Vaccum should of course be Vacuum. My typing fingers betrayed me
-Original Message-
From: O'Shaughnessy, Paul [mailto:paul_oshaughne...@affymetrix.com]
Sent: Friday, December 01, 2000 10:28 AM
To: 'george_t...@dell.com'; brian_ku...@leco.com;
emc-p...@majordomo.ieee.org
Subject: RE:
Wow! Great Responses. So much history I was not aware of. Great analogies too.
Thanks to everyone who responded.
Brian
---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
To cancel your
This question harkens back to the days when it was supposed that there was
some ether or etherial material, through which EM waves must propagate.
You can still hear people occasionally say that a message arrived through
the ether. It was a (logical at the time) extrapolation from sound waves,
Just a small point about Black Holes. Yes, just a few years ago they were the
stuff of science fiction but are now accepted as fact by mainstream science. As
a Black Hole is basically a region of very high density, then surely it is the
very OPPOSITE of a true vacuum?
Andy.
--
From:
yes you are right on that, the behavior of the energy with distance depends
on the source.
Vicente RodrÃguez, Ph.D., E.I.T.
RF/Electromagnetics Engineer
ETS-Lindgren
(an ESCO Company)
P.O.Box 80589, Austin TX 78708-0589
phone 512.835.4684 x648
fax 512.835.4729
vicente.rodrig...@emctest.com
An excellent explanation -- I've seen these issues explained many times,
either over simplified or overly detailed. The explanation below is a superb
balance. Thanks
Michael Hopkins
KeyTek
-Original Message-
From: Nick Rouse [mailto:100626.3...@compuserve.com]
Sent: Thursday,
Brian,
I really liked Nick Rouse's explanation for completeness. I'd like to
extract maybe a simplification of the self inducing part.
It was explained to me that E-M fields are sourced from charges that
accelerate. When charges are stationary or when they are moving with
constant velocity,
You can access most of the TCAM documents through the UK's DTI Technical
Advice and Policy Committee (TAPC) RTTE website:
http://www.tapc.org.uk/RTTE/Index.html
Regards
Andrea Bishop
BABT Product Service
-Original Message-
From: Kevin Harris [mailto:harr...@dscltd.com]
Sent: 30
All,
We've run across a customer requirement which includes testing to paragraphs
4.9.1 and 4.9.2 of ETS 300 132-2. We've had a problem with this test. I've
searched around on and off for a couple of days for a solution. I know that
the guys at the lab follow this group, but now I must
RF, meaning radio frequency radiation, is electromagnetic
radiation just like light. At the classical level this can be
thought of as an electrostatic field that is in a direction that
is at right angles to the direction the radiation is propagating.
Coupled to this is a magnetic that is at
Wasn't going to weigh in on this one, but there are a few inaccuracies here
which require correction. No criticism implied, I can't remember where I
placed my keys five minutes ago; I will not criticize a lapse of memory over
40 years.
Energy or power density from a point source spreading out
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