[NLRS] FRIDAY (Today) IS PI DAY

[Zack Widup]

Yes, that's true. I remember those days.

And realize it was slide rules that got our space program going and put men
on the moon.
:-)

73, Zack W9SZ


On Fri, Mar 14, 2014 at 4:36 PM, Dr. Gerald N. Johnson
<geraldj at netins.net>wrote:

>
>
> Back in the slide rule days 22/7 was close enough for most work. An error
> of less than 1/2 part per thousand.
>
> 73, Jerry, K0CQ
>
>
> On 3/14/2014 3:03 PM, Bill Ockert - ND0B wrote:
>
>>
>>
>> So the answer wasn't 42?
>>
>> -----Original Message----- From: W0WOI at aol.com
>> Sent: Thursday, March 13, 2014 10:55 PM
>> To: NLRS at mailman.qth.net
>> Subject: [NLRS] FRIDAY (Today) IS PI DAY
>>
>>
>>
>>
>> FRIDAY IS PI DAY:
>> March 14th (3.14), is day. It's an occasion to _celebrate_
>> (http://www.teachpi.org/) one of the most compelling and mysterious
>> constants of Nature.
>> _Pi_ (http://en.wikipedia.org/wiki/Pi) appears in equations describing
>> the
>> orbits of planets, the colors of auroras, the structure of DNA. The value
>> of is woven into the fabric of life, the universe and ... _everything_
>> (http://en.wikipedia.org/wiki/File:Life,_The_Universe_and_
>> Everything_cover.jpg)
>>
>> .
>> Humans have _struggled_
>> (http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Pi_
>> chronology.html)
>> to calculate for thousands of years. Divide the
>> circumference of a circle by its diameter; the ratio is . Sounds simple,
>> but the devil is in the digits. While the value of is finite (a smidgen
>> more
>> than 3), the decimal number is infinitely long:
>> 3.1415926535897932384626433832795
>> 02884197169399375105820974944592307
>> 81640628620899862803482534211706..._more_
>> (http://www.geom.uiuc.edu/~huberty/math5337/groupe/digits.html)
>>
>>
>> Supercomputers have succeeded in calculating more than 2700 billion digits
>> and they're still crunching. The weirdest way to compute : throw_needles_
>> (http://www.angelfire.com/wa/hurben/buff.html) at a table or _frozen hot
>> dogs_ (http://www.wikihow.com/Calculate-Pi-by-Throwing-Frozen-Hot-Dogs)
>> on
>> the floor. Party time!
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