The magnetic field has failed the Globe Community.
Nope! The Globe has a very well mapped magnetic field, thank you. It looks roughly like this:
And there are maps available showing the magnetic declination, see
Find the magnetic declination at your location.
Here are the results for Brisbane, near here:
Now you show me how you find the magnetic declination on your flat earth.
How can they navagate without one?
Before GNS Systems I used the same magnetic compass I showed in an earlier post.
National Geographic reports that the temperature of the Earth’s outer core is estimated to be between 7,200 and 9,000 degrees Fahrenheit.
Had you looked a bit further you might have found this!
[bSEG Wiki: ]Layers of the Earth[/b][/url]
Outer Core
The outer core is composed mostly of iron and nickel, with these metals found in liquid form. The outer core reaches between 7,200 and 9,000 degrees Fahrenheit (4,000 and 5,000 degrees Celsius) and is estimated to be 1,430 miles (2,300 km) thick. It is the movement of the liquid within the outer core that generates Earth’s magnetic field.
You need to anchor the housing of a generator to achieve RPM needed to generate a magnetic field. And don't let it get too hot or it will fail you!
Why is there a problem? The temperature gradients in the molten part of the core cause convection currents in the molten nickel-iron.
Then the earth's rotation results in the Coriolis effect to cause the moving conductors resulting in circulating current generating the magnetic field, similar to a self-excited dynamo.
You might learn more from
What creates Earth's magnetic field? The Earth's core works like a giant bicycle dynamo in reverse.Now, Mr Plat Terra, what is the cause of the magnetic field on your flat earth? Remember that you must explain those"wandering magnetic poles".