[time-nuts] gravity controlled pendulumn clock?

shalimr9 at gmail.com shalimr9 at gmail.com
Tue Dec 13 15:26:45 EST 2011


Having spent more of my adult life in the US than in France, and having been thoroughly exposed to both systems, I can testify (in my own name) that it is easier and faster to get a good approximation when doing mental arithmetic on engineering problems using the metric system than the imperial system. 

Of course, when you punch numbers in a calculator, the difference is less (even though there are fewer constants involved when using the metric system in general) so there is less typing involved.

If you don't care about being accurate, then the imperial system is fine :)
A gallon ( a yard, a pound,...) are not the same depending on where you are, and I am not talking about relativistic effects (or maybe I am...). Who cares how much is an ounce of water anyhow?

Didier KO4BB



Sent from my BlackBerry Wireless thingy while I do other things...

-----Original Message-----
From: Reeves Paul <Paul.Reeves at uk.thalesgroup.com>
Sender: time-nuts-bounces at febo.com
Date: Tue, 13 Dec 2011 14:37:44 
To: 'Discussion of precise time and frequency measurement'<time-nuts at febo.com>
Reply-To: Discussion of precise time and frequency measurement
	<time-nuts at febo.com>
Subject: Re: [time-nuts] gravity controlled pendulumn clock?

...and just what is 'less accurate' about pounds, feet, cubic yards etc?
The metric system (I use the term loosely) is ideal for those people who
cannot do mental arithmetic and can only shift decimal points. All
'imperial' measurements can be defined just as the metre, kilogramme (and
there is a dodgy one...)can be.
Remember that the metre is originally based on (very) inaccurate French
surveying techniques, a yard would do just as well. As a (somewhat
middle-aged) physicist I'm perfectly happy with either system - although the
imperial system is obviously better :-)  . Just look what happened when NASA
tried to use metric measurements for that Mars probe......
And does it really matter anyway?

Paul Reeves,   G8GJA 

-----Original Message-----
From: Jim Palfreyman [mailto:jim77742 at gmail.com] 
Sent: 13 December 2011 09:28
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] gravity controlled pendulumn clock?

Gentlemen, gentlemen and gentlemen!

We are time-nuts. Accuracy is paramount. We are scientists.

Please steer clear of pounds, feet, cubic yards and other such rubbish.

Scientists speak in metric and so should you.

Please.

Jim


On 13 December 2011 16:24, Don Latham <djl at montana.com> wrote:

>
>
> >or you can use a cubic yard of plain sand, about 2700# (depends on 
> >how
> moist it is)
> --
> "Neither the voice of authority nor the weight of reason and argument 
> are as significant as experiment, for thence comes quiet to the mind."
> R. Bacon
> "If you don't know what it is, don't poke it."
> Ghost in the Shell
>
>
> Dr. Don Latham AJ7LL
> Six Mile Systems LLP
> 17850 Six Mile Road
> POB 134
> Huson, MT, 59846
> VOX 406-626-4304
> www.lightningforensics.com
> www.sixmilesystems.com
>
>
>
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