12th Food for Thought: flipping out ...
Due: Tuesday, 8 December 2020, 10:00 AM
During the lectures we learned many things about our very own ’magnetic
cage’, the dipole field that protects us from being directly hit by the
potentially deadly components of the solar wind. What we did not learn
is that this field is nor permanent but has changed polarity in the
course of Earth’s history – in geological time scale. Try to find
information about this reversal of the field and contemplate its