/ compass readings in the southern hemisphere
Of course it will! Think of the earth's magnetic field.
> Of course it will! Think of the earth's magnetic field.
You'd think, wouldn't you? Apparently all is not as my GCE physics suggested, and the magnetic field of the planet is really pretty wonky. There's a number of different zones (five, I think) that compass makers tailor to, so you have to work out which one you'll be in, and buy accordingly.
Thats about the tendency of the needle to point towards the ground or the sky. There isn't anything the compass maker can do to stop the needle doing anything but align with the local (predominantly N-S) magnetic field
Of course, the local magnetic North may be significantly different to Grid or True North, depending on the local magnetic declination and grid convergence.
Australia isn't too bad, but NZ can be a long way off (20 to 30 degrees).
No. The black end will point south.
Yes, but the compass needs to be adjusted for the dip of the magnetic force lines if it is to be accurate.
I had a link on it but can't seem to find it at the moment.
You should google magnetic offset.
Elsewhere on the site
Nick Livesey discovered the mountains of Snowdonia over a decade ago and finally moved there a year and a half ago, quitting a... Read more
2014 has been a bumper year for climbing publications. Here's a few of the ones that we have either read, or ones that we... Read more
Everybody who has used a gas cartridge stove in cold conditions knows the lower the temperature, the poorer the performance of... Read more
WINTERFEST 2014 at Outside in Hathersage 6th and 7th December 2014 Outside's ever popular Winterfest event is back... Read more
If asked to name a British female climber who stood out at a time when British women's climbing wasn't... Read more