Xref: utzoo sci.electronics:3094 sci.astro:2224 comp.dcom.modems:1975 comp.misc:2580 rec.ham-radio:5075 Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!nrl-cmf!ames!ll-xn!oberon!sdcrdcf!otto!glenn From: glenn@otto.lvsun.com (Glenn Scott) Newsgroups: sci.electronics,sci.astro,comp.dcom.modems,comp.misc,rec.ham-radio Subject: Re: N.B.S. Time Service Keywords: Time Ticks Message-ID: <588@otto.lvsun.com> Date: 7 Jun 88 23:18:15 GMT References: <455@trane.UUCP> <4691@watcgl.waterloo.edu> <585@otto.COM> <3335@phri.UUCP> Reply-To: glenn@otto.lvsun.com (Glenn Scott) Organization: Las Vegas Sun Lines: 24 In article <3335@phri.UUCP>, roy@phri.UUCP (Roy Smith) writes: >glenn@otto.UUCP (Glenn Scott) writes: > In addition, the "speed of light delay" via satellite shouldn't be much > different than the speed of light delay over a copper wire... > If I call Colorado from New York and get a land line, I'm going over >maybe 3-4000 miles of path (doesn't make much difference if it's copper >wire, microwave, or fiber; in reality it's probably a combination of all >three). Ah, well, then I don't think we're really talking about "land-lines" then. Ten years ago, during college, I worked for "The Phone Company" as a switchman. Way back then "land-line" meant metal. Specifically, no multiplexing (no microwave, no fiber, no satellite). But in any case, the receiver doesn't determine the routing. If an ordinary consumer makes a call it is routed via the most viable route. Glenn PS: There is a difference between copper wire, and microwave or fiber. Microwave and fiber are multiplexed and thus have some scheduling delays, albeit small.