ABOUT COSMIC LOG

Quantum fluctuations in space, science, exploration and other cosmic fields... served up regularly by MSNBC.com science editor Alan Boyle since 2002.

Alan Boyle covers the physical sciences, anthropology, technological innovation and space science and exploration for MSNBC.com. He is a winner of the AAAS Science Journalism Award, the NASW Science-in-Society Award and other honors; a contributor to "A Field Guide for Science Writers"; and a member of the board of the Council for the Advancement of Science Writing.

Check out Boyle's biography or send a message to Cosmic Log via cosmiclog@msnbc.com.



Happy Pi Day

Posted: Wednesday, March 14, 2007 3:14 AM by Alan Boyle

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?

You'll find plenty of online suggestions - including doing a pi-mile run (approximately equivalent to a 5K run), wearing a math-themed T-shirt, sending pi cards to your friends, screening the movie "Pi" on DVD, setting up some educational activities (which celebrate the fact that multiplying pi by the diameter of a circle gives you its circumference) ... or merely serving up some pie at a pi party.

If you're in the vicinity of San Francisco's Exploratorium museum, you can join in a ceremonial walk around the Pi Shrine and take part in other observances and experiments. Even if you're not anywhere near the real-life Exploratorium, you can participate virtually at the 'Splo museum in Second Life.

Whatever you do, don't be afraid to express your inner geek. If you've ever wanted to search for your phone number (or other number strings) among the millions of digits of pi, or play with the sounds and colors of pi, this is the day to do it.

One day a year really isn't enough to cover all the science geekery out there: Last month, we listed other science-themed holidays - and it looks as if the next excuse for a geekfest will be Yuri's Night, on April 12. Am I missing anything? Feel free to pass along your own scientific days to remember. In any case, hoist a piña colada (or at least a glass of pineapple juice) in the spirit of irrational exuberance.

P.S.: Whether or not you're a math geek, you'll enjoy this paean to pi from The Associated Press. And to mark Einstein's birthday, take a spin through our slide show tracing the great man's life.

MAIN PAGE

Email this EMAIL THIS

Comments

Pi day? That is hilarious, but important...

I watched the movie Pi the other day for the thousandth time and still thought the acting was terrible.

However, I intend to watch it again today at some point in honor of this special date...
Mmmmmmm, Pi.
Many years ago one of my fellow classmates exclaimed upon being told that e^(i x pi) = 0, "My God! All that work for nothing!"
I heart Pi Day
An anonymous poster sent along this question for Andy Motherway:  "If you think the acting is so terrible in the Pi movie, then why have you watched it a thousand times?"
Pi day "on 3/14 at 1:59 p.m" would be incorrect- it s/b 3/14 at 1:59 A.M. 1:59 pm is correctly expressed 13:59 which would make the string 3.141359 instead of the 3.14159 you're going for. Sorry to geek on your parade.
Hate to do this, but to correct a previous comment, e^(i x pi)=-1, not 0.
Even a fifth grader can spell pie. Sheesh. Anyway, that math term thingy is still Greek to me.
All that work for nothing!  ;-)

Yes, military time spoils the string... But if you were up at 0159 on 3/14 (GMT, right?), my hat's off to you. In fact, if you wanted to get all geeky about it, you would have marked the day on Jan. 3 (3/1 in European notation) with a moment at just before 0416 (no way around that zero!).
VM New Jersey I guess I'm a geek too because I thought the same thing. On second thought, would 1:59am be 3.140159?
I happen to share a birthday with this "religious holiday" for math teachers. They always made a big deal out of it throughout high school. And I really hate math too!
"Pi day "on 3/14 at 1:59 p.m" would be incorrect- it s/b 3/14 at 1:59 A.M."

Since Pi is a number related to a circle, shouldn't both times be celebrated for a more well-rounded experience.
Ok, the coolest thing about this entry and the subsequent posts, is that no one linked it to a hatred of Microsoft, Bush, Iraq, Democrats, Republicans, etc. Thank you geeks for not turn this into a rant like everyone else does!
is there any chance that black holes would have anything to do with time only moving forward? considering that time is the only thing that seems to travel in one direction only could it be that black holes pulling things in one direction towards them would have anything to do with the time travel and procession
I am making pie today. An amazing apple pie. All in honor of Pi Day. :)
To complicate things, in Spanish, dates are given DAY MONTH, not month day, so 3/14 has no meaning, since thre is no month 14 nor 31/4  since April has 30 days....

Well, pi is part of our every day existence....
Happy Pi Day from mysliceofPi.com!!
YOU ALL ARE GEEKS
I've always celebrated PI day on 22/July.
You people have WAYYY to much time on your hands!! But then, what does that say of me b/c  I read these things!
I don't think it matters what specific time you celebrate pi day. Or even what day. The important part is the delicious pi. MmmmMmmm apple pi. Cherry pi. Boston cream pi. Chocolate pudding pi. Mincemeat pi. I hope to have a stomach ache by the end of the day!
22/July, yeah that's close enough I guess...

