Lisa Clayton

[AntarcticPilot]

A compass made for northern hemisphere will be prone to (small) error in the Southern Hemisphere due to ‘dip’, though it’s only likely to be a problem as you get close to the ‘wrong’ pole.

A) It's the right Pole!
B) the problem arises because the compass card will try and set itself perpendicular to the magnetic field lines. SO a card that is balanced for the Northern hemisphere will tilt the wrong way in the Southern Hemisphere, and potentially encounter greater friction and be less readable. But scarcely a big deal until you're in the 50s or higher, especially in the Atlantic and Indian Oceans, which are the other side of Antarctica from the magnetic pole.

 

[Tradewinds]

A) It's the right Pole!
B) the problem arises because the compass card will try and set itself perpendicular to the magnetic field lines. SO a card that is balanced for the Northern hemisphere will tilt the wrong way in the Southern Hemisphere, and potentially encounter greater friction and be less readable. But scarcely a big deal until you're in the 50s or higher, especially in the Atlantic and Indian Oceans, which are the other side of Antarctica from the magnetic pole.

I only found out about it when I got to NZ. Never noticed anything untoward.

 

[Biggles Wader]

You need a special chronometer for the Southern hemisphere too as time goes the other way there.
Or is that when you cross the Dateline? I get so confused!

 

[mjcoon]

You need a special chronometer for the Southern hemisphere too as time goes the other way there.
Or is that when you cross the Dateline? I get so confused!

Or is that the water going down the plug-hole?

 

[AntarcticPilot]

I only found out about it when I got to NZ. Never noticed anything untoward.

Even NZ is probably too far north for the effect to be appreciable. It's mainly a theoretical worry unless you're going far South (or north).

 

[arcot]

Just watching it.
The beginning and at 13:55 shows following seas/waves the size of which are rarely captured on camera and she/the boat are taking it very relaxedly.
It also stated she had to mend the generator with a pearl necklace, which seems exceptionally sporting of her

Excellent photography......a brave woman to be admired.