Actually, I found mathematics (up through differential equations anyway) to
be quite understandable and straight forward. It is a very precise science
[language] with exacting rules that will explain things "exactly". No, I
don't consider myself a "math whiz", but I did have to take a lot of it for
my degree in Physics. People think themselves into believing that math is
difficult and therefore it becomes self-fulfilling.
And on the subject of Electrical Engineers - the best ones I have worked
with had done a lot of electronic tinkering and building (like "real" Hams)
when they were kids and then pursued a formal engineering degree in college.
The "worst" engineers I have encountered made the decision late in their
high school years to pursue an engineering career and had no hands-on
experience or intuitive feel for electronics at all.
Reid, K7YX
-----Original Message-----
From: Dan [mailto:tacquire@earthlink.net]
Sent: Wednesday, October 18, 2000 2:50 PM
Cc: 'tentec@contesting.com'
Subject: Re: [TenTec] electron flow vs. current flow
As if most people CAN or ever really DO understand that! :)
Dan
"Avila, Edward" wrote:
> Sherrill actually, you'll find (as I did 15 years ago) math is the more
> elegant and precise way of explaining electronics theory....usually no
more
> difficult than high school trig. /k6sdw
>
> -----Original Message-----
> From: Sherrill WATKINS [mailto:SEWATKINS@dgs.state.va.us]
> Sent: Wednesday, October 18, 2000 1:03 PM
> To: tacquire@earthlink.net
> Cc: tentec@contesting.com
> Subject: Re: [TenTec] electron flow vs. current flow
>
> Fascinating! However, the more I read about electrical theory the less I
> know and the more confused I become. Will someone please explain in
> common english and without math just how the flow of electric current
> through the ground causes a gas pipeline to corrode?? ( Next we will
tackle
> how a lightning strike is a complete circuit?) - Thank's- sherrill k4own
>
> >>> Dan <tacquire@earthlink.net> 10/18/00 03:52PM >>>
>
> In reality lightning is a complete loop like any circuit. Don't know if
> this has been mentioned here before or not but there is even positive and
> negative lightning,, so named because of where it initiates, positive
earth
> to negative clouds or the other way around. In other words whether or not
it
> starts from the clounds goes to earth and comes back, or starts from earth
> goes to clouds and comes back.
>
> Neat stuff anyway :)
>
> Sherrill WATKINS wrote:
>
> > Actually, I believe it was Benjamin Franklin who postulated in about
circa
> 1750 that electricity flows because of an attraction from positive to
> negative poles. Also, it was Franklin that postulated the theory
(correct)
> that lightning is the flow of electric charges and therefore offered the
> first scientific explanation that lightning is the flow of electricity.
> Franklin also postulated correctly that lightning will favor an attraction
> to a point over a sphere or flat surface and from this he correctly
> developed the theory of the lightning rod, now called the "air terminal".
> However, my cathodic protection engineer friend is adamant that current
> flows from positive to negative. - sherrill k4own
> >
> > >>> "Dan Cox" <tacquire@earthlink.net> 10/18/00 02:43PM >>>
> > hehe, it's really amazing that the myth ever got started. Supposedly it
> was
> > easier around the turn of the century to explain electricity if you
> > explained it in the reverse of how it actually works.. Imagine these
> > people's confusion when they started learning about vacuum tubes for
> > instance! The logic just DOES NOT work!!
> >
> > ----- Original Message -----
> > From: "Sherrill WATKINS" <SEWATKINS@dgs.state.va.us>
> > To: <tentec@contesting.com>
> > Sent: Wednesday, October 18, 2000 10:47 AM
> > Subject: [TenTec] electron flow vs. current flow
> >
> > >
> > > A friend of mine, who is a cathodic protection engineer, states that
in
> > the cathodic (corrosion) protection business, he installs sacrificial
> > anodes on buried gas piplines to protect against corrosion. He also
> states
> > that current flows from the positive to the negative pole but electrons
> > flow from the negative to the positive pole! - Sherrill k4own
> > >
> > >
> > > --
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> > > Problems: owner-tentec@contesting.com
> > >
> > >
>
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