nanog mailing list archives
Re: ATM (was Re: too many routes)
From: Rob Barron <rbarron () acrux net>
Date: Mon, 15 Sep 1997 15:04:52 -0500
Greg Shepherd wrote:
Electo-Magnetic Radiation. Electrons don't count as EMR do they though, (hell they have a mass!) so data in the form we transmit it down copper won't move at this speed will it?True, electrons have mass, but we are not 'transmitting' electrons. We are oscilating the electrons in the media. This oscilation creats EM energy which propogates down the media, in the form of photos, and will propogate at some percentage of c depending upon the media.
A good way to visualize this is to imagine a long pipe with an inside diameter just large enough to hold a ping pong ball. Imagine that the pipe is completely full of balls from one end to the other - put a ball in one end and a ball falls out the other end. It happens very rapidly (approx. 75% of the speed of light) even though the exact ball you put in didn't travel the entire distance. The balls represent electrons, BTW. -rob
Current thread:
- Re: ATM (was Re: too many routes), (continued)
- Re: ATM (was Re: too many routes) Vadim Antonov (Sep 11)
- Re: ATM (was Re: too many routes) Richard Irving (Sep 11)
- Re: ATM (was Re: too many routes) Michael Dillon (Sep 11)
- Re: ATM (was Re: too many routes) Vadim Antonov (Sep 11)
- Re: ATM (was Re: too many routes) Geoff Huston (Sep 14)
- Re: ATM (was Re: too many routes) Susan R. Harris (Sep 15)
- Re: ATM (was Re: too many routes) Ken Hays (Sep 15)
- Re: ATM (was Re: too many routes) Alec H. Peterson (Sep 15)
- Re: ATM (was Re: too many routes) Adrian Bool (Sep 15)
- Re: ATM (was Re: too many routes) Greg Shepherd (Sep 15)
- Re: ATM (was Re: too many routes) Rob Barron (Sep 15)
- Re: ATM (was Re: too many routes) Mark Kent (Sep 15)
- NANOG-PHYSICS (was Re: ATM (was Re: too many routes)) John A. Tamplin (Sep 15)
- Re: ATM (was Re: too many routes) Rob Barron (Sep 15)
- Physical transport media Michael Dillon (Sep 16)
- Re: Physical transport media Tim Gibson (Sep 16)
- Re: Physical transport media Michael Dillon (Sep 16)
- Re: Physical transport media Rob Barron (Sep 16)
- Message not available
- Re: Physical transport media Jay R. Ashworth (Sep 16)
- Message not available
- Re: NANOG-PHYSICS (was Re: ATM (was Re: too many routes)) Geoff Huston (Sep 15)
- Re: ATM (was Re: too many routes) Randy Bush (Sep 18)