Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!ucbvax!agate!sprite.berkeley.edu!shirriff From: shirriff@sprite.berkeley.edu (Ken Shirriff) Newsgroups: sci.electronics Subject: Re: Gold saves energy. Keywords: gold Message-ID: <1991Jun5.052524.5825@agate.berkeley.edu> Date: 5 Jun 91 05:25:24 GMT References: <2788@umriscc.isc.umr.edu> <16640@darkstar.ucsc.edu> Sender: root@agate.berkeley.edu (Charlie Root) Organization: University of California, Berkeley Lines: 14 In article <16640@darkstar.ucsc.edu> haynes@felix.ucsc.edu (99700000) writes: >One table I have shows the resistivity of gold is 1.4 greater than copper, >and aluminum is 1.6 greater. I think this discussion of resistivity is missing the point; what matters is resistivity relative to cost. If material A costs 10 times as much as material B but has half the resistivity, you're probably better off making cables out of B that are twice as thick than using cables of A. (Assuming the material cost is the only significant cost.) In any case, I don't see what the sense of gold-plating the wires would be; that sounds like rec.audio voodoo. Ken Shirriff shirriff@sprite.Berkeley.EDU