Magnetism
Hangi stones and magnetism
25 Feb 2016
Hangi or oven stones are a record of the earth's magnetic field at the time they were heated and cooled, and they show a remarkable history of New Zealand's magnetic field for the past 600 years. Audio, Gallery
Hangi stones and magnetism
25 Feb 2016
Hangi or oven stones are a record of the earth's magnetic field at the time they were heated and cooled, and they show a remarkable history of New Zealand's magnetic field for the past 600 years.
Audio