A diagram showing the relationship between the motion of conducting fluid (organized into rolls by the Coriolis force) and the magnetic field that the motion generates.
<a href="//commons.wikimedia.org/wiki/File:Outer_core_convection_rolls.jpg" title="File:Outer core convection rolls.jpg">Original work by the United States Geological Survey</a>
<a href="//commons.wikimedia.org/wiki/User:Azcolvin429" title="User:Azcolvin429">Andrew Z. Colvin</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>