Vlietstra, Bill & list:
There is one other reason why it might be difficult to remove the nautical
mile and the degree of >arc - they are universally understood.
While there is NO denial that survival of 'Yards, Mile & Nautical mile have
remained due to their linkage with the time unit *second*'; I have argued
in favour of The Metric Second (1973) that defined the 'Metric second linked
to Nautical Kiolmetre'. I now favour keeping the hour, as at present and
linking *decimal second - 36% of SI-atomic second & Nautival kilometre via
Earth dimension: 1/100th of arcAngle Pi/180*. Also, please see:
http://www.brijvij.com/clockface-n-earth.doc
The question is: What holds? Is it not time to correct the delibrate
'ignorance' of forefathers!
Regards,
Brij Bhushan Vij
(MJD 2454211)/630+D-112 G (Sunday, 2007 April 21H14:94(decimal) IST
Aa Nau Bhadra Kritvo Yantu Vishwatah -Rg Veda
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From: "Martin Vlietstra" <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
To: "U.S. Metric Association" <[email protected]>
Subject: [USMA:38458] Re: Virgin Galactic - Metric in Space?
Date: Fri, 20 Apr 2007 19:52:45 +0100
There is one other reason why it might be difficult to remove the nautical
mile and the degree of arc - they are universally understood.
----- Original Message -----
From: Bill Hooper
To: U.S. Metric Association
Sent: Friday, April 20, 2007 5:04 PM
Subject: [USMA:38456] Re: Virgin Galactic - Metric in Space?
On 2007 Apr 15 , at 8:59 PM, Paul Trusten wrote:
I think it would take a global convention, and many safety meetings,
to rid the earth of these units, and those of us on earth may not want to
give them up, given the relationship between the nautical mile and the
degree.
I've never understood why that connection is so terribly important,
especially since it is only correct for longitudes near the equator (as
well as all latitudes, I believe). But if you're flying/sailing at an angle
and not directly along a line of longitude or along a line of latitude near
the equator, the relationship is not so direct and therefore not so
helpful.
It seems to be a poor argument for using nautical miles instead of
kilometres.
Regards,
Bill Hooper
Fernandina Beach, Florida, USA
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