Can you build large plasma lamp ?...

[a a]

What is offered on Aliexpress is standard size small lamp.

I need large plasma lamp to model sunspots on the sun.

https://www.aliexpress.com/w/wholesale-plasma-lamp.html

 

[a a]

On Thursday, 26 January 2023 at 02:52:15 UTC+1, a a wrote:

What is offered on Aliexpress is standard size small lamp.

I need large plasma lamp to model sunspots on the sun.

https://www.aliexpress.com/w/wholesale-plasma-lamp.html

https://www.aliexpress.com/item/4000015798116.html

 

[Fred Bloggs]

On Wednesday, January 25, 2023 at 8:52:15 PM UTC-5, a a wrote:

What is offered on Aliexpress is standard size small lamp.

I need large plasma lamp to model sunspots on the sun.

https://www.aliexpress.com/w/wholesale-plasma-lamp.html

And just exactly how does a plasma globe model sunspots?

 

[a a]

On Thursday, 26 January 2023 at 03:05:08 UTC+1, Fred Bloggs wrote:

On Wednesday, January 25, 2023 at 8:52:15 PM UTC-5, a a wrote:
What is offered on Aliexpress is standard size small lamp.

I need large plasma lamp to model sunspots on the sun.

https://www.aliexpress.com/w/wholesale-plasma-lamp.html
And just exactly how does a plasma globe model sunspots?
Plasma globe is intended for tests how magnetic field can control plasma.

Next step is plasma torch ( high power plasma burner), controlled by magnetic field, fed with mixture of gases to generate dense plasma strings.

I test how Kirlian photography can be controlled in magnetic field.

so step by step approach to build functional model of the sunspot

 

[Anthony William Sloman]

On Thursday, January 26, 2023 at 1:17:44 PM UTC+11, a a wrote:

On Thursday, 26 January 2023 at 03:05:08 UTC+1, Fred Bloggs wrote:
On Wednesday, January 25, 2023 at 8:52:15 PM UTC-5, a a wrote:
What is offered on Aliexpress is standard size small lamp.

I need large plasma lamp to model sunspots on the sun.

https://www.aliexpress.com/w/wholesale-plasma-lamp.html
And just exactly how does a plasma globe model sunspots?

Plasma globe is intended for tests how magnetic field can control plasma.

Magnetic fields can\'t control plasmas. They can influence them, if there is current circulating in the plasma, but a couple of decades of nuclear fusion research, where electric currents are induced to flow through a plasma, has produced a lot of examples where the magnetic field didn\'t have the desired effect.

> Next step is plasma torch ( high power plasma burner), controlled by magnetic field, fed with mixture of gases to generate dense plasma strings.

So a a is going to re-invent the lumpy roller.

> I test how Kirlian photography can be controlled in magnetic field.

It can\'t. The currents are too low and the voltages too high for a magnetic field to a have any effect.

> so step by step approach to build functional model of the sunspot.

More a drunkards walk. This \"first step\" is clearly in the wrong direction, and is starting off from the wrong place.

--
Bill Sloman, Sydney

 

[Martin Brown]

On 26/01/2023 02:43, Anthony William Sloman wrote:

On Thursday, January 26, 2023 at 1:17:44 PM UTC+11, a a wrote:
On Thursday, 26 January 2023 at 03:05:08 UTC+1, Fred Bloggs wrote:
On Wednesday, January 25, 2023 at 8:52:15 PM UTC-5, a a wrote:
What is offered on Aliexpress is standard size small lamp.

I need large plasma lamp to model sunspots on the sun.

https://www.aliexpress.com/w/wholesale-plasma-lamp.html
And just exactly how does a plasma globe model sunspots?

Plasma globe is intended for tests how magnetic field can control
plasma.

Magnetic fields can\'t control plasmas. They can influence them, if
there is current circulating in the plasma, but a couple of decades
of nuclear fusion research, where electric currents are induced to
flow through a plasma, has produced a lot of examples where the
magnetic field didn\'t have the desired effect.

It isn\'t so much that as obtaining a magnetic field that is strong
enough and can be changed quickly to confine a high pressure dense
plasma that is undergoing fusion. Sustained fusion in the lab remains
very elusive despite being \"only 50 years away\" for more than 50 years.

Magnetic fields and beam wigglers routinely control fast plasma beams to
obtain stimulated emissions. The whole of mass spectrometry is down to
magnetic fields controlling plasmas (although it is only really a true
plasma with serious ion beam current in the calutrons).

The construction of them at Oak Ridge has some interesting tales when
they decided to substitute copper then in short supply with silver.

https://en.wikipedia.org/wiki/Calutron#Construction

The nicest way to bend an ion beam is with a uniform magnetic field.

Next step is plasma torch ( high power plasma burner), controlled
by magnetic field, fed with mixture of gases to generate dense
plasma strings.

So a a is going to re-invent the lumpy roller.

I test how Kirlian photography can be controlled in magnetic
field.

It can\'t. The currents are too low and the voltages too high for a
magnetic field to a have any effect.

so step by step approach to build functional model of the sunspot.

More a drunkards walk. This \"first step\" is clearly in the wrong
direction, and is starting off from the wrong place.

If he is serious then the best analogue models to date are molten sodium
between counter rotating spheres in a near uniform magnetic field. The
experimentalists have done quite well with this setup at obtaining some
of the right characteristics of self sustaining dynamo oscillations. eg.

https://www.academia.edu/47326010/Hydromagnetic_turbulent_instability_in_liquid_sodium_experiments

I can\'t immediately find the more recent stuff, but ISTR Lynden-Bell did
some theoretical work backed up by experiments a decade? ago.


--
Martin Brown

 

[Anthony William Sloman]

On Thursday, January 26, 2023 at 8:31:08 PM UTC+11, Martin Brown wrote:

On 26/01/2023 02:43, Anthony William Sloman wrote:
On Thursday, January 26, 2023 at 1:17:44 PM UTC+11, a a wrote:
On Thursday, 26 January 2023 at 03:05:08 UTC+1, Fred Bloggs wrote:
On Wednesday, January 25, 2023 at 8:52:15 PM UTC-5, a a wrote:
What is offered on Aliexpress is standard size small lamp.

I need large plasma lamp to model sunspots on the sun.

https://www.aliexpress.com/w/wholesale-plasma-lamp.html
And just exactly how does a plasma globe model sunspots?

Plasma globe is intended for tests how magnetic field can control
plasma.

Magnetic fields can\'t control plasmas. They can influence them, if
there is current circulating in the plasma, but a couple of decades
of nuclear fusion research, where electric currents are induced to
flow through a plasma, has produced a lot of examples where the
magnetic field didn\'t have the desired effect.
It isn\'t so much that as obtaining a magnetic field that is strong
enough and can be changed quickly to confine a high pressure dense
plasma that is undergoing fusion. Sustained fusion in the lab remains
very elusive despite being \"only 50 years away\" for more than 50 years.

And a a is seeking to understand sunspots. Nuclear fusion is happening in the sun, but a long way below the sundpots thart he wants to understand.

Magnetic fields and beam wigglers routinely control fast plasma beams to
obtain stimulated emissions. The whole of mass spectrometry is down to
magnetic fields controlling plasmas (although it is only really a true
plasma with serious ion beam current in the calutrons).

None of which have much to do with sunspots.

The construction of them at Oak Ridge has some interesting tales when
they decided to substitute copper then in short supply with silver.

https://en.wikipedia.org/wiki/Calutron#Construction

The nicest way to bend an ion beam is with a uniform magnetic field.

But the surface of the sun is rather short of ion beams. It does have current loops and magnetic fields.

Next step is plasma torch ( high power plasma burner), controlled
by magnetic field, fed with mixture of gases to generate dense
plasma strings.

So a a is going to re-invent the lumpy roller.

I test how Kirlian photography can be controlled in magnetic
field.

It can\'t. The currents are too low and the voltages too high for a
magnetic field to a have any effect.

so step by step approach to build functional model of the sunspot.

More a drunkards walk. This \"first step\" is clearly in the wrong
direction, and is starting off from the wrong place.

If he is serious then the best analogue models to date are molten sodium
between counter rotating spheres in a near uniform magnetic field. The
experimentalists have done quite well with this setup at obtaining some
of the right characteristics of self sustaining dynamo oscillations. eg.

https://www.academia.edu/47326010/Hydromagnetic_turbulent_instability_in_liquid_sodium_experiments

I can\'t immediately find the more recent stuff, but ISTR Lynden-Bell did
some theoretical work backed up by experiments a decade? ago.

That was more aimed at the earth\'s magnetic field. The surface of the sun has a much lighter conductor which is already engaged in turbulent convection.

There\'s obviously convection going in in the liquid core of the earth. I\'d imagine that it is turbulent, but the regime is very different from the outer layers of the sun, and there\'s lot less energy around to drive core convection.

--
Bill Sloman, Sydney