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Compasses are a navigational instrument utilising a magnetized needle giving a frame of reference based on North, South, East and West, as well as their intermediate directions such as SE, NW etc. This is based on Magnetic North, and not True or Grid North.

9 votes
2 answers
2k views

What is dead reckoning when navigating with a map and compass?

There is a technique for navigation known as dead reckoning, what is this technique exactly and when would it be useful?
Charlie Brumbaugh's user avatar
8 votes
4 answers
5k views

Can a compass be thrown off by its surroundings?

Would it be possible for a compass be affected by its surroundings, such as a large iron deposit or other rocks to the point where it is not working correctly? I am not talking about declination but …
Charlie Brumbaugh's user avatar
7 votes
1 answer
3k views

Can a compass reverse polarity?

Can a compass have its polarity reversed so that the end marked "north" points south and vice versa? If so, what could one do to prevent and fix this problem?
Charlie Brumbaugh's user avatar
4 votes
2 answers
251 views

Can you find your location using the angle between compass bearings?

Sometimes compasses are less accurate than we would like them to be. …
Charlie Brumbaugh's user avatar
1 vote
1 answer
367 views

Are there bubble free handheld compasses?

We have one question asking where it is normal for a compass to have bubbles and another asking why compasses get bubbles, but we do not have a question clearly asking if handheld compasses exist that … So are there handheld compasses that do not get bubbles? …
Charlie Brumbaugh's user avatar