On page 73, the characteristic resistance of free-space is defined as
the sq rt of the permeability of space devided by the dielectric
======================

Why must engineere resort to quoting from their worshipped Guru's who are
hardly more likely to be correct than they are themslves.

In all probability the recipient of the advice does't have a copy of the
sacred text. If he did he wouldn't be asking the question anyway. And it
must be extremely rare for anybody to spend weeks attempting to find a copy.
He knows he will have lost interest long before he finds one.

Do engineers these days, in their daily work, depend entirely on the 'gospel
truths' to be found in text books on their extensive book shelves without
much understanding of what its all about? It's a recipe for time-wasting
errors!

Or are they content to obtain money under false pretences?

Sorry about the diversion. I'm in that sort of mood tonight. I'm on Pinot
Noir 2001, red - a product of Romania, bottled before Romania became a EU
member. But it's no worse than the Italian, Spanish, French, or even the
Californian plonk!

Never sampled a 6-shooter, John Wayne, Texan vintage.
----
Reg.