[Travel] Interesting maps

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Worried Man Blues

Worried Man Blues

Well-known member
Feb 28, 2009
7,300
Swansea
Sid and the Sharknados said:
I think the north pole being at the south pole that recently has more to do with it occasionally flipping over altogether, rather than it's gradual shift across the Arctic as illustrated by that map.

The flipping polarity leaves bands in the rocks in the Atlantic, which I was hoping to illustrate with a thread-appropriate map, but I couldn't find anything that looked remotely clear or helpful on the back of a quick Internet search.

Other fun north pole related fact, Polaris is gradually moving across the sky, so back in Ancient Greek/Roman times it wasn't exactly above the north pole, and in a few hundred years it'll have moved past it.
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Wiki says it's gradually moving...........As of early 2019, the magnetic north pole is moving from Canada towards Siberia at a rate of approximately 55 km (34 mi) per year.[ Personally I haven't a clue!!
 




N

nickbrighton

Well-known member
Feb 19, 2016
2,146
Worried Man Blues said:
Wiki says it's gradually moving...........As of early 2019, the magnetic north pole is moving from Canada towards Siberia at a rate of approximately 55 km (34 mi) per year.[ Personally I haven't a clue!!
Click to expand...
the magnetic poles have always moved, basically oscillating "left and right" . In order to read maps correctly you need to take into the account the difference between true north and magnetic north. To be entirely accurate with a map and compass you have to allow for the difference and add or subtract the difference

This changes with time but is different from when the poles flip

he difference between True North and Magnetic North is as follows:
Flipping magnetic poles, also known as geomagnetic pole reversals, have happened throughout Earth's history123. The last one occurred 780,000 years ago2. These reversals take a long time to occur and pose no immediate threat2. The Earth's magnetic field is in continual flux, causing the location of Earth’s magnetic north and south poles to gradually shift and even completely flip locations every 300,000 years or so3
 




B

Bodian

Well-known member
May 3, 2012
14,351
Cumbria
Worried Man Blues said:
This amazed me...the Magnetic North is moving and always has! It used to be at the South Pole in the mammoth era, mucked up their migration I presume!!

View attachment 192484
Click to expand...

nickbrighton said:
the magnetic poles have always moved, basically oscillating "left and right" . In order to read maps correctly you need to take into the account the difference between true north and magnetic north. To be entirely accurate with a map and compass you have to allow for the difference and add or subtract the difference

This changes with time but is different from when the poles flip

he difference between True North and Magnetic North is as follows:
Flipping magnetic poles, also known as geomagnetic pole reversals, have happened throughout Earth's history123. The last one occurred 780,000 years ago2. These reversals take a long time to occur and pose no immediate threat2. The Earth's magnetic field is in continual flux, causing the location of Earth’s magnetic north and south poles to gradually shift and even completely flip locations every 300,000 years or so3
Click to expand...
You'll have missed this then. In the world of those of us who work with maps on a daily basis, it was quite an event!

www.ordnancesurvey.co.uk

Three ‘norths’ combine over GB for first time in history | OS

November 2022 saw geospatial history being made when true north, magnetic north and grid north combine at a single point in Great Britain for the first time ever.
www.ordnancesurvey.co.uk www.ordnancesurvey.co.uk
 


F

Fungus

Well-known member
NSC Patron
May 21, 2004
7,160
Truro
The OS Maps app is the app I use the most on my phone, by far. Great for planning and recording walks, as well as making them up as we go along. Also great for following (UK) travel documentaries.

The NLS side-by-side maps are brilliant for family history, pinpointing where my ancestors lived. Google maps also has its place for that, but is rubbish for hikes.
 




Swimboy64

Swimboy64

Well-known member
Oct 19, 2022
494
Eeyore said:
View attachment 192456

Queen's Park Cricket Ground. An obsession of mine. No pictures exist. Only a couple of references. How it was even level is something I can't work out, given the uneven terrain as it is now.
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Looking at that it was on the site that is now St Luke’s church opposite the Beaufort Pub
Very interesting map thanks for posting
 




Sid and the Sharknados

Sid and the Sharknados

Well-known member
NSC Patron
Sep 4, 2022
5,742
Darlington
Worried Man Blues said:
Wiki says it's gradually moving...........As of early 2019, the magnetic north pole is moving from Canada towards Siberia at a rate of approximately 55 km (34 mi) per year.[ Personally I haven't a clue!!
Click to expand...
Oh yeah, it's definitely moving (as other's have also replied with since), it's just that's a different thing to the north magnetic pole sometimes being at the south geographic pole.
 




A1X

A1X

Well-known member
NSC Patron
Sep 1, 2017
20,599
Deepest, darkest Sussex




Giraffe

Giraffe

VERY part time moderator
Helpful Moderator
NSC Patron
Aug 8, 2005
27,246
IMG_1110.jpeg

This is Chile represented exactly across Europe.
 




Eeyore

Eeyore

Colonel Hee-Haw of Queen's Park
NSC Patron
Apr 5, 2014
25,993
Swimboy64 said:
Looking at that it was on the site that is now St Luke’s church opposite the Beaufort Pub
Very interesting map thanks for posting
Click to expand...
Yes, I've lived in the area most of my life. I used to pretend the back garden was a cricket pitch- and then found out it once was
 




N

nickbrighton

Well-known member
Feb 19, 2016
2,146
Bodian said:
You'll have missed this then. In the world of those of us who work with maps on a daily basis, it was quite an event!

www.ordnancesurvey.co.uk

Three ‘norths’ combine over GB for first time in history | OS

November 2022 saw geospatial history being made when true north, magnetic north and grid north combine at a single point in Great Britain for the first time ever.
www.ordnancesurvey.co.uk www.ordnancesurvey.co.uk
Click to expand...
Thanks for this, last time I had cause to navigate with OS Maps the difference was I think 8 degrees (cant recall if east or west-it was a long time ago). This current alignment would make orienteering much easier for a short while!
 














Giraffe

Giraffe

VERY part time moderator
Helpful Moderator
NSC Patron
Aug 8, 2005
27,246
Australian rail network. And to think I moan about the gaps in ours.

IMG_1118.jpeg
 


Eeyore

Eeyore

Colonel Hee-Haw of Queen's Park
NSC Patron
Apr 5, 2014
25,993
Giraffe said:
Australian rail network. And to think I moan about the gaps in ours.

View attachment 192590
Click to expand...
I was at Peterborough station in 1986 for the FA Cup match. Possibly the coldest game I can remember. Almost ten years later I was at the Peterborough station above in South Australia. It was 41 degrees C
 


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