Wimpie wrote:

snip

On an astronomical scale things are different.

Yep, and the discussion is not about pulsars or astronomical phenomena,
it is about magnets one can hold in their hand.



--
Jim Pennino

El 10-11-14 19:42, escribió:
wrote:

snip

On an astronomical scale things are different.

Yep, and the discussion is not about pulsars or astronomical phenomena,
it is about magnets one can hold in their hand.




Someone said that a rotating magnet produces an EM radiation field.
You said it is nonsense without arguments, a link to a useful
reference, or query.

There is nothing wrong with a jump to another branch of science (for
example astrophysics) to find out whether the statement is right or
wrong.


--
Wim
PA3DJS
Please remove abc first in case of PM

"Wimpie" wrote in message
...
El 10-11-14 19:42, escribió:
wrote:
On an astronomical scale things are different.
Yep, and the discussion is not about pulsars or astronomical phenomena,
it is about magnets one can hold in their hand.




Someone said that a rotating magnet produces an EM radiation field. You
said it is nonsense without arguments, a link to a useful reference, or
query.

And, of course, with the complete lack of the numbers for which he is
issuing challenges.

gareth wrote:
"Wimpie" wrote in message
...
El 10-11-14 19:42, escribi?:
wrote:
On an astronomical scale things are different.
Yep, and the discussion is not about pulsars or astronomical phenomena,
it is about magnets one can hold in their hand.




Someone said that a rotating magnet produces an EM radiation field. You
said it is nonsense without arguments, a link to a useful reference, or
query.

And, of course, with the complete lack of the numbers for which he is
issuing challenges.

How short is a "short antenna"?

What is the metric for "poor performance"?



--
Jim Pennino

Wimpie wrote:
El 10-11-14 19:42, escribió:
wrote:

snip

On an astronomical scale things are different.

Yep, and the discussion is not about pulsars or astronomical phenomena,
it is about magnets one can hold in their hand.




Someone said that a rotating magnet produces an EM radiation field.
You said it is nonsense without arguments, a link to a useful
reference, or query.

There is nothing wrong with a jump to another branch of science (for
example astrophysics) to find out whether the statement is right or
wrong.

You mean other than the fact that the context is immediately obvious?



--
Jim Pennino

Wimpie wrote in :

There is nothing wrong with a jump to another branch of science (for
example astrophysics) to find out whether the statement is right or
wrong.


I agree with that. It looks like a question of scale, not an absolute. I
don't know enough to say much, so I haven't, but if this is like relativistic
effects in that it is real, but extremely insignificant on the scales
presented for discussion, then arguing about it is surely proportional in its
significance.

El 11-11-14 12:43, Lostgallifreyan escribió:
wrote in :

There is nothing wrong with a jump to another branch of science (for
example astrophysics) to find out whether the statement is right or
wrong.


I agree with that. It looks like a question of scale, not an absolute. I
don't know enough to say much, so I haven't, but if this is like relativistic
effects in that it is real, but extremely insignificant on the scales
presented for discussion, then arguing about it is surely proportional in its
significance.

You are right, it is a matter of scale and especially rotation
frequency, but you don't need relativistic velocities to make it
happen. I posted an explanation based on two loops in the same topic.

--
Wim
PA3DJS
Please remove abc first in case of PM