how can we tell when a system is close to the edge?
- Written by Ben Fulcher, Senior Lecturer, School of Physics, University of Sydney
Solarseven / ShutterstockAccording to the infamous myth, groups of