Cecil Moore wrote:
On Jun 3, 2:13 pm, "Tom Donaly" wrote:
Whaddaya mean, "believe in"? If I pray to the waves, will they
bring good luck?

Many of the posters here believe that reflected EM waves don't
actually exist
in reality. Their belief systems are interferring with their
understanding of physics.
And yes, it might as well be a religion to which one prays. I know a
number of posters
who pray that reflected waves don't exist because their entire house-
of-cards will
come tumblinging down if reflected EM waves actually exist in reality
- while obeying
all the boundary conditions that Mother Nature dictates for EM waves.
Hopefully,
you are not one of those individuals.
--
73, Cecil, w5dxp.com


Maybe you'll tell me who you think thinks waves of any sort can't
be reflected. I haven't run into anyone who thinks EM waves can't be
reflected, refracted, etc. Maybe there's a misunderstanding somewhere.
73,
Tom Donaly, KA6RUH

Tom Donaly wrote:

...
Maybe you'll tell me who you think thinks waves of any sort can't
be reflected. I haven't run into anyone who thinks EM waves can't be
reflected, refracted, etc. Maybe there's a misunderstanding somewhere.
73,
Tom Donaly, KA6RUH

Very good, and oh so relevant!

Krist, even the force on a tennis ball is "reflected" back off a wall!

Better question would be, "What can't be reflected?" (well, ok, high
radiation is NOT easy to reflect!)

JS

On Jun 4, 5:39 pm, "Tom Donaly" wrote:
Maybe you'll tell me who you think thinks waves of any sort can't
be reflected. I haven't run into anyone who thinks EM waves can't be
reflected, refracted, etc. Maybe there's a misunderstanding somewhere.

I don't want to get personal but if you have followed the reflected
wave arguments, you know who they are. Some simple true/false
questions will highlight the argument.

1. Do reflected EM waves actually exist in reality?
2. Is the reflected EM wave a traveling wave?
3. Does a reflected EM wave obey the rules for traveling waves?
4. Do reflected EM waves contain ExB joules/second?
5. Do reflected EM waves have any effect on forward waves in a
constant Z0 environment?
6. Do standing EM waves superceed and obsolete the component traveling
waves?
7. Does reflected EM energy violate the laws of physics by standing
still within the standing wave?
8. Does reflected EM energy violate the laws of physics by just
"sloshing" around?
9. Does reflected EM energy travel in the reverse direction at VF(c)
until it encounters an impedance discontinuity?
10. Is it valid to consider the forward EM traveling wave and the
reflected EM traveling wave separately and then superpose the
resulting fields (voltages, currents)?
11. Are the decades-old EM wave intensity equations from the field of
optics valid for an RF EM wave analysis?
12. Can standing wave current be used to determine the delay through a
75m mobile loading coil?
13. Is the current "drop" through that loading coil just an illusion
caused by superposition of forward and reflected currents?
14. Would the delay be different if only a forward traveling wave was
used for measurement purposes?
--
73, Cecil, w5dxp.com

Cecil Moore wrote:

On Jun 4, 5:39 pm, "Tom Donaly" wrote:

Maybe you'll tell me who you think thinks waves of any sort can't
be reflected. I haven't run into anyone who thinks EM waves can't be
reflected, refracted, etc. Maybe there's a misunderstanding somewhere.


I don't want to get personal but if you have followed the reflected
wave arguments, you know who they are. Some simple true/false
questions will highlight the argument.

1. Do reflected EM waves actually exist in reality?
2. Is the reflected EM wave a traveling wave?
3. Does a reflected EM wave obey the rules for traveling waves?
4. Do reflected EM waves contain ExB joules/second?
5. Do reflected EM waves have any effect on forward waves in a
constant Z0 environment?
6. Do standing EM waves superceed and obsolete the component traveling
waves?
7. Does reflected EM energy violate the laws of physics by standing
still within the standing wave?
8. Does reflected EM energy violate the laws of physics by just
"sloshing" around?
9. Does reflected EM energy travel in the reverse direction at VF(c)
until it encounters an impedance discontinuity?
10. Is it valid to consider the forward EM traveling wave and the
reflected EM traveling wave separately and then superpose the
resulting fields (voltages, currents)?
11. Are the decades-old EM wave intensity equations from the field of
optics valid for an RF EM wave analysis?
12. Can standing wave current be used to determine the delay through a
75m mobile loading coil?
13. Is the current "drop" through that loading coil just an illusion
caused by superposition of forward and reflected currents?
14. Would the delay be different if only a forward traveling wave was
used for measurement purposes?

It's ridiculous to assert that someone "thinks EM waves can't be
reflected" based on the fact that they might happen to take issue with
one or more of your speculations on the laundry list shown above.

ac6xg

Jim Kelley wrote:
It's ridiculous to assert that someone "thinks EM waves can't be
reflected" based on the fact that they might happen to take issue with
one or more of your speculations on the laundry list shown above.

You obviously have not been following the arguments.
--
73, Cecil http://www.w5dxp.com

Cecil Moore wrote:
Jim Kelley wrote:
It's ridiculous to assert that someone "thinks EM waves can't be
reflected" based on the fact that they might happen to take issue with
one or more of your speculations on the laundry list shown above.

You obviously have not been following the arguments.

Neither have you, Cecil.
73,
Tom Donaly, KA6RUH

Tom Donaly wrote:
Cecil Moore wrote:
You obviously have not been following the arguments.

Neither have you, Cecil.

Tom, please inquire about reflected energy just "sloshing"
around rather than traveling end to end at a VF(c) speed.
--
73, Cecil, w5dxp.com

On Jun 5, 11:40 am, Cecil Moore wrote:
On Jun 4, 5:39 pm, "Tom Donaly" wrote:

Maybe you'll tell me who you think thinks waves of any sort can't
be reflected. I haven't run into anyone who thinks EM waves can't be
reflected, refracted, etc. Maybe there's a misunderstanding somewhere.

I don't want to get personal but if you have followed the reflected
wave arguments, you know who they are. Some simple true/false
questions will highlight the argument.

1. Do reflected EM waves actually exist in reality?
2. Is the reflected EM wave a traveling wave?
3. Does a reflected EM wave obey the rules for traveling waves?
4. Do reflected EM waves contain ExB joules/second?
5. Do reflected EM waves have any effect on forward waves in a
constant Z0 environment?
6. Do standing EM waves superceed and obsolete the component traveling
waves?
7. Does reflected EM energy violate the laws of physics by standing
still within the standing wave?
8. Does reflected EM energy violate the laws of physics by just
"sloshing" around?
9. Does reflected EM energy travel in the reverse direction at VF(c)
until it encounters an impedance discontinuity?
10. Is it valid to consider the forward EM traveling wave and the
reflected EM traveling wave separately and then superpose the
resulting fields (voltages, currents)?
11. Are the decades-old EM wave intensity equations from the field of
optics valid for an RF EM wave analysis?
12. Can standing wave current be used to determine the delay through a
75m mobile loading coil?
13. Is the current "drop" through that loading coil just an illusion
caused by superposition of forward and reflected currents?
14. Would the delay be different if only a forward traveling wave was
used for measurement purposes?
--
73, Cecil, w5dxp.com

An excellent list of questions, but you left out a few:

15. Can superposition be used in the analysis of linear
time invariant circuits?
16. Does P equal E times I?
17. Can source (or output) impedance be used to compute the
reflection occuring at the generator?
18. Does a directional wattmeter MEASURE power?
19. Do reflections occur at places other than physical
impedance discontinuities?

....Keith