Irrationality

[Maksutov]

Everyone have a good Pi day?

This is when I always make sure to check my radial tires.

[davidlpf]

well my nextdoor neighbor who is a retired math and physics teacher house 314 but this is the first I heard of pi day.

[Whirlpool]

MSNBC--Today you can eat a slice of pizza, raise a toast with a piña colada, or just reflect for a moment on 3/14 at 1:59 p.m. to celebrate the most irrational holiday of the year: Pi Day. The observance commemorates the first few digits of one of the oldest known constants, 3.14159 ... and it also happens to coincide with Albert Einstein's birthday, which makes today a doubly cool day for science geeks. So what else can you do to celebrate?


Here is where I found out its Pi day today. Pi=3.14159

;)

[Trebuchet]

I guess that's an American holiday -- in most of the world 3/14 would be the 3rd day of the 14th month.

[Whirlpool]

I guess that's an American holiday -- in most of the world 3/14 would be the 3rd day of the 14th month.

Huh?

What is the 14th month? :confused:
We only have 12 months in a year.

Is it the Additional Incentive Salary Bonus Package we received every end of the year? :p

[davidlpf]

there should be an international day for all the pies like apple pie, pizza pie, blueberry pie etc....

[Whirlpool]

Yummy.. I love blueberry pie.

:)

[Jeff Root]

A really good blueberry pie is transcendental!

-- Jeff, in Minneapolis

[Jens]

I guess that's an American holiday -- in most of the world 3/14 would be the 3rd day of the 14th month.

I don't know, I suppose that depends on what you mean by most of the world. In East Asia, which has probably 1.5 billion people, 3/14 would be March 14, because they count in the order year, month, day. In the same way, an address is written in an order like country, state, city, street. Maybe you meant, "in most of Europe." I have no idea how they do it in African languages or in say Hindi.

[Van Rijn]

I guess that's an American holiday -- in most of the world 3/14 would be the 3rd day of the 14th month.

Well, the third day of the fourteenth month would be an irrational holiday.

[Van Rijn]

Huh?

What is the 14th month? :confused:
We only have 12 months in a year.

Is it the Additional Incentive Salary Bonus Package we received every end of the year? :p

The reference is to the order of the month, day, and year. In the U.S. it is usually MM/DD/YYYY (Month/Day/Year, and there can be other separators). Elsewhere it is DD/MM/YYYY or YYYY/MM/DD. I've always thought YYYY/MM/DD made the most sense. It sorts correctly, after all.

[crosscountry]

I guess that's an American holiday -- in most of the world 3/14 would be the 3rd day of the 14th month.



why not the 31st of April:whistle: :doh: :lol:

[Swift]

My wife had the last piece of cherry pie to celebrate.

[Donnie B.]

Pi R squared?

No, pi are round. Cornbread are square.

[Doodler]

Everyone have a good Pi day?

This is when I always make sure to check my radial tires.

Whew...I saw the title of this thread and was thinking "Aw heck, whaddididonow?"

:D

[Torsten]

Whew...I saw the title of this thread and was thinking "Aw heck, whaddididonow?"

I thought it would be a comment on HDDesign.

[snarkophilus]

Appropriate response to the round joke: http://www.qwantz.com/index.pl?comic=359

We had cherry pie at 10:59, pretending that the 0 wasn't there. It turns out that a quarter pi is an eighth pie.

[hhEb09'1]

Appropriate response to the round joke: http://www.qwantz.com/index.pl?comic=359

We had cherry pie at 10:59, pretending that the 0 wasn't there. It turns out that a quarter pi is an eighth pie.JOOC, why not 1:59? at tea maybe

[tofu]

I read somewhere that if you had a circle nearly the size of the universe, say 15 billion light years in radius, and you used just the first 10 digits of pi to calculate the circumference of that circle, then the error (caused by using *only* 10 digits) would be less than 1 meter.

And yet we know the value of pi to many millions of digits.

[Doodler]

I read somewhere that if you had a circle nearly the size of the universe, say 15 billion light years in radius, and you used just the first 10 digits of pi to calculate the circumference of that circle, then the error (caused by using *only* 10 digits) would be less than 1 meter.

And yet we know the value of pi to many millions of digits.

Billions, actually. At least 1 billion digits.

[SeanF]

I read somewhere that if you had a circle nearly the size of the universe, say 15 billion light years in radius, and you used just the first 10 digits of pi to calculate the circumference of that circle, then the error (caused by using *only* 10 digits) would be less than 1 meter.
First, though, you've got to measure the radius of the universe to an accuracy of one meter. ;)

[hhEb09'1]

I read somewhere that if you had a circle nearly the size of the universe, say 15 billion light years in radius, and you used just the first 10 digits of pi to calculate the circumference of that circle, then the error (caused by using *only* 10 digits) would be less than 1 meter.

And yet we know the value of pi to many millions of digits.Hmmm. The number 15 billion itself has 11 digits. That error should be at least a light year, not one meter.

An old Straight Dope column (http://www.straightdope.com/classics/a3_357.html) uses 2 x 1034 angstroms as the radius of the universe, 20 billion light years, I guess. It says that 39 decimal places of pi would "suffice for computing the circumference of a circle girdling the known universe with an error no greater than the radius of a hydrogen atom"

Of course, later on, someone takes issue with that, but they do so in error themselves.Billions, actually. At least 1 billion digits.Looks like it might be trillions (http://www.super-computing.org/pi-decimal_current.html)?

