The choice of New kilogram based on between 'Carbon 12 or Plank's constant' has ben in consideration for a time longer than 25 years. In this connection may I recall some work done at Jadavpur University, Kolkatta and published by Bureau of Indian Standards; ISI Buln.; V25 N7; 1973; p.288 and my rejoinder ISI Bulln.; V26 N3 (12/12) 1974 March; p. 147 wherein mass of ONE kilogram worked to 5.1218536509 x 10^34 particle of Krypton 86, at defined hyperfine levels, using plank's constant and the value for time interval *metric second* - refer ISI Bulln.; V25 N4; 1973 April; p.152-57.
However, I switched myself to 'time interval & calendar reform'. The presnt work lead me to define new length unit *Metre New (m') as 1/10^5th of ONE degree (pi/180 radian) arcAngle that make the new metre longer by 1.112 times; and linked to decimal second (sd) = 36% of SI-atomic second*.
There has been some discussion on this list using: 'prefixed use of (kilo) and the mass unit (gram)'. I pointed that ALL CAPS be used to relate (kilogram = GRAM to mean 1000 g). Naturally, the value of new kilogram, its material, Symbol and choice of constant to be used remain the perview of concerned committee in BIPM and CGPM.
Brij Bhushan Vij <[EMAIL PROTECTED]>
20050304H0032(decimal) AM(IST)
Aa Nau Bhadra Kritvo Yantu Vishwatah -Rg Veda.
*****The New Calendar Rhyme*****
Thirty days in July, September:
April, June, November, December;
All the rest have thirty-one; accepting February alone:
Which hath but twenty-nine, to be (in) fine;
Till leap year gives the whole week READY:
Is it not time to MODIFY or change to make it perennial, Oh Daddy!
And make the calendar work with Leap Week Rule! ***** ***** ***** *****
From: Pierre Abbat <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: "U.S. Metric Association" <[email protected]> Subject: [USMA:32345] Re: kilogram redefinition Date: Thu, 3 Mar 2005 08:33:54 -0500
On Thursday 03 March 2005 07:57, Nat Hager III wrote: > Interesting article on kilogram redefinition.... > > http://www.wired.com/news/technology/0,1282,66727,00.html
Another article:
http://www.nist.gov/public_affairs/newsfromnist_redef_kilogram.htm
I've read elsewhere that they make a ball of silicon, measure its diameter,
measure the atomic spacing, and compute how many atoms are in it. For fixing
constants, the obvious choice would be carbon, since the mole is defined as
12 grams of carbon. The problem with carbon is that diamond is so hard that
you can only make polyhedra out of it, while graphite would rub off on
everything else.
As to the watt balance, it sounds like they're measuring the kilogram's weight, not its mass. Can someone clarify?
phma -- lo nu punji lo sovda be lo cipnrkuku kukuku zvati lo zdani be lo na'e cipnrkuku kuku
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