Can I have a large container of coffee, cream and sugar. Remember that and you remember pi.
singing pi....
pi.ytmnd.com
(credit to website creator)
In honor of Pi day my fellow Agriculture Club members and I will walk around our company building.

NASA OUT
why doesn't anyone celebrate phi day? or how about e-day? these numbers are just as irrational and transcendental as pi and debatably more significant.
Oh, and don't forget that Chiaramonte became Pope Pius on March 14, 1800. Maybe he, too, was a pi geek.
Even wannabe geeks.  Unbelievable.  Spend your time reading about math and the sciences.  Don't speculate about subjects and events with which you have only an ever so slight familiarity.  As for time only going forward... how do you know this?  Perhaps you meant humans only EXPERIENCE time going forward.  My geek community believes there are no absolutes.  It would, however, make a great thought experiment (see Einstein and Schrodinger), but I do not have the ..... [aw, do I have to say it?] ... time (I just couldn't help myself!).  Anthropocentrists will be our collective and eventual downfall. ---- Close enough to politics (or religion) for you?
Pi are not square. Pi are round. Cornbread are square.
e^2(pi)i = 0
Check out Irving Kaplansky's pi song

http://www.maa.org/mathland/
mathtrek_7_12_99.html
As Pikachu would say: "Pi, pi, Pikapi"!
If you want to listen to an awesome Pi song check out The Pi Song guys my space page,

http://www.myspace.com/hardnphirm,

It Rocks!
pi should be spelled with e at the end. ask dan quayle.
And so the lovely, geeky and rant free day has been marred.

I think I'll make cheese cake... after all, it's more of a custard pie than a cake.

I wonder what PI looks like in base 12. Hmm.....
Q: What do you get if you divide the circumference of a jack-o-lantern by its diameter?

A: Pumpkin pi.
On March 14 at 1:50p.m. under Zip Code 92653 (Laguna Hills, California) I celebrated 9 decimals of pi.
Pikachu does not say 'Pi' as in the mathimatical pi. He says 'pi' as in pee. Durrrr.
I love Pi day, now I can't wait till 2015
3.1415
lol YAY
If time were to go backwards would we celebrate ip day, daddy?
I don't know where people got the idea that Pie are square, since everyone knows Pie are round.
Hate to be petty, but e^2*pi*i = 1.

e^pi*i = -1.
My friend told me 2 days ago that she was getting a tattoo of the pi symbol today, and the only reason I remembered it was today is that today also happens to be my brother's birthday. It didn't even occur to me that the reason she got it today is that it's pi day (until I saw this article)! She's getting a tattoo of pi because she's a math teacher, and she embraces her geekiness!
oopsie.. e^2(pi)i = 1 .. dang it..
And like an idiot, I celebrated Pi day on March 1st, at 4:15.
I attempted to call (314) 159-2654, to wish a happy Pi day to whoever in St. Louis had the lucky phone number, but the phone could not connect as dialed.

Too bad.  If I ever move to that area code I'm requesting Pi as my phone number.
Many MANY years ago I set the combination on my briefcase to Pi, thinking no one could possibly guess that one - thought I was so clever. Now I need to go home and check. Dang.
Sorry guys! e^i*z*pi is zero only for z=(i/pi)*infinity! So keep working!!
sine pie = 0! A little trig to liven up the party:)
Kashyap has finally got it, i just hope that the (*) is for multiplication and not the complex conjugate.
Veerrry interesting.  And if anyone cares phi is also celebrated by some and phi is considered by them to be much more 'interesting' than plain old pi, being the formula for the Golden Equation and being used by visual artists in composition.  It is the description of things like seashells, flowers, and spiral galaxies among many others.

If anyone out there cares, I remember the pi relationship being predicated upon right-angled triangles (easily obtained area) crammed into a given circle in astronomical numbers, side to side, filling the circle almost completely, except for the tiny arc of the circle's circumference where the foot of each triangle touched it.  The more triangles, the closer the computed area approached the true area of the circle.  But the two numbers would never co-incide until infinity, which is why the decimal system of expressing pi will never reach "0" and therefore become definite.  I would suppose the same would apply if the base 12 system of counting is used.  Circles are circles and triangles are triangles.


SEND A COMMENT

PLEASE READ: All comments must be approved before appearing in the thread; time and space constraints prevent all comments from appearing. We will only approve comments that are directly related to the blog, use appropriate language and are not attacking the comments of others.

Message (please, no HTML tags. Web addresses will be hyperlinked):

TRACKBACKS

Trackbacks are links to weblogs that reference this post. Like comments, trackbacks do not appear until approved by us. The trackback URL for this post is: http://cosmiclog.msnbc.msn.com/trackback.aspx?PostID=89169

Latest Tech & Science News

Syndicate This Site

Add Cosmic Log to your news reader:
live.com xml
myyahoo msn
bloglines newsgator
google