1 are = 100 m� 1 ha = 10 000 m� pronounced like "air" but nobody uses are! what kinda calc? casio? on a palm? ----- Original Message ----- From: "Carl Sorenson" <[EMAIL PROTECTED]> To: "U.S. Metric Association" <[EMAIL PROTECTED]> Sent: Wednesday, August 21, 2002 8:19 PM Subject: [USMA:21856] Re: Dual labeling, hectares
> David Owen wrote: > >The metric system would catch on faster if its evangelists were more > >sensitive to other traditions, and less unbending about deviations > >from theoretical consistency. > > I couldn't have said it better myself. I think all USMA members should > engrave this on a plaque and post it in a place they will see often. > > My XML page has moved to http://ssp-web.lib.byu.edu/measurement/ and it > now includes an option to specify significant figures. I can't > guarantee that the site will always be up. > > I have a question about the hectare. According to NIST at > http://physics.nist.gov/cuu/Units/outside.html, the hectare is one of > the "units outside the SI that are currently accepted for use with the > SI, subject to further review" whose "continued use is not encouraged." > The hectare seems to me to be a very useful unit. It seems more > practical for some purposes than square kilometers and square meters for > the same reason that the liter is more practical than cubic meters and > cubic millimeters. > > I presume that a hectare is 100 "ares" and an "are" is 100 square > meters. Is this correct? How is this unit pronounced? I have a > calculator with a conversion chart that refers to "acre" rather than > "are". Is this a typo? > > Carl >
