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Richard Harrison June 29th 07 03:24 PM

Water burns!
 
Mike, G0ULI wrote:
"Looking at my energy bills, it just dissipates."

Mike was responding to Cecil`s question:
"Does energy per unit time propagate?"

Of course it does. Energy at point A flows to point B where it does
work. The rate at which energy flows is power.

My ultimate authority for radio and electronics is Terman, and his 4th
edition of "Radio and Electronic Engineering" published in 1955. It is
my technical bible. On page 904 Terman discusses the Sommerfeld analysis
of ground-wave propagation. Terman says:

"The field strength at unit distance in Eq. (22-1) depends on power
radiated by the transmitting antenna, and the directivity of the antenna
in the vertical and horizontal planes."

The IEEE dictionary won`t dispute Terman. If it does, it needs
correction.

Best regards, Richard Harrison, KB5WZI


Keith Dysart[_2_] June 29th 07 03:55 PM

Water burns!
 
On Jun 29, 10:24 am, (Richard Harrison)
wrote:
The IEEE dictionary won`t dispute Terman. If it does, it needs
correction.


The IEEE and Terman are both reputable sources and
it seems unlikely that they would have substantive
disagreements.

But it is always possible, for those with the desire,
to manufacture dispute by the careful selection of
sentence fragments.

The defense is to be very cautious about trusting
the veracity of quotes from sources with questionable
reputations and motives.

....Keith


art June 29th 07 04:22 PM

Water burns!
 
On 29 Jun, 07:55, Keith Dysart wrote:
On Jun 29, 10:24 am, (Richard Harrison)
wrote:

The IEEE dictionary won`t dispute Terman. If it does, it needs
correction.


The IEEE and Terman are both reputable sources and
it seems unlikely that they would have substantive
disagreements.

But it is always possible, for those with the desire,
to manufacture dispute by the careful selection of
sentence fragments.

The defense is to be very cautious about trusting
the veracity of quotes from sources with questionable
reputations and motives.

...Keith


A man after my own heart!
This is where the difference in
"learning" and "undestanding" comes to the fore
Art Unwin KB9MZ....XG


John Smith I June 29th 07 05:35 PM

Water burns!
 
Keith Dysart wrote:

...
The defense is to be very cautious about trusting
the veracity of quotes from sources with questionable
reputations and motives.

...Keith


I don't believe Terman would have minded being "questioned" at all. I
think he did the best which could have been done for his time, and given
what was available then. I believe he would have loved to set any
errors in accepted principals correct--I don't believe he ever stopped
looking. He just couldn't do everything, as especially not all at once!

However, the shallow minded who follow in his shadow, who set up a
religion around his work. Who canonize his book, who memorize equations
and formulas which only apply to narrow applications of very specific
physical arrangements ... they can do little better than defend what he
left, they certainly are unable to add to it, and probably lack the
where-will-all to even question it logically!

JS


John Smith I June 29th 07 09:08 PM

Water burns!
 
Richard Harrison wrote:
John Smith just called me shallow minded. ...


Best regards, Richard Harrison, KB5WZI


Richard:

I did NO such thing, if you need an enemy, pick another, I make a better
co-explorer ...

If I were to set about a list of "Old Dogs Who Can't Learn New Tricks",
you'd be way down on it ... I have no idea what you do in your spare
time; I will give you the benefit of the doubt and believe you examine
the new closely--and certainly do so before throwing out the old!

Regards,
JS



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