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Other Dive Equipment: Discuss Southern Hemisphere Compass in the Dive Kit and Equipment forums: Exactly what it says in the title. I'm off to the South Atlantic in January and I need a compass. ...

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Old 22-11-07, 02:45 PM
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Southern Hemisphere Compass
Exactly what it says in the title.

I'm off to the South Atlantic in January and I need a compass.

Now before some smart arse jumps in with "they all point north" (yeah you, that's what you were thinking right?) the ones designed for the Northern use have a weighted needle.

Does anyone have one or know who sells them.

Thanks

Simon
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Old 22-11-07, 02:47 PM
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Quote:
Originally Posted by Simon TW
Exactly what it says in the title.

I'm off to the South Atlantic in January and I need a compass.

Now before some smart arse jumps in with "they all point north" (yeah you, that's what you were thinking right?) the ones designed for the Northern use have a weighted needle.

Does anyone have one or know who sells them.

Thanks

Simon
Suunto sell region specific models taking deviation into account, try a dealer.

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Old 22-11-07, 02:54 PM
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Old 22-11-07, 03:44 PM
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Will a northern hemisphere compass not work? That is, will is still not point to a constant bearing. And id you do have to head north - how far out will it be? Few degrees means nothing really on a dive where as 90 will make a small difference ;o)
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Old 22-11-07, 03:47 PM
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No, I took my compass to Australia last year and the tilt was all to sh*t. I had to rent a southern hemisphere one.

The water goes down the plughole anticlockwise too!!! Strange eh?
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Old 22-11-07, 04:30 PM
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Quote:
Originally Posted by purple vonny
The water goes down the plughole anticlockwise too!!! Strange eh?
I thought that was an urban myth?

Edit: Yep it is.
Urban Legends Reference Pages: Coriolis Force Effect on Drains
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Old 22-11-07, 04:34 PM
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I thought that was an urban myth?
No, that's one of them insects that flies into street lights . . .


erm . . .

no . . . that would be an urban moth


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Old 22-11-07, 05:29 PM
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There it is... Learn something every day.

Now I know why the compass on my computer stopped working when I moved here.
Just took it out of the rubber casing and can see that the weights are causing it to dip north. Bloody sourthern hemisphere compass.

Simon, I'd suggest you buy an electronic compass.
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Old 22-11-07, 05:43 PM
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Quote:
Originally Posted by purple vonny
The water goes down the plughole anticlockwise too!!! Strange eh?
Ah the old "Coriolis effect" but it should be clockwise, in the Southern Hemisphere.
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Old 22-11-07, 06:09 PM
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I'll go and stand in the thick / silly corner for a while.

But my complass didn't work, honestly!!!
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