_:n7dca6d6c8142461b929d1f37302d0ca0xb0
<http://schema.org/description>
" On the University of Maryland campus, a giant whirligig tries to predict the planet’s next big flip"
<https://www.smithsonianmag.com/science-nature/what-will-happen-when-earths-magnetic-field-begins-reverse-180951166/>