Evidence of magnetic field reversal

Discussion in 'Bad Dog Cafe' started by schmee, Jul 12, 2019.

  1. chris m.

    chris m. Poster Extraordinaire

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    Our fears during the Cold War were not unfounded. There were numerous close calls....as in a single Russian launch officer refusing to obey launch order. As in Kennedy disagreeing with Pentagon recommendation to launch during Cuban missile crisis.
     
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  2. Piggy Stu

    Piggy Stu Friend of Leo's

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    I am the sort of idiot who thinks lying about his age is hilarious

    I was born in the 70s and grew up in an England full of tv with an agenda about nuclear war being imminent

    I don't know if children of the 70s are called Generation X, but being raised with nuclear war ideas on tv all the time had to have an effect

    Some girl I worked with for years was born in 1992. I was born closer to the Beatles splitting than she was the Berlin Wall falling
     
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  3. Obsessed

    Obsessed Telefied Ad Free Member

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    I have been following the research of the swapping of magnetic fields on Earth for years. It is interesting and provocative, but imminent has not really entered the equation yet. It was about 780,000 years ago since the last switchover occurred, so the human species was still rather primitive (relatively speaking ;)) compared to today's reliance on modern technology.

    The scientists are learning more and more from incredible research which makes it all the more interesting, but I doubt our species will be around for the next swap.

    Okay, I am only hoping.:p
     
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  4. BigDaddyLH

    BigDaddyLH Telefied Ad Free Member

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    Harley has a new Superhero: Bagel Beagle!
     
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  5. Toto'sDad

    Toto'sDad Telefied Ad Free Member

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    They had their last good run of Atomic Bomb explosions on TV in the mid sixties over here, actually they finally got to be kind of comforting. You know, you're having a HAM sandwich, and there the bomb is on the Telly, kind a poetic moment.
     
  6. teletimetx

    teletimetx Doctor of Teleocity

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    All things considered, not a bad article. One thing that was inconsistent- the headline states that the tree rings have evidence of a reversal.

    In the text you find that the research thinks there is evidence of a "near reversal".

    After all, if this tree is thought to be 40-45 thousand years old, and the last full reversal was over 700 thousand years ago, then the headline is a little misleading.

    Nonetheless, a great find, and hopefully some indication of what period of time is involved.

    I think the idea that the magnetosphere is somehow weakened in the process is a problematic theory. The earth somehow stops spinning? It's the spin that is essential to the magnetic energy.

    Wonder if there is any correlation between MPRE (magnetic polar reversal events) and asteroid strikes?

    The magnetic poles have slways been wandering- seems like reversal might take a little something extra.

    Would be a fun thing to study.

    :)
     
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  7. AxRookie

    AxRookie Tele-Meister

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    Don't throw out your compasses, After the swap, they will still work...

    Well that is not completely true, If ALL outside influences could be completely eliminated and the sink was big enough? But it most definitely can occur with something, relatively speaking, slightly larger than a sink...

    Say at the size of a small kiddie pool... Be sure to play both videos at the same time sync up...

     
    Last edited: Jul 13, 2019
  8. strat a various

    strat a various Friend of Leo's

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    The magnetic field doesn't have to cease to become ineffective, it just has to deform enough to leave large areas unprotected.
     
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  9. Toto'sDad

    Toto'sDad Telefied Ad Free Member

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    This is completely the result of private enterprise, no grants involved. I have decided in my infinite wisdom as a specialist in the field of magnetic field research that the answer is simple. We'll just instruct all seven and a half billion of the earth's population to lean the OTHER way, no not that way, THE OTHER WAY!
     
  10. Toto'sDad

    Toto'sDad Telefied Ad Free Member

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    I'm confident we'll find a way. After all in 1946, Australia was able to overcome the horrible pig bristle shortage crisis that threatened to undermine the reduction in housing shortages that were plaguing the country. The housing could be built but not painted. Today we have all the pig bristle we will ever need, thanks to human ingenuity! One small step for Australia, a giant leap for all mankind.
     
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  11. teletimetx

    teletimetx Doctor of Teleocity

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    Yeah, sorry, I wasn't more clear. Not saying that some sort of deformation hasn't occurred, but to make the connection that polarity reversal is the cause of that deformation is indeed problematic.

    Unless you want to suspend Newton's first law of motion, perhaps. Bodies at rest tend to stay at rest; bodies in motion tend to stay in motion. In the scale being discussed, the earth represents a pretty big object that is rotating, and most likely it's going to take some significant force to alter that motion. The interaction between the solid inner core, liquid outer core (as shown by seismic waves) likely generates electric energy that is part of the magnetosphere. Add the rotation of the planet.

    NASA, for what that's worth doesn't seem to think that polarity reversal, in and of itself, is a potential life threatening event. From the same page quoted in the Newsweek lonely tree piece,
    Another doomsday hypothesis about a geomagnetic flip plays up fears about incoming solar activity. This suggestion mistakenly assumes that a pole reversal would momentarily leave Earth without the magnetic field that protects us from solar flares and coronal mass ejections from the sun. But, while Earth's magnetic field can indeed weaken and strengthen over time, there is no indication that it has ever disappeared completely. A weaker field would certainly lead to a small increase in solar radiation on Earth – as well as a beautiful display of aurora at lower latitudes - but nothing deadly. Moreover, even with a weakened magnetic field, Earth's thick atmosphere also offers protection against the sun's incoming particles.

    https://www.nasa.gov/topics/earth/features/2012-poleReversal.html

    It just seems more likely that some large event might likely interfere with the magnetosphere and as a result, polarity flips. Not the other way around.

    Plus, I like to play guitar and drink beer. Tragically, at the moment, I'm off beer due to taking antibiotics following a root canal. I'm not saying polarity flipping caused the root canal, but I'd like to.

    :)
     
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  12. william tele

    william tele Doctor of Teleocity Ad Free Member

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    If science really cared about us they would work on beer friendly antibiotics....
     
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  13. chris m.

    chris m. Poster Extraordinaire

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    Reversal flips are a well documented, regular occurrence. Has to do with the way the Earth’s mantle moves inside the planetary core. It’s spherical, not columnar, so its circulatory movements and eddies are quite complex.
     
  14. chris m.

    chris m. Poster Extraordinaire

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  15. HoodieMcFoodie

    HoodieMcFoodie Doctor of Teleocity Ad Free Member

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    I know we Aussies have a bad habit of claiming things from New Zealand as our own, but ancient buried trees are generally not one of them. Unless they have tonez. :D
     
  16. kbold

    kbold Tele-Holic Silver Supporter

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    I was starting to get concerned .... until you mentioned nationwide.
    Lucky for me, I'm in Australia, so that means I'm safe. Phew!

    But .... I'll also be in "the land no longer down under". Doesn't sound right.
     
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  17. AxRookie

    AxRookie Tele-Meister

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    Just don't stand under those unprotected areas and you'll be fine... lol

    That kind of sounds like something Trump would say now that I think about it... Sorry... lol
     
  18. BorderRadio

    BorderRadio Poster Extraordinaire Silver Supporter

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    Well it was kind of a cool thread. I’d like to say IBTL (or cleanup) that I’m a fan of the Magnetic Fields...

     
  19. telemnemonics

    telemnemonics Doctor of Teleocity Ad Free Member

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    Interesting article, another reminder of the frailty of the massive system we rely on.
    Maybe I've read it before and forgot, but thinking of the magnetic field protecting the earth's atmosphere from solar winds is a sort of unlikely coincidence.
    Also interesting that the long ago magnetic shift was recorded in the growth rings.
     
  20. 2 Headed Goat

    2 Headed Goat Tele-Afflicted

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