Research: 11 year solar cycle may be tied to planetary motion

OOOhhhhh...climate change, geomagnetic storms, carbon footprints, etc...be blind to all things solar and the tax money will flow in vicious 365 day cycles...out of OUR pockets. Our sun affects so much more than people want to give it credit for. Universities are very well paid to look elsewhere first, second, third, etc.

 

I dont have anything to do with that scientism/socialism nonsense.

Just wanted to make that clear.

73
Chip W1YW

 

The Tayler instability is something that happens in electrically conducting fluids (electrolyte solutions, plasmas, liquid metals) that are carrying strong currents.

There are situations, even with initially stationary fluid, where the forces from the electrical currents and associated magnetic fields can lead to motion of the fluid.

A simple example occurs when you have current flowing along the axis of a cylindrical tank of liquid metal. The magnetic field from the axial current points in the azimuthal direction. This, by itself, doesn't cause fluid motion. The forces from an axial current and its azimuthal magnetic field point radially, and hydrostatic pressure builds up in the fluid to balance the electromagnetic (Lorentz) force.

But this system can be unstable in certain conditions. If it is, a small external field perturbation or stirring of the fluid can grow into a sustained convection pattern of fluid flow, induced currents, and magnetic fields.

Since it's an unstable feedback loop, a surprisingly tiny external force can cause a big change in the resulting system behavior.

Some more info on the Tayler instability in Section 6 here in the context of liquid metal batteries, where there should be no other motions or flows in the initial system: http://www2.me.rochester.edu/projects/dhkelley-lab/papers/Kelley2017.pdf

A laboratory experiment to study the Tayler instability in a system similar to the liquid metal battery is here: https://www.researchgate.net/public...tability_in_a_Cylindrical_Liquid-Metal_Column

In the Sun, the situation is more complicated than a stationary liquid metal battery. The sun has many different sources of internal plasma motion, and the Tayler instability is only one possible one. But apparently (according to other papers by Stefani and others at HZDR), there are oscillations in Tayler-unstable systems that are easily synchronized to external forcing. And the idea in their work appears to be that the motions from Tayler instability in the sun are 1) responsible for an important part of the Sun's dynamo feedback loop and 2) are easily synchronized to and modulated by the tidal forces of the planets on the Sun's plasma.

https://arxiv.org/pdf/1803.08692.pdf

 

Yes indeed, this year's propagation was a welcome improvement. I spent a good portion of Saturday on 6m and 10m!!! So different from the last four or five years eaking out contacts on 40m/80m and trying to avoid duplicates from the same dozen station that could be heard.

Glad that you too had a great experience. Let the grave diggers and mourners stew in their juices while the rest of us enjoy ham radio!

 

You're back?

The world has changed since you left....

Anyway, OX knows his stuff on this topic.

73
Chip W1YW

 

Where, exactly is this 'remarkable' 6m activity? I can attest that there is basically NO 6m activity (save for the June VHF contest on 6m)....

EXCEPT for 2.8 KHz at 50.313......

 

'

It's hard for me to share your pessimistic opinion, not when our club is actively working toward attracting new members or rejuvenating the current license holders. We sent out postcards to all of the hams in our county a couple weeks before field day. Several folks showed up that have been MIA for years and are now back joining our local nets since attending field day. I also had the pleasure of helping a young couple make their first contacts, and it was on 20m. Both now are wanting to take the test ASAP.

It doesn't take much to turn things around when the hobby is this much fun. It ain't like we are trying to get people an appointment with a dentist.

 

And there lies the problem: you are confusing my experience and presentation of fact with the notion of 'skepticism'.

It will take a LOT to turn ham radio around, because of the powerful fatal grasp of the aged demographics AND long-term, predicted, poor band conditions.

If you had read my post you would understand that we BOTH feel the solution is MORE OPERATORS.

So, watza beef?

73
Chip W1YW

 

I read your post my man. There is no beef from my end, just offering a different opinion. What are you and or your club doing to help the situation? Maybe we can compare notes on what is working? The post cards inviting to field day and next club meeting were a big hit so far, club meeting is tomorrow, hope to see some new faces.

 

Per Chip, Taylor instability
A Model of a Tidally Synchronized Solar Dynamo
https://link.springer.com/article/10.1007/s11207-019-1447-1

AF4RK

 

I wonder what effect gravity waves have on the Sun (and all the other billions of stars) as they ripple through the universe?

Or, closer to home, what effect the black hole at the center of our galaxy has on our tiny speck of a star?

It's a myopic view to suppose or presume that three tiny planets are the ONLY things that can affect our star.

There's MUCH more to the 'big picture'

 

Inverse square law, bro! Bit far away to have any influence.
AF4RK

 

Understand inverse square law... but...

Think of how minuscule (using the inverse square law again) the effects of the planets are when they reach the Sun.

That big azz black hole at the center of our galaxy has enough influence to pull our entire galaxy into a spiral... and continues to pull the galaxy in ever tighter... and in billions of years our entire galaxy is going to get sucked in.

(We're spiraling the drain)

The same is occurring in billions of other galaxies too.

So, obviously, as far away as it is, say 25,000 light years, it has influence, however small.

Just saying I believe that to presume that the planetary alignment of three planets is the ONLY causal effect on the 11 year pulsation (22 year oscillation) is short sighted.

And, the Sun was there first...

It's entirely possible that the pulsation cycle has nudged the planets into their 'timing' over the billions of years that it's been occurring.

Yes... surely the grav fields of the planets affect the Sun. But there's no denying that the grav field of the Sun affects the planets.

 

Well, no, not really.

https://www.forbes.com/sites/quora/...f-our-galaxy-consume-everything/#6eb090495c25

 

Did not see this link posted in this thread. Some may find it interesting.
https://www.thegwpf.com/world-entering-a-deep-solar-minimum/