different European countries have different conventions about writing dates.

Re:European Dates (1, Funny)

Anonymous Coward | more than 7 years ago | (#16431879)

well, maybe so, but to an american, anything non-american is "european". which also means randomly different, but not so much that it matters unless you are also european yourself.

sorry -- americans are like that.

Re:European Dates (1)

MrWhitefolkz (751859) | more than 7 years ago | (#16432001)

Thanks for speaking for all Americans...

Re:European Dates (1)

mr_matticus (928346) | more than 7 years ago | (#16432607)

US notation is standardized MM/DD/YY. I personally write "13 October" on all of my meeting notes, etc. but the short form is still always MM/DD/YY. It's assumed and engrained in forms, computer input fields, etc. If you've been using DD/MM/YY on government forms you may find yourself in trouble!

E/kdawson (0)

Anonymous Coward | more than 7 years ago | (#16431833)

Isn't this supposed to be under the Enlightenment topic?

-1, Who Cares (-1, Flamebait)

Gothmolly (148874) | more than 7 years ago | (#16431859)

This isn't funny, nor is it news. WTF?

Re:-1, Who Cares (0, Troll)

sgt_doom (655561) | more than 7 years ago | (#16432055)

Perhaps not to you but Jan. 13, 1520 was the date of Johann Gutenberg's last solid crap....not something to be taken lightly, historically speaking that is....

Re:-1, Who Cares (0)

Anonymous Coward | more than 7 years ago | (#16432197)

Hey, could be worse. At least it's timely.

When the dupe appears next Tuesday, it'll just be sad.

- K

Re:-1, Who Cares (1)

geekoid (135745) | more than 7 years ago | (#16432299)

niether is your post, yet you still posted it.

How about something more interesting? (5, Interesting)

winkydink (650484) | more than 7 years ago | (#16431909)

Like it's the anniversary of the supposed origin of Friday the 13th being unlucky? October 13, 1307 [wikipedia.org]

Every number/date/etc. is unique somehow (2, Insightful)

burndive (855848) | more than 7 years ago | (#16431929)

If you find one that isn't, then it's unique in being the first one that isn't.

Re:Every number/date/etc. is unique somehow (0)

Anonymous Coward | more than 7 years ago | (#16432033)

And the original one is the first that was, but isn't any more?

European form (3, Insightful)

JHromadka (88188) | more than 7 years ago | (#16431967)

What about the African form? ;)

Re:European form (-1, Flamebait)

Anonymous Coward | more than 7 years ago | (#16432087)

Africans lack the brain capacity to count past 10.

African dates are non-migratory (n/t) (1)

Mateo_LeFou (859634) | more than 7 years ago | (#16432303)

no text

self-promoting talking head? (2, Interesting)

vague_ascetic (755456) | more than 7 years ago | (#16432059)

"But it's not exactly TGIF [washingtontimes.com] for the 21 million Americans who fear the day. Some may not travel or even get out of bed, said Donald Dossey, a North Carolina psychologist who coined the term "paraskevidekatriaphobia" 20 years ago. He estimates that the nation is out $900 million in lost productivity because of Friday the 13th sick-outs."

How do they come up lost productivity statistics anyway?

Re:self-promoting talking head? (1, Funny)

Anonymous Coward | more than 7 years ago | (#16432709)

By my calculation $457.3 billion dollars are lost in productivity annually by calculating lost productivity statistics.

(You don't want to know the number for making obvious jokes on slashdot).

Um.. not so phenomenal? (5, Informative)

Anonymous Coward | more than 7 years ago | (#16432073)

Hasn't anyone noticed by now that this year, there was a Friday the 13th in January, which has the exact same digits as today? (01/13/2006 vs 10/13/2006)
Meaning.. this phenomenon has happened within the last year?

Re:Um.. not so phenomenal? (4, Informative)

suv4x4 (956391) | more than 7 years ago | (#16432149)

Hasn't anyone noticed by now that this year, there was a Friday the 13th in January, which has the exact same digits as today? (01/13/2006 vs 10/13/2006)
Meaning.. this phenomenon has happened within the last year?


Parent is right: 01/13/2006 was a Friday. You may wanna mod the dude up.

Not that it matters either way, but this omission further proves that fatalysts and numerologists are quite slow mentally.

Re:Um.. not so phenomenal? (2, Insightful)

howlingfrog (211151) | more than 7 years ago | (#16432307)

Grandparent: Hasn't anyone noticed by now that this year, there was a Friday the 13th in January, which has the exact same digits as today? (01/13/2006 vs 10/13/2006) Meaning.. this phenomenon has happened within the last year?

Parent: Parent is right: 01/13/2006 was a Friday... this omission further proves that fatalysts and numerologists are quite slow mentally.

