Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!cs.utexas.edu!uunet!kitty!larry From: larry@kitty.UUCP (Larry Lippman) Newsgroups: sci.electronics Subject: Re: Tesla vs gauss, and other obscure units Summary: Arcane units... Message-ID: <3484@kitty.UUCP> Date: 4 Nov 89 02:29:40 GMT References: <30339@buckaroo.mips.COM> <1914@sactoh0.UUCP> <1989Nov2.024305.10583@utzoo.uucp> Organization: Recognition Research Corp., Clarence, NY Lines: 25 In article <1989Nov2.024305.10583@utzoo.uucp>, henry@utzoo.uucp (Henry Spencer) writes: > In article <30542@buckaroo.mips.COM> vaso@mips.COM (Vaso Bovan) writes: > >For bonus points, explain why the CGS electromagnetic unit of capacitance > >is the gigafarad. > > Now *there's* a filter capacitor! Yup, that's a pretty large unit. Actually, I've not heard of the term gigafarad, although the CGS emu unit of the abfarad would be 10^9 farads. I suspect that emu folks who deal in abvolts, abamperes, abohms, and abcoulombs would prefer to stay with abfarads instead of gigafarads, though. Now, for a unit that is truly bizarre, consider the reciprocal of capacitance, referred to as "elastance", which is measured in "darafs". I kid you not. For those Net readers who deal with purchasing departments, for some fun, next time you need a small ceramic disc capcitor, specify the capacitor value in elastance using the unit of gigadaraf. :-) <> Larry Lippman @ Recognition Research Corp. - Uniquex Corp. - Viatran Corp. <> UUCP {allegra|boulder|decvax|rutgers|watmath}!sunybcs!kitty!larry <> TEL 716/688-1231 | 716/773-1700 {hplabs|utzoo|uunet}!/ \uniquex!larry <> FAX 716/741-9635 | 716/773-2488 "Have you hugged your cat today?"