6 ms·

Interestingly this happens every 11 years and also their is a longer cycle called the Hale cycle which is double the length at 22 years. It flips from a mostly

by gleenn 2y ago

Interestingly this happens every 11 years and also their is a longer cycle called the Hale cycle which is double the length at 22 years. It flips from a mostly dipole where the poles match the orientation of earth to a reverse and much more irregular magenetic orientation. I didn't see anything about how this really affects Earth directly other than what I knew previously about sun spots make Coronal Mass Ejections sometimes towards Earth. Think we had a few things happen recently due to those but nothing too crazy.

stanislavb 2y ago
Thank you so much. I came to the comments looking for a similar explanation.
anilakar 2y ago
Is it related to the 11 year sunspot cycle or just a coincidence?
- teamonkey 2y ago
  Directly related
- type0 2y ago
  For layman explanation it was just discussed it on StarTalk just a few days ago https://www.youtube.com/watch?v=lty_55JbkmE https://www.youtube.com/watch?v=lty_55JbkmE
  - lofaszvanitt 2y ago
    [flagged]
    - wegfawefgawefg 2y ago
      The point of the show is to bring science to common people. Many of the startalk episodes he brings on pop culture icons or sports commentators. They dumb down the content substantially, but my mom and my grandma really liked those types of episodes so it must work.
      - lofaszvanitt 2y ago
        Okay, but why does he need an idiot to ruin the show? NDT himself could sell the show, he is good at explaining things.
        cosmojg 2y ago
        Because there are a lot of people who like that idiot, and as an educational science show, their goal is to educate that idiot and people who like that idiot so they can all be a little less idiotic.
        lofaszvanitt 2y ago
        I'm not so sure about that people like that idiot.
    - gfosco 2y ago
      Depends who you ask. To me, NDT is unbearable too...
luxuryballs 2y ago
[flagged]
- ricardobeat 2y ago
  That coincidence plot in the paper is amazing. I wonder what the criteria was to include a pandemic episode. In the last link I don’t see any correlation at all, these are are completely different time scales? And even if there was, it’s meaningless as you can probably find a dozen random graphs (price of milk, number of eggs laid per chicken, left-handed births or whatever) that happen to be a near-perfect match to solar cycles.
- MrVandemar 2y ago
  Correlations are to be found everywhere: http://www.tylervigen.com/spurious/random http://www.tylervigen.com/spurious/random Not to say there isn't a causal relationship, but a correlation graph is only a "maybe there's a relationship" and not "this means that".
- isthatafact 2y ago
  I am no expert, but I am skeptical because the paper results looks way too perfect to be true. Then instead of doing statistical analysis with things like p-values or probabilities, they make wildly out of scope assertions like this: > "Considering all pandemics with obtained extremum points, we can conclude that sunspot extrema coincide with the pandemics’ first appearance probably because of mutation on virus DNA or generation of a new virus." They are claiming both sunspot minima and maxima, not just one or the other (which seems more intuitive?) somehow cause pandemics due to virus DNA mutations, even for pandemics that were caused by bacteria. I am all for using statistics and data science for discovery of new phenomena, but I suspect this one is total bunk.
  - mensetmanusman 2y ago
    Would be interesting if resulting bursts of gamma radiation increase the entropy of global DNA causing higher population of new virus candidates.
Galatians4_16 2y ago
Mostly affects cloud formation [1] 1. https://home.web.cern.ch/news/news/physics/cloud-discovers-new-way-which-aerosols-rapidly-form-and-grow-high-altitude https://home.web.cern.ch/news/news/physics/cloud-discovers-n...
- whoiscroberts 2y ago
  Without affecting weather patterns?
- defrost 2y ago
  You might want to find a better link. That specific article, while interesting, doesn't mention the sun's magnetic field once. Nor the sun, nor magnetic fields.
- Terretta 2y ago
  The CLOUD experiment found that sulfuric acid, nitric acid, and ammonia combine in the upper atmosphere to form particles that seed clouds, driven by chemicals and human activities, without mentioning the Sun's magnetic pole reversal. While certainly solar activity affects the atmosphere broadly, such as ozone levels influenced by UV radiation and solar particles, the CLOUD study writeup here doesn’t show a direct impact on the specific aerosol-forming reactions. So, while solar activity influences some chemistry such as ozone formation, it’s unclear if it affects the reactions described by CLOUD.
hn_throwaway_99 2y ago
My understanding is that the Hale cycle is just a complete "360° flip" of 2 "180° flips". I.e. the 11 year cycle is essentially going from "mostly dipole" (but say with north magnetic direction going one way) to irregular and then back to mostly dipole, but this time with magnetic north pointing in the opposite direction. The next 11 year cycle gets magnetic north pointing back "up" again.

by gleenn 2y ago

stanislavb 2y ago

Thank you so much. I came to the comments looking for a similar explanation.

anilakar 2y ago

Is it related to the 11 year sunspot cycle or just a coincidence?

teamonkey 2y ago
Directly related
type0 2y ago
For layman explanation it was just discussed it on StarTalk just a few days ago https://www.youtube.com/watch?v=lty_55JbkmE https://www.youtube.com/watch?v=lty_55JbkmE
- lofaszvanitt 2y ago
  [flagged]
  - wegfawefgawefg 2y ago
    The point of the show is to bring science to common people. Many of the startalk episodes he brings on pop culture icons or sports commentators. They dumb down the content substantially, but my mom and my grandma really liked those types of episodes so it must work.
    - lofaszvanitt 2y ago
      Okay, but why does he need an idiot to ruin the show? NDT himself could sell the show, he is good at explaining things.
      - cosmojg 2y ago
        Because there are a lot of people who like that idiot, and as an educational science show, their goal is to educate that idiot and people who like that idiot so they can all be a little less idiotic.
        lofaszvanitt 2y ago
        I'm not so sure about that people like that idiot.
  - gfosco 2y ago
    Depends who you ask. To me, NDT is unbearable too...

luxuryballs 2y ago

[flagged]

ricardobeat 2y ago
That coincidence plot in the paper is amazing. I wonder what the criteria was to include a pandemic episode. In the last link I don’t see any correlation at all, these are are completely different time scales? And even if there was, it’s meaningless as you can probably find a dozen random graphs (price of milk, number of eggs laid per chicken, left-handed births or whatever) that happen to be a near-perfect match to solar cycles.
MrVandemar 2y ago
Correlations are to be found everywhere: http://www.tylervigen.com/spurious/random http://www.tylervigen.com/spurious/random Not to say there isn't a causal relationship, but a correlation graph is only a "maybe there's a relationship" and not "this means that".
isthatafact 2y ago
I am no expert, but I am skeptical because the paper results looks way too perfect to be true. Then instead of doing statistical analysis with things like p-values or probabilities, they make wildly out of scope assertions like this: > "Considering all pandemics with obtained extremum points, we can conclude that sunspot extrema coincide with the pandemics’ first appearance probably because of mutation on virus DNA or generation of a new virus." They are claiming both sunspot minima and maxima, not just one or the other (which seems more intuitive?) somehow cause pandemics due to virus DNA mutations, even for pandemics that were caused by bacteria. I am all for using statistics and data science for discovery of new phenomena, but I suspect this one is total bunk.
- mensetmanusman 2y ago
  Would be interesting if resulting bursts of gamma radiation increase the entropy of global DNA causing higher population of new virus candidates.

Galatians4_16 2y ago

Mostly affects cloud formation [1] 1. https://home.web.cern.ch/news/news/physics/cloud-discovers-new-way-which-aerosols-rapidly-form-and-grow-high-altitude https://home.web.cern.ch/news/news/physics/cloud-discovers-n...

whoiscroberts 2y ago
Without affecting weather patterns?
defrost 2y ago
You might want to find a better link. That specific article, while interesting, doesn't mention the sun's magnetic field once. Nor the sun, nor magnetic fields.
Terretta 2y ago
The CLOUD experiment found that sulfuric acid, nitric acid, and ammonia combine in the upper atmosphere to form particles that seed clouds, driven by chemicals and human activities, without mentioning the Sun's magnetic pole reversal. While certainly solar activity affects the atmosphere broadly, such as ozone levels influenced by UV radiation and solar particles, the CLOUD study writeup here doesn’t show a direct impact on the specific aerosol-forming reactions. So, while solar activity influences some chemistry such as ozone formation, it’s unclear if it affects the reactions described by CLOUD.

hn_throwaway_99 2y ago

My understanding is that the Hale cycle is just a complete "360° flip" of 2 "180° flips". I.e. the 11 year cycle is essentially going from "mostly dipole" (but say with north magnetic direction going one way) to irregular and then back to mostly dipole, but this time with magnetic north pointing in the opposite direction. The next 11 year cycle gets magnetic north pointing back "up" again.