[time-nuts] OT Prototype Boards

[J. Forster]

It was a JOKE!!!

And, in fact, pi IS a definition: the ratio of the circumferance to the
diameter of a circle - whether it's measured in cubits, furlongs,
nanometers, or light years.

-John

==============


> Your "pi" example does not work.  Pi is not a definition.   the length of
> an inch has changed many times over the centuries so there have been many
> definitions.  So yes 2.54 mm is the current definition but there are
> others
> and you only have to go mack to 1958 to find that another definition of
> the
> inch was used.
>
> Yes the length of the inch actally changed.  So in theory any ruller or
> machine tools or micrometer made in work war II era has been wrong for a
> long time.   But fortunately the change was tiny at the 1/10,000th level
>
> The lllength of the inch, foot, yard and so on all changed a little over
> 50
> years ago so that we could have exact and easy conversions to and from the
> rest of the world's units.
>
>
> On Tue, Jun 25, 2013 at 10:52 AM, J. Forster <jfor at quikus.com> wrote:
>
>> No. It's THE definition...  there is only one.
>>
>> It's not like Pi, which equals 3 for small circles.
>>
>> -John
>>
>> ===============
>>
>>
>>
>> > In message
>> > <CAF_SE-Av85UZWvKP2ZeiL10DcDeohROj0WNe1D-13vaWcWtKeA at mail.gmail.com>
>> > , Robert Darlington writes:
>> >
>> >>Machinists know that 1 inch is exactly 2.54cm or 25.4mm.  It's a
>> >>definition, not a coincidence.
>> >
>> > The crucial word in that statement being "a" :-)
>> >
>> > --
>> > Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
>> > phk at FreeBSD.ORG         | TCP/IP since RFC 956
>> > FreeBSD committer       | BSD since 4.3-tahoe
>> > Never attribute to malice what can adequately be explained by
>> > incompetence.
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>>
>>
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>
>
>
> --
>
> Chris Albertson
> Redondo Beach, California
>