21.464 g/cm�. Given that I haven't checked the precise dimensions, that's probably more precise than your "about" justifies.
Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator] >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >Behalf Of James R. Frysinger >Sent: Thursday, March 03, 2005 20:21 >To: U.S. Metric Association >Subject: [USMA:32355] Re: kilogram redefinition > > >On Thursday 03 March 2005 20:10, Pierre Abbat wrote: >.... >> If I had written the article, I'd have given the height - all >kilograms are >> about 2.2 pounds, but a kilogram of PtIr is smaller than a kilogram of >> water. > > The kilogram prototype is a cylinder about 39 mm in >diameter and about 39 mm >tall. I'll let you have the fun of calculating the density yourself. Yep, >it's pretty dense. > >Jim > >-- >James R. Frysinger >Lifetime Certified Advanced Metrication Specialist >Senior Member, IEEE > >http://www.cofc.edu/~frysingj >[EMAIL PROTECTED] >[EMAIL PROTECTED] > >Office: > Physics Lab Manager, Lecturer > Dept. of Physics and Astronomy > University/College of Charleston > 66 George Street > Charleston, SC 29424 > 843.953.7644 (phone) > 843.953.4824 (FAX) > >Home: > 10 Captiva Row > Charleston, SC 29407 > 843.225.0805 >