Furthermore, 2006-1520 = 486, not 476. Quite slow indeed. It's fun to blame the universe for everything that goes wrong all day when there's a Friday the 13th, but people who take the whole thing seriously should be shot in the face with a bazooka.

Re:Um.. not so phenomenal? (1)

suv4x4 (956391) | more than 7 years ago | (#16432827)

It's fun to blame the universe for everything that goes wrong all day when there's a Friday the 13th, but people who take the whole thing seriously should be shot in the face with a bazooka.

You better do it today, while they are weak!

Re:Um.. not so phenomenal? (0, Flamebait)

daveo0331 (469843) | more than 7 years ago | (#16432255)

Also Friday, March 13, 2004

But it won't happen again until January 2024.

What makes these uncommon is that the digits in the year can't add up to more than 8. Obviously this condition is difficult to meet late in a century, which explains the gap from 1520 to 2004.

Re:Um.. not so phenomenal? (3, Informative)

Samurai Cat! (15315) | more than 7 years ago | (#16432399)

But it won't happen again until January 2024.

Ehhh! Wrong.

05/13/2011. :D

Re:Um.. not so phenomenal? (2, Informative)

telbij (465356) | more than 7 years ago | (#16432413)

March 13, 2004 was a Saturday.

Re:Um.. not so phenomenal? (0)

Anonymous Coward | more than 7 years ago | (#16432285)

Correct indeed
January 13, 2006 was a Friday, and its digits add up to 13 just like October 13, 2006.

10 + 13 + 2006 = 2029...these add up to 13 too!! (5, Funny)

Cobraman (1013369) | more than 7 years ago | (#16432155)

10+13+2006 = 2029 2+0+2+9 = 13 aaaaaaaaaaaaaaaaaaaaaaaaaaaahhhh! all hell is breaking loose!!!!!!!

WTF?? (0, Offtopic)

Harmonious Botch (921977) | more than 7 years ago | (#16432177)

Did the editor forget that this /.? How is this superstition news for geeks?

Re:WTF?? (1)

SeaFox (739806) | more than 7 years ago | (#16432483)

How is this superstition news for geeks?

We're supposed to use it to take advantange of those of lower intelligence. The more information we have about superstitions the easier it is to use it against someone.

Old news! (4, Funny)

Eythian (552130) | more than 7 years ago | (#16432181)

Slashdot is behind the times again! According to all my calendars, it's been Saturday the 14th for 13 hours already :)

Re:Old news! (0, Offtopic)

geekoid (135745) | more than 7 years ago | (#16432311)

ha, when I go home, your weekend will be half over, while mine is just getting started.

Also, I get three days off every weekend.

That had nothing to do with the subject, but I love to brag about that.

Re:Old news! (1)

smoker2 (750216) | more than 7 years ago | (#16432717)

Ah you crazy kiwis, always out there on the bleeding edge ....

The first Friday the 13th.. (4, Informative)

the_rajah (749499) | more than 7 years ago | (#16432185)

On Friday, October 13, 1307 (a date possibly linked to the origin of the Friday the 13th legend), Philip had all French Templars simultaneously arrested, charged with numerous heresies, and tortured by French authorities nominally under the Inquisition until they allegedly confessed. This action released Philip from his obligation to repay huge loans from the Templars and justified his looting of Templar treasuries. From http://en.wikipedia.org/wiki/Knights_Templar [wikipedia.org]

"Pure chance," (4, Funny)

Scooter (8281) | more than 7 years ago | (#16432257)

From TFA:-

'"Pure chance," the good professor told the press yesterday. '

Er right then, and there was me thinking the dates were pretty much predictable. I have a sort of flip chart thing on my wall that has successfully predicted all the dates this year - in sequence! It has pictures of cars on it too, which is nice.

Re:"Pure chance," (1)

geekoid (135745) | more than 7 years ago | (#16432359)

he is a physist.
Clearly he was talking about the existence of the universe that has linear time that has life that creates a calendar was pure chance.

mod uP (-1, Troll)

Anonymous Coward | more than 7 years ago | (#16432361)

That's "31" Backwards (2)

Doc Ruby (173196) | more than 7 years ago | (#16432365)

And what Friday the 13th could be creepier than one in October?

The Catholics who made our modern calendar had a wicked sense of humor.

Unlucky my ass.. (3, Funny)

MioTheGreat (926975) | more than 7 years ago | (#16432397)

Unlucky my ass. I was #7 for preordering my Wii this morning....

The Math? (0)

Anonymous Coward | more than 7 years ago | (#16432457)

"The phenomenon hasn't happened in 476 years, said Heinrich Hemme, a physicist at Germany's University of Aachen who crunched the numbers to find that the double-whammy last occurred Jan. 13, 1520."



Is it just me or does 2006-476=1530

Birthday today (1)

YrWrstNtmr (564987) | more than 7 years ago | (#16432481)

Does anyone else in here have a birthday today?

Re:Birthday today (0)

Anonymous Coward | more than 7 years ago | (#16432593)

I'm sure many have a birthday today - to get an average, just divide the number of slashdot users by 365 and you'll get an approximate number of slashdot users born today. Of course, someone would argue that this is just the techy crowd so the result maybe skewed (techy people are mostly born around other months than october? .. yeah right).

"Crunching" the numbers (3, Informative)

thisisjoel (1013377) | more than 7 years ago | (#16432499)

If anyone else wants to "crunch" those numbers, here's some Perl:
use Date::Calc qw( Add_Delta_Days Day_of_Week );

my $MAX_YEAR=3000;
my @date = (1,1,1);

sub summer { $a = 0; foreach (@_) { $a += $_ } $a }

while( $date[0] < $MAX_YEAR ) {
@date = Add_Delta_Days( @date, 1 );
if( $date[2] == 13
&& Day_of_Week( @date ) == 5
&& summer( split '', sprintf( "%04d-%02d-%02d", @date ) ) == 13
) {
printf( "%04d-%02d-%02d\n", @date );
}
}
I get 2006-01-13 as the most recent occurrence.

Re:"Crunching" the numbers (0)

Anonymous Coward | more than 7 years ago | (#16432755)

I verified your findings. And Jan. 13, 1520 was a tuesday. Never ask a physicist to do the job of a computer scientist.

Here's my python:

import calendar
year = 2006
month = 10
months = ['jan','feb','march','apr','may','june','jul','aug ','sep','oct','nov','dec']

for y in range(year,0,-1):
        for m in range(month,0,-1):
                for week in calendar.monthcalendar(year,month):
                        for d in week:
                                if d == 0: continue
                                if d != 13 or calendar.weekday(y,m,d) != calendar.FRIDAY: continue
                                strDate='%d%d%d'%(d,m,y)
                                sum = 0
                                for digit in strDate:
                                        sum += int(digit)
                                if sum == 13:
                                        print "%d-%s-%d"%(d, months[m-1], y)

Knights Templar (4, Interesting)

Danathar (267989) | more than 7 years ago | (#16432523)

I find it funny that people regaurd today as unlucky when it's only the Aniversary of the sacking of the Knights Templar by the King of France and the Pope hundreds of years ago!

History that still effects people after so long is cool

Interesting, but... (0, Flamebait)

throatmonster (147275) | more than 7 years ago | (#16432567)

So fucking what?

I see it as lucky 7 (4, Interesting)

10e6Steve (545457) | more than 7 years ago | (#16432621)

10-13-2006 would evaluate to 1 + 0 + (-1) + 3 + (-2) + 0 + 0 + 6 which equals lucky 7.

Wasn't this on South Park The other night? (3, Funny)

SrLnclt (870345) | more than 7 years ago | (#16432635)

Cartman: Twelve contains the numbers 1 and 2 just like the toilet yesterday where somebody went #2 instead of #1. Add 2 and 1 with 911 and you get 914. Drop the 4 and its 91. Exactly the score Kyle got on his spelling test 12 days after 9/11!

inverse relation to perverse months (0)

Anonymous Coward | more than 7 years ago | (#16432637)

There's an old piece of trivia from a Martin Gardener's Scientific American column many years ago. The more Friday 13ths in a year, the less perverse months in that year. A perverse month is one that requires 6 rows (or a folded 5th row) to represent on a calendar. So, a bad year for the superstitious, a good year for the calendar printers.

There's is nothing mystical about the relationship, it's just the way it turns out in the 28 year cycle.

European form? (1)

miasmic (669645) | more than 7 years ago | (#16432761)

The European Form of writing dates? More like the USA's form of writing dates, and then all the other countries in the world's way of writing dates.

Ahh, I remember it well ... (1)

smoker2 (750216) | more than 7 years ago | (#16432765)

the time was 1:23:45 on the 6th day of the 7th month of the year '89.

How we celebrated !

Happy days, happy days ....

Of course, we all thought digital watches were a pretty neat idea.

supernatural (1)

jqstm (703262) | more than 7 years ago | (#16432799)

Do all supernatural entities count in base ten?

Don't fall for this... (0)

Anonymous Coward | more than 7 years ago | (#16432845)

It is bad luck to be superstitious.

13 (1)

djones211 (1010167) | more than 7 years ago | (#16432943)

someone has absolutely nothing better to do.

Freaky Friday (1)

DigitAl56K (805623) | more than 7 years ago | (#16432953)

I'm not one for superstition, but when Friday the 13th comes around and Slashdot manages to actually publish an article on it before Saturday the 14th, well.. what can I say?
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