A small riddle, just for fun
 

On Feb 13, 10:18*am, "Szczepan Bialek" wrote:
Uzytkownik "tom" napisal w wiadomoscinews:4d572454$0$87583$8046368a@newsreade r.iphouse.net...

On 2/12/2011 12:06 PM, Szczepan Bialek wrote:

Of course. But the longitudine waves transport mass (electrons) and are
not
symmetric. Jumping off is stronger than sucking *back.

Tesla is not applicable here, an antenna is not a cathode and does not act
like one. *Neither is it made of a material that is cathodic at room
temperature.

Field emission works at each temperature and each material. It is voltage
and temperature dependent. Also: "How would the ideal field emitter look
like? It should be very long and very thin, made of conductive material with
high mechanical strength, be robust, and cheap and easy to process."



So where else does it say the current is asymmetrical?

The emission current from AC lines is. But there the electrons flow to
ground. In the lines no open circuit.
In open circuit *the voltage is doubled (at least) at the end. If some
electrons jump off than the suction voltage is lower. If an antenna radiate
the VSWR is low = some electrons do not come back.

In the giant Warsaw dipole was: "In the lower half of the mast, there was a
vertical steel tube, attached to the mast's outer structure with large
insulators. This tube was grounded at the bottom, and connected electrically
to the mast structure at half the total height. This technique works by
applying a DC ground at a point of minimum radiofrequency voltage,
conducting static charge to ground without diminishing the radio energy.
Static electrical charge can build up to high values, even at times of no
thunderstorm activity, when such tall structures are insulated from ground.

Guess why the static charge is build up?

S*

if there is any breeze: http://en.wikipedia.org/wiki/Triboelectric_effect

or just the clear air electric field: "In fine weather, the potential
increases with altitude at the rate, according to some writers, of
about 30 volts per foot (100 V/m).[3]"
from http://en.wikipedia.org/wiki/Atmospheric_electricity

A small riddle, just for fun
 

On Feb 13, 10:38*am, "Szczepan Bialek" wrote:
Uzytkownik "tom" napisal w wiadomoscinews:4d57257a$0$6699$8046368a@newsreader .iphouse.net...



On 2/12/2011 12:23 PM, Szczepan Bialek wrote:
* *napisal w wiadomosci
....
On Feb 12, 8:55 am, "Szczepan *wrote:

The field emission take place where the voltage exists. But at the end
the
voltage is doubled (standing wave). So the strong radiation is only from
the
nodes.
S*

so if there is only a single high voltage point at the top how is it
vertically polarized and how does it radiate at all without the other
half of the dipole?

You probably have seen the CB radio. On the end of the whip is alternate
high voltage. It radiate the longitudinal electric waves. The other half
of
a dipole is chassis (car). Is there any polarisation?
S*

There sure is. *It is typical to see 20dB or so loss when you rotate a
dipole receiving from a vertical ground plane CB antenna from vertical to
horizontal.

The transmmiting "cold catode" is thin and long. It radiate the alternate
electric field perpendicular to its length. Receiving antenna also have the
best direction to collect electrons.



From a car it may not be truly vertical because of the body, but it is
still easy to detect.

Polarisation is linear, circular, eleptical. Could you produce it by
rotation of monopole?
S*

you can create any direction of linear polarization by rotating a
monopole.

A small riddle, just for fun
 

Uzytkownik "K1TTT" napisal w wiadomosci
...
On Feb 13, 10:18 am, "Szczepan Bialek" wrote:

In the giant Warsaw dipole was: "In the lower half of the mast, there was
a
vertical steel tube, attached to the mast's outer structure with large
insulators. This tube was grounded at the bottom, and connected
electrically
to the mast structure at half the total height. This technique works by
applying a DC ground at a point of minimum radiofrequency voltage,
conducting static charge to ground without diminishing the radio energy.
Static electrical charge can build up to high values, even at times of no
thunderstorm activity, when such tall structures are insulated from
ground.

Guess why the static charge is build up?

S*

if there is any breeze: http://en.wikipedia.org/wiki/Triboelectric_effect

or just the clear air electric field: "In fine weather, the potential
increases with altitude at the rate, according to some writers, of
about 30 volts per foot (100 V/m).[3]"
from http://en.wikipedia.org/wiki/Atmospheric_electricity

You invented a new power plant. But what voltage will be there in fine
weather? In conductor must be the same. Will it be like at bottom or as at
the top or in the middle?

The sentence "when such tall structures are insulated from ground" is wrong.
Should be: "when such dipole works".
S*

A small riddle, just for fun
 

On Feb 14, 10:26*am, "Szczepan Bialek" wrote:
Uzytkownik "K1TTT" napisal w ...
On Feb 13, 10:18 am, "Szczepan Bialek" wrote:





In the giant Warsaw dipole was: "In the lower half of the mast, there was
a
vertical steel tube, attached to the mast's outer structure with large
insulators. This tube was grounded at the bottom, and connected
electrically
to the mast structure at half the total height. This technique works by
applying a DC ground at a point of minimum radiofrequency voltage,
conducting static charge to ground without diminishing the radio energy..
Static electrical charge can build up to high values, even at times of no
thunderstorm activity, when such tall structures are insulated from
ground.

Guess why the static charge is build up?

S*
if there is any breeze:http://en.wikipedia.org/wiki/Triboelectric_effect
or just the clear air electric field: "In fine weather, the potential

increases with altitude at the rate, according to some writers, of
about 30 volts per foot (100 V/m).[3]"
fromhttp://en.wikipedia.org/wiki/Atmospheric_electricity

You invented a new power plant. But what voltage will be there in fine
weather? In conductor must be the same. *Will it be like at bottom or as at
the top or in the middle?

The sentence "when such tall structures are insulated from ground" is wrong.
Should be: "when such *dipole works".
S*



try it and see... tie a wire to a kite and fly it up nice and high and
measure the dc voltage to ground. you can also draw current from it.
many years ago i built a motor that was powered by only a wire
sticking up about 20' in the clear air... very interesting free
power! but very dangerous near thunderstorm!

A small riddle, just for fun
 

"K1TTT" napisal w wiadomosci
...
On Feb 14, 10:26 am, "Szczepan Bialek" wrote:
In the giant Warsaw dipole was: "In the lower half of the mast, there
was
a
vertical steel tube, attached to the mast's outer structure with large
insulators. This tube was grounded at the bottom, and connected
electrically
to the mast structure at half the total height. This technique works by
applying a DC ground at a point of minimum radiofrequency voltage,
conducting static charge to ground without diminishing the radio energy.
Static electrical charge can build up to high values, even at times of
no
thunderstorm activity, when such tall structures are insulated from
ground.


The sentence "when such tall structures are insulated from ground" is
wrong.
Should be: "when such dipole works".
S*



try it and see... tie a wire to a kite and fly it up nice and high and
measure the dc voltage to ground. you can also draw current from it.
many years ago i built a motor that was powered by only a wire
sticking up about 20' in the clear air... very interesting free
power! but very dangerous near thunderstorm!

In clear air the electrons migrate up. Under a cloud down.
The direction of DC is weather dependent.

Of course sometimes no DC at all.

It is interesting that a wire sticking up about 20' produces DC but your
antennas no.

Transmitting antenna is like electron gun.
S*

A small riddle, just for fun
 

Szczepan Bialek wrote:

Transmitting antenna is like electron gun.
S*



SB,

If electrons leaving the antenna are what makes it work, then please
explain how an antenna coated by an insulator like plastic or fiberglass
works.


Thanks,

A small riddle, just for fun
 

"joe" napisal w wiadomosci
...
Szczepan Bialek wrote:

Transmitting antenna is like electron gun.

If electrons leaving the antenna are what makes it work, then please
explain how an antenna coated by an insulator like plastic or fiberglass
works.

Permittivity is material and frequency dependent. The space and an insulator
like ice and plastic or fiberglass have small value.
Water has 81.

An antenna covered with ice works. But if the ice is melting and the all
pores are filled with water the antenna do not work.

The key issue is the net DC current. Of course as a result of ansymmetry.
More electrons flow up then come back.

This net result is easy to measure.
S*
,

A small riddle, just for fun
 

On Feb 18, 6:20*pm, "Szczepan Bialek" wrote:
*"joe" napisal w ...

Szczepan Bialek wrote:

Transmitting antenna is like electron gun.

If electrons leaving the antenna are what makes it work, then please
explain how an antenna coated by an insulator like plastic or fiberglass
works.

Permittivity is material and frequency dependent. The space and an insulator
like ice and plastic or fiberglass have small value.
Water has 81.

An antenna covered with ice works. But if the ice is melting and the all
pores are filled with water the antenna do not work.

The key issue is the net DC current. Of course as a result of ansymmetry.
More electrons flow up then come back.

This net result is easy to measure.
S*
,

antennas submerged in salt water work, how does that happen??

A small riddle, just for fun
 

"K1TTT" napisal w wiadomosci
...
On Feb 18, 6:20 pm, "Szczepan Bialek" wrote:
"
An antenna covered with ice works. But if the ice is melting and the all
pores are filled with water the antenna do not work.

antennas submerged in salt water work, how does that happen??

It was here about antennas made of salt water.
Is it a normal practice to make an underwater antennas?
S*

A small riddle, just for fun
 

On Feb 19, 9:33*am, "Szczepan Bialek" wrote:
"K1TTT" napisal w ...
On Feb 18, 6:20 pm, "Szczepan Bialek" wrote:

"
An antenna covered with ice works. But if the ice is melting and the all
pores are filled with water the antenna do not work.
antennas submerged in salt water work, how does that happen??

It was here about antennas made of salt water.
Is it a normal practice to make an underwater antennas?
S*

yes, there are underwater antennas in use 24/7 by military
submarines... so how do the electrons get through the salt water?