Radio waves vs light waves

The size of waveguide is frequency dependant...

Then what, new, are you saying? Light is just like RF, just a different F,
therefore a different scale to see the effects. They have already made
antennas that emit light - they are very small, but they work the way radio
antennas work. I'd be surprised if a suitably scaled wave guide (of an
appropriate material) did NOT work with visible light.

I'm also not sure what you mean by:

Although light is not conducted like RF

Jose


--
(for Email, make the obvious changes in my address)

"Teacherjh" wrote in message
...


Metal is not a conductor of light.

Glass is not a conductor of RF.

Metal is not a conductor of light.
Glass is not a conductor of RF.


Nothing fundamental here. Glass is not a conductor of UV either. And
distinguish RF radiation (wide light) from RF electric signals (electrons
vibrating quickly, but not as fast as they would need to to transmit LF)

Wavelength dependence. It's what's for dinner.

Jose


--
(for Email, make the obvious changes in my address)

"Teacherjh" wrote in message
...

Metal is not a conductor of light.
Glass is not a conductor of RF.


Nothing fundamental here.

In fact, from an EM standpoint, that is the answer to the original poster's
question.

An iron nail will "focus" RF.

"Tarver Engineering" wrote in message
news
In fact, from an EM standpoint, that is the answer to the original
poster's
question.

An iron nail will "focus" RF.

I don't think Jay has iron nails for lenses in his eyes.

However, it wouldn't surprise me to find you have iron nails in your eyes.
It sure would explain a lot.

Jose: I'm not sure if you are just having fun with Tarver, or if you think
he's actually someone seriously worth engaging. If it's the latter,
however, I recommend you Google on his posts before you invest a lot of time
with him.

Pete

"Peter Duniho" wrote in message
...

snip
Jose: I'm not sure if you are just having fun with Tarver, or if you think
he's actually someone seriously worth engaging. If it's the latter,
however, I recommend you Google on his posts before you invest a lot of
time
with him.

Oh my, Peter is really having a meltdown over this thread.

"Peter Duniho" wrote:

Jose: I'm not sure if you are just having fun with Tarver, or if you think
he's actually someone seriously worth engaging. If it's the latter,
however, I recommend you Google on his posts before you invest a lot of time
with him.

Pete

Jose - In case you want confirmation, Pete's giving you good
advice here.
Todd Pattist
(Remove DONTSPAMME from address to email reply.)
___
Make a commitment to learn something from every flight.
Share what you learn.

"Todd Pattist" wrote in message
...
"Peter Duniho" wrote:

Jose: I'm not sure if you are just having fun with Tarver, or if you
think
he's actually someone seriously worth engaging. If it's the latter,
however, I recommend you Google on his posts before you invest a lot of
time
with him.

Jose - In case you want confirmation, Pete's giving you good
advice here.

Jose has been posting to me for years.

The difference being, Jose doesn't get his apnties in a wad when he learns
something.

"Peter Duniho" wrote:
An iron nail will "focus" RF.

I don't think Jay has iron nails for lenses in his eyes.

However, it wouldn't surprise me to find you have iron
nails in your eyes. It sure would explain a lot.

Haw! Good one.
--
Dan
C172RG at BFM
(remove pants to reply by email)

I'm not in favor of the term 'conductor', which implies electron flow, in
this discussion, as the electron is a phenomenon not directly responsible
for the principles of refraction/reflection of light...

Actually, metals do respond to light in several ways.. One is the
photoelectric effect there's your electron flow... And, thin layers of
metals are coated onto glass surfaces to alter it's refraction/reflection
characteristics to light, so metal can both refract and reflect at light
frequencies, depending upon the bulk state, without depending upon electron
flow...

And glass is too nonspecific a term, as various elements/molecules can be
incorporated into basic soda glass to alter it's transparency to EM energy
at various wavelengths ranging from rf to light and beyond...

The point you make about all material/physical response depending on
wavelength is right on... The only difference between the radio signal from
the local rock station and a gamma ray, is wave length...

Enough QED physics here - I'm off the topic...
denny


Metal is not a conductor of light.
Glass is not a conductor of RF.


Nothing fundamental here. Glass is not a conductor of UV either. And
distinguish RF radiation (wide light) from RF electric signals (electrons
vibrating quickly, but not as fast as they would need to to transmit LF)

Wavelength dependence. It's what's for dinner.

Jose


--
(for Email, make the obvious changes in my address)