[tofu]

ok, well I didn't know. I think I got that from one of those email forwards. Here's a web page on it.

http://www.trans4mind.com/personal_development/JavaScript/longnumAstronomical.htm#o4%20Diameter%20Of%20The%2 0Universe%20(Calculation)

clearly, 10 digits is not enough.

[mike alexander]

I feel an irrational comfort in the knowledge that even though my circumference is increasing with time, so is my radius, in exact (if irrational) proportion. My ulna, on the other hand, just sits there.

[Doodler]

I feel an irrational comfort in the knowledge that even though my circumference is increasing with time, so is my radius, in exact (if irrational) proportion. My ulna, on the other hand, just sits there.

Quite humerus.

[crosscountry]

there is no reason we cannot take pi out way past trillions.


anyone ever read Contact by Sagan? the movie doesn't have this part, but in the end of the book the main character realizes that our universe was planned when she finds that pi repeats itself: very unlike Sagan to talk about "creationism" Or maybe that was his idea of fiction.

[hhEb09'1]

anyone ever read Contact by Sagan? the movie doesn't have this part, but in the end of the book the main character realizes that our universe was planned when she finds that pi repeats itself: In my copy of the book, she finds a pattern in pi, a circle. Pi does not repeat--if it did, it would be rational.

[HenrikOlsen]

The problem with that interpretation is that one of the unsolved mathematical puzzles is whether any finite sequence of digits will be found somewhere in pi.
If it's shown that they they will all be there, then finding the circle won't be that bit a surprise.

[snarkophilus]

JOOC, why not 1:59? at tea maybe

Because my math class is 10:30-11:30. :)

[Maksutov]

Yummy.. I love blueberry pie.

:)My favorite pie...especially with fresh blueberries!

Blueberry muffins are great, too...

http://www.cosgan.de/images/smilie/nahrung/e035.gif

That's after one gets around to a square meal, however.

[Whirlpool]

My favorite pie...especially with fresh blueberries!

Blueberry muffins are great, too...

http://www.cosgan.de/images/smilie/nahrung/e035.gif

Those are yummy too, I love everything with blueberries on them.:p

I think , I'm gonna have one after I got off from work today.:think:

[crosscountry]

In my copy of the book, she finds a pattern in pi, a circle. Pi does not repeat--if it did, it would be rational.


maybe I should go back and read it. It has been a couple years.

[NEOWatcher]

Time to bump a nearly year old thread... :whistle:

To continue discussions from 2006 (http://www.bautforum.com/off-topic-babbling/39166-celebrating-number-pi-day-beyond.html), 2005 (http://www.bautforum.com/off-topic-babbling/16912-happy-pi-day.html), and the other 2005 (http://www.bautforum.com/off-topic-babbling/19681-happy-casual-pi-day-everybody.html)

CNN is continuing the tradition with American Pi (http://scitech.blogs.cnn.com/), sung to the tune of, yes, you guessed it... American Pie.

[kleindoofy]

This whole PI-Day thingy has me going in circles ... :D

[Gillianren]

It's just nice to see Mak's name as an OP every once in a while.

[geonuc]

Time to bump a nearly year old thread...
Nearly two years, I do believe.

[Paul Beardsley]

It's just nice to see Mak's name as an OP every once in a while.

Hear hear.

[mahesh]

"Pass the pepperoni please"

[mahesh]

Happy Birthday wishes to pi1983!
...and Spitfire IX!

[mugaliens]

This whole PI-Day thingy has me going in circles ... :D

Ogh, ogh, ogh, ogh, ogh, ogh, ogh... (the senior McFly in Back to the Future)

I think I'm going to spend it figuring out how to use pi to evenly divide the space between two parallel lines into three spaces using two more parallel lines....

[KaiYeves]

I like Pi Day, even though I'm not very good at Math. It's still a cool number. I went to one of the Math rooms at my school to celebrate, and the teacher had these funny-shaped blocks one had to make into a cube that would fit into a box. I spent all of free period trying, but couldn't do it.

[mike alexander]

Why not lock old threads after a year?


Why..... pi!

[Tobin Dax]

Why not lock old threads after a year?


Why..... pi!
That's not a rational reason to keep the threads open.

[chrissy]

That's not a rational reason to keep the threads open.

Nope, but it is an irrational one. :D

[Moose]

Just so you keep it real, folks. ;)

[Tobin Dax]

Moose, I don't think that anyone wants this to get too complex. :)

[davidlpf]

If this gets too complex it might polarize this group.

[Swift]

This thread seems to be going around in circles.

[davidlpf]

This thread seems to have not have much of a stroy arc.

[Moose]

Are you saying we're off on a tangent, davidlpf?

[Torsten]

Pseudo-sinusoidal. Perhaps just episodic.

[Swift]

And now, a musical interlude....
So bye, bye Miss American Pi...

[NEOWatcher]

Nearly two years, I do believe.
My goodness, you're right. I was looking for pi threads had a bunch open then mistakenly posted here instead of there (http://www.bautforum.com/1453690-post19.html).

Now we got two that won't expire. :whistle:

[Swift]

I could merge them, but that seems entirely too rational.

[davidlpf]

Lets just get a wheel of cheese and discuss this.

[Gandalf223]

I must strenuously object to this thread. Any discussion titled, "Irrationality," is obviously political in nature.

[Swift]

I must strenuously object to this thread. Any discussion titled, "Irrationality," is obviously political in nature.
Lt. Weinberg: "I strenuously object?" Is that how it works? Hm? "Objection." "Overruled." "Oh, no, no, no. No, I STRENUOUSLY object." "Oh. Well, if you strenuously object then I should take some time to reconsider."
;)