Re: Heating for fusion, Why toast plasma when you can microwave it?

On 9/08/2024 4:38 pm, Jan Panteltje wrote:

On a sunny day (Fri, 9 Aug 2024 02:18:17 +1000) it happened Bill Sloman
<bill.sloman@ieee.org> wrote in <v92r4h$3fk7$1@dont-email.me>:
 

On 8/08/2024 8:23 pm, Jan Panteltje wrote:

On a sunny day (Thu, 8 Aug 2024 17:13:36 +1000) it happened Bill Sloman
<bill.sloman@ieee.org> wrote in <v91r78$3pjer$3@dont-email.me>:
>

On 7/08/2024 3:27 pm, Jan Panteltje wrote:

Heating for fusion: Why toast plasma when you can microwave it!
    https://www.sciencedaily.com/releases/2024/08/240806131216.htm
     Carving a new path forward for compact fusion vessels
Date:
    August 6, 2024
Source:
    DOE/Princeton Plasma Physics Laboratory
Summary:
    Can plasma be sufficiently heated inside a tokamak using only microwaves?
    New research suggests it can! Eliminating the central ohmic heating coil
    normally used in tokamaks will free up much-needed space for a more compact,
    efficient spherical tokamak.

>
Not so much carving a new path as looking for one. Maybe be gyrotrons
can heat the plasma enough, but planing to do experiment which can test
whether they can isn't exactly carving a new path - more just looking at
a possible new path.
>

Bye bye ITER and that otehr fusion attempt mayonaise thing
    https://www.sciencedaily.com/releases/2024/08/240806131357.htm
     Researchers dig deeper into stability challenges of nuclear fusion -- with mayonnaise
>
Now all I am waiting for is a 10 year old kid doing a better than break even fusion experiment in its parents kitchen...

>
You may have to wait a long time. Mayonaise may exhibit Rayleigh-Taylor
instability, but the lessons it might be able to impart would be
difficult to translate into totomak design.

>
I like that Farnsworth fusor thing

>
Of course you do. You are too dim to notice that it can't generate
enough energy to be a useful energy source - though it can be a handy
source of neutrons if you need them.
>
This spelled out if the link you posted, but clearly didn't read.
>

They mention the grid gets too hot as a problem.
Why not use a water filled pipe as grid,
heat the water to steam, drive a small steam engine
that drives a generator that drives a HV converter,
simple electronics, there is a table top experiment.
   https://en.wikipedia.org/wiki/Fusor
    so many simple ways to improve that setup!

>
But none are going to make it an energy source.

 Yea, and planes could never fly as those were heavier than air.

The objections to the Farnsworth fusor as a power source are rather more fundamental. Birds fly, and they are heavier than air.

There are solutions, some are simple.
I have been posting about that Farnsworth fusor many times, but your amnesia must have gotten to you again.

You've also be posting about the Le age theory of gravity. I'm well aware that you have moronic obsessions, and can't learn how silly they are.

What will never produce energy is the large political job creation projects for albert onestone parrots like ITER is.
Or that laser fusion crap in 'merrica.

The laser driven fusion machine at the NIF has produced energy, if nowhere near enough to be useful.
It's main job was always testing nuclear weapons in a way that didn't dump radioactive isotopes into the atmosphere, but you are too dumb to have processed that information.

Same for anti-gravity.

"Same"?

This is fun info too, previous thing you did not graps:
  Carvings at ancient monument may be world's oldest calendars
   https://www.sciencedaily.com/releases/2024/08/240806131238.htm
   comets causing global cooling?

Comets are fluffy snowballs that out-gas when their elliptical orbits get close to the sun, so that we can see them in the night sky.
Meteors are lumps of rock that we notice when they actually hit the earth. Big ones, like the asteroid that killed off the dinosaurs, put enough dust into the upper atmosphere to cause some global cooling until the dust washes out.
Calenders are all about repetitive stuff in the sky. and repeating meteor streams  don't dump enough mass to change the climate.

As to solder, when was the last time your front limbs held a soldering iron?

About a year ago. An electronic alarm clock stopped working, because one of the leads had fallen off. I tried to solder it back on, but the wire was too fine to let me do it. I do have some heavier insulated multi-strand hook-up wire somewhere around the flat, but I haven't been able to find it yet, and I've got two other alarms clocks that still work, so I haven't looked that hard.
--
Bill Sloman, Sydney
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