Difference Between True North and Magnetic North

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  • Опубликовано: 11 окт 2024

Комментарии • 41

  • @snsnplpl
    @snsnplpl 3 месяца назад +3

    I know a guy who decided to hike across Iceland from Akureryi to Hofn. When he got to the interior, which is barren wasteland, he found out his compass was not helping him find the spots that he had picked to get water. Apparently, when there is a lava flow 'the magnetism of iron-rich minerals in molten lava orients along the prevailing field, then becomes locked into place as the lava cools and hardens.' (science daily 9-26-2008). Considering Iceland is being formed by lava flows as the tectonic plates there pull apart, there are many layers of lava flows with different magnetic fields. He barely made it across and came out severely dehydrated.

  • @SysterEuropa
    @SysterEuropa 3 месяца назад +2

    Excellent video Doyle. Superb technique to get the point across quickly.

  • @BryanStewart-q6n
    @BryanStewart-q6n 3 месяца назад +3

    Excellent information. Good to know

  • @pathfinderdude
    @pathfinderdude 3 месяца назад +2

    Great Video Doyle

  • @paramaniacwolverine843
    @paramaniacwolverine843 3 месяца назад +1

    Old topographical maps used to have a small marker on the side that you put your compass on and a calculation to find true north or magnetic north according to the year post printing of the chart. It was not static. I've forgotten all that information, so now, thanks to this video I will have to go scratch out a map and see if I can still work it out.

    • @Nashvillain10SE
      @Nashvillain10SE 3 месяца назад +2

      It's called a declination diagram

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад +1

      The US Army maps still have the declination but they're changing them yearly due to the travelling magnetic north. I heard an astronomer say that all the planets in our solar system are experiencing the same phenomena. Thank you.

    • @paramaniacwolverine843
      @paramaniacwolverine843 3 месяца назад

      @@Nashvillain10SE thanks, I haven't done mapwork since the mid 1980s.

  • @AlpineWarrior550
    @AlpineWarrior550 3 месяца назад

    This topic is very interesting because of the way that these things are constantly changing….
    Having said that, one should have
    various ways to navigate. Along with knowledge and practiced skills…….
    This is why your videos are very interesting and useful…..‼️👍🏻

  • @johnrobinson4736
    @johnrobinson4736 3 месяца назад

    Great video Doyle! Keep it up.

  • @AlpineWarrior550
    @AlpineWarrior550 3 месяца назад +2

    Absolutely 👍🏻

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад

      There is a recent development in this topic.

  • @AlpineWarrior550
    @AlpineWarrior550 3 месяца назад +1

    Awesome job my friend…….
    FYI THE GM angle is different in a lot of areas…

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад +2

      It's 30 degrees off in some places and getting wider. Mag north is now close to Russia.

    • @andrewandres148
      @andrewandres148 3 месяца назад

      @@G.O.Bushcraft And it changes...... Many feel we are due for a magnetic pole shift..... It Happens every 6000 years or so........

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад

      Please check out Maverickstarreloaded and Suspicious0bservers channels on youtube. Both channels have compiled a HUGE volume of facts on the pole shift/ excursion. If we only experience a slip then we may survives this thing but who knows.

    • @AlpineWarrior550
      @AlpineWarrior550 3 месяца назад +1

      @@G.O.Bushcraft interesting my friend,
      thanks for the info…👍🏻

    • @andrewandres148
      @andrewandres148 3 месяца назад

      @@G.O.Bushcraft Yes, I keep up with Solar reports from Suspicious0bservers...

  • @steveanimatrix3887
    @steveanimatrix3887 3 месяца назад +3

    We're also currently experiencing a magnetic pole shift.

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад +2

      Correct Stevean. The magnetic pole shift started around 1982 now it's in full swing.

    • @Tjalve70
      @Tjalve70 3 месяца назад

      A magnetic pole shift takes thousands of years to complete.
      And you could say that Earth is constantly experiencing a magnetic pole shift, depending on what you mean by that.

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад

      @@Tjalve70 I'll leave that conclusion to the experts which I am not. suspicious0bservers and maverickstarreloaded have compiled volumes on this topic.

  • @zafnor
    @zafnor 3 месяца назад +1

    I always thought that the north star was not true north and that the north star was moving. Isn't there a better way to locate true north?

    • @chrisruthford4492
      @chrisruthford4492 3 месяца назад +1

      It's actually the earth that wobbles, not the north star.

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад +1

      You can easily do it yourself. Let me know what declination you find.

    • @zafnor
      @zafnor 3 месяца назад

      @@chrisruthford4492 yes, i realize that. my point being that I believe that the star is not true north.

    • @chrisruthford4492
      @chrisruthford4492 3 месяца назад

      @@zafnor Polaris is exactly true north it varies less than a degree. Magnetic north is almost 12° from Polaris.

  • @ldfox11
    @ldfox11 3 месяца назад +1

    So it's true, earths magnetic pole is shifting. When I used to backpack in the 80's in California, the magnetic north pole was 14 degrees from true north on my maps. Now you say it's 11 degrees difference in California.

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад +1

      You can easily do it yourself. Please let me know what you find. 11.9 degrees in Southern Ca toward Arizona.

    • @ldfox11
      @ldfox11 3 месяца назад +1

      @@G.O.Bushcraft Sequoia National Park 14° in the 80's. +12.07° now.

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад +1

      That seems to be correct with the distance involved. I would like to know the contact info for the US Navy atomic clock in Colorado. They 've been tracking this stuff since the 50's.

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад +1

      Did you use the NGEO website?

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад +1

      This is the NOAA Website. They have a serious interest in knowing exactly what the declination is. www.ngdc.noaa.gov/geomag/calculators/mobileDeclination.shtml

  • @bpurkapi
    @bpurkapi 3 месяца назад +1

    and this is why we have gps

    • @G.O.Bushcraft
      @G.O.Bushcraft  3 месяца назад +1

      True. GPS is updated by the minute. Thank you.