Stan¹s post is wise, well informed, and highly valued by me. I quibble, however, and point out classes of exception to his first sentence below.
Living things are made but not to engineering specs: people, for instance, or turnips. Also some things made by living things, such as nests or milk. ³But that¹s not manufacturing,² I hear you cry out. Very well, how about preindustrial manufacturing: thread from a spinning wheel, or butter from a churn, or cookies from my oven, or a mural? These can be measured in SI by an eccentric hobbyist. ===== From: Stan Jakuba <[email protected]> Reply-To: <[email protected]> Date: Sat, 1 Aug 2009 10:39:20 -0400 To: "U.S. Metric Association" <[email protected]> Subject: [USMA:45477] Re: centimetre versus metre Any manufactured product made anywhere is first portrayed on an engineering drawing.
