From phma@oltronics.net Sat Jul 29 19:04:44 2000 Return-Path: Received: (qmail 18322 invoked from network); 30 Jul 2000 02:04:43 -0000 Received: from unknown (10.1.10.26) by m2.onelist.org with QMQP; 30 Jul 2000 02:04:43 -0000 Received: from unknown (HELO mail.oltronics.net) (204.213.85.8) by mta1 with SMTP; 30 Jul 2000 02:04:43 -0000 Received: from neofelis (root@localhost) by mail.oltronics.net (8.9.3/8.9.3) with SMTP id WAA09882 for ; Sat, 29 Jul 2000 22:30:18 -0400 X-BlackMail: 207.15.133.35, neofelis, , 207.15.133.35 X-Authenticated-Timestamp: 22:30:19(EDT) on July 29, 2000 To: lojban@egroups.com Subject: Re: [lojban] force and pressure Date: Sat, 29 Jul 2000 22:00:46 -0400 X-Mailer: KMail [version 1.0.28] Content-Type: text/plain References: In-Reply-To: MIME-Version: 1.0 Message-Id: <00072922043900.19701@neofelis> Content-Transfer-Encoding: 8bit From: Pierre Abbat >>There is at least one dimensionness (?) that corresponds to two different >>quantities. The dot product of a newton and a meter is a joule of energy; >>the >>cross product is a newton-meter of torque. > >Yes, although calling them different quantities is a little >arbitrary. It's like saying that width and displacement are >different quantities. They are, but so what? Width and displacement are the same quantity. Heat, energy, and work are the same quantity. Energy and torque, though they have the same dimensions, are NOT the same quantity; energy is a scalar, torque a vector. >>There are dynes and ergs. There are also dunes in ergs, but if I went >>there, >>I'd be deserting you. > >where is ergs? In the Sahara. phma