The three 'norths' will combine over Britain this month for the first time in history and stay for the next 3.5 years. True north, magnetic north and grid north are all set to make landfall at the ...
After a three-year journey together through the heart of the country, the 'three norths' have left England. The historic triple alignment of 'true', 'magnetic' and 'grid' north – the three definitions ...
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