Re: Physics of Wireless Transmission

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Mddeming@xxxxxxx 

Hi Gerry, Godfrey, All,

    A couple of things that I picked up in School too many decades ago:

1) There is no universal inertial reference frame.
2) There is no such thing as an object at rest. There are merely 
things which, at the gross level of our human senses, appear not to 
have any motion. This includes both the observer and the observed. 
Ergo, all real charged objects have B and H fields; one or the other 
may be too small to measure conveniently in certain reference frames. 
Like the perfect circle, a "pure E field" is a mental construct that 
doesn't exist in our universe.
3) "'Small enough to ignore for practical purposes'  being equivalent 
to 'Doesn't Exist'" is one of the concepts that distinguishes 
Engineering from Physics.
4) Conceptual headaches and indigestion are inversely proportional to 
an object's size and directly proportional to the square of its 
(relative) velocity.
5) Maxwell's equations hold under relativistic transformation.

Happy "Bromo" to all!

Matt D.





In a message dated 4/22/06 11:47:38 A.M. Eastern Daylight Time, 
tesla@xxxxxxxxxx writes:
Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>

Hi Godfrey,

That was what I was suggesting.  It was a fleeting thought. Special
Relativity should suffice I would think :-))  My book
"Electromagnetic Waves and Radiating Systems" by Jordan Balmain has a
section on the relativity of Maxwells equations, but I havent studied
this.  What is the correct answer??

Gerry R.