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abqtommy

(14,118 posts)
1. We'll just adjust the setting on our compasses so that it indicates true north, same as we always
Mon Dec 23, 2019, 08:03 AM
Dec 2019

have. But I think the op is wrong about magnetic north shifting to the east. It's been to the east all of my
life. If the magnetic pole is drifting into Russia then it will be west of "true north", at least here in North
America.

For all of my life I've always had to set the "true north" indicator on my compass dial
counterclockwise 4 degrees since that was the difference between the indication of magnetic north in
Canada and "true north". Now we'll just have to move our indicators clockwise to match the difference between a magnetic north in Russia and "true north". That's simple enough.

Or even more basic, if it's a sunny day, put a stick vertically in the ground, put a mark where the sticks
shadow ends then repeat in 15 to 30 minutes. Draw a line through the two marks. That's your east-west mark. (The first mark made indicates "west".) Draw another line at 90 degrees through the east-west mark and that's your north-south mark. Now, even if you don't know where you are you'll know where you're going.

3Hotdogs

(12,390 posts)
3. Last paragraph -- interesting.
Mon Dec 23, 2019, 08:47 AM
Dec 2019

Does it work any hour of daylight? Is there a difference between a 15 or 30 minute measurement?


Now my wife won't get pissed 'cause I won't ask for directions. I just get my stick out of th --- wait. I already have hiking poles. Don't need no stick.

abqtommy

(14,118 posts)
9. Well, from my experience the shadow trick works best at midday. Early or late in the day the
Mon Dec 23, 2019, 01:17 PM
Dec 2019

shadows are real long and can be a little indistinct for accurate marking. The longer we wait to make our marks the farther apart they'll be and then it's more likely for our first line to be more accurate. I learned this by doing it and it works great. (I learned it in a college course on wilderness survival.)
If this interests you then you might also be interested in hearing or learning about using a piece of plastic, some string, a small rock and a small container to make a solar still to get some fresh water.

muriel_volestrangler

(101,321 posts)
5. It all depends on where you are
Mon Dec 23, 2019, 10:05 AM
Dec 2019

Last edited Mon Dec 23, 2019, 03:28 PM - Edit history (1)

The diagrams in the full article are useful:





Anywhere with a red line through it has magnetic north east of true north, blue west of true north. Green is the line where they match - currently going through Britain, and the middle of the USA. The line through Britain is moving west (but not necessarily the one through the USA). When a magnetic pole is close to the true pole, this gives a pattern divided into 4 quarters, like at the north pole; when it's further away (like it is at the moment in Antartica), you get a pattern divide into 2. A world map look like this:



I think their claim that "all compasses will point east of true north" is wrong; pretty much by definition, if it's east at one place, it'll be west at another. But Beggan is from the British Geological Survey, and it should be the case that all compasses in Britain will point east, where we've had them all pointed west for a few hundred years until now.

lastlib

(23,247 posts)
8. In all my time in the wilderness, I've NEVER been lost;
Mon Dec 23, 2019, 12:47 PM
Dec 2019

just a mite bewildered for a couple hours or so......

abqtommy

(14,118 posts)
10. Wow! What colorful illustrations! Thanks! I stand by my remarks, especially where I said
Mon Dec 23, 2019, 01:25 PM
Dec 2019

"at least in North America". I always try to provide the best information I can, unlike some others... In
any event, a stick and a sunny day will give you an accurate result without any argument!

lastlib

(23,247 posts)
7. Or, if you have an analog wrist-watch....
Mon Dec 23, 2019, 12:46 PM
Dec 2019

Northern Hemisphere: point the hour hand at the sun, and draw a line halfway between the hour hand and the '12' on the watch face. That's a north-south line.

Southern Hemisphere: point the '12' at the sun, and draw a line halfway between the hour hand and the '12' on the watch face. That's a north-south line.

Caveat: In daylight savings time, use the '1' instead of the '12'.

3Hotdogs

(12,390 posts)
2. Or just take nail polish and paint a new north on the face of you iPhone compass.
Mon Dec 23, 2019, 08:44 AM
Dec 2019

It'l screw up the screen for everything else, but you won't get lost.

Midnight Writer

(21,768 posts)
12. A tip. In my part of the country, satellite dishes face southwest.
Mon Dec 23, 2019, 04:33 PM
Dec 2019

Easy way to re-orient yourself if you lose direction.

safeinOhio

(32,688 posts)
14. Long time ago I go lost in the deep woods.
Mon Dec 23, 2019, 06:04 PM
Dec 2019

So, I had heard that moss grows on the North side of trees. All the trees had moss on all the sides.

Then I remembered if you get lost fire 3 shots in the air. Wait a few minutes and repeat. I kept doing it until I ran out of arrows and no one came looking for me.

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