2002-07-13 I didn't say they were. If you read Jim's message and my response to it, you will understand what I was trying to say.
John ----- Original Message ----- From: "Joseph B. Reid" <[EMAIL PROTECTED]> To: "U.S. Metric Association" <[EMAIL PROTECTED]> Sent: Saturday, 2002-07-13 21:49 Subject: [USMA:21056] Re: Fwd: Energy unit TWH > John Kilopascal wrote in USMA 21030: > > > > >The hour not only is not a coherent unit with SI, it isn't even an SI unit. > >A unit such as the hour, that may have a special status (accepted) for use > >with SI, does not make it an SI unit. The resultant combination of an SI > >unit with a non-SI unit is still a non-SI unit. By your logic, we should > >accept the FFU as a part of SI because they can be combined with SI (farads > >per foot, grams per mile, watts per square inch, etc.). Of course, like the > >hour they would not be coherent and would relate with an odd conversion > >factor. > > >John > > > > The hour is listed in the BIPM bible, "Table 6. Non-SI units accepted for > use with the internatioinal system". The foot, mile and inch are not > listed anywhere in the BIPM bible. > > Joseph B.Reid > 17 Glebe Road West > Toronto M5P 1C8 Tel. 416 486-6071 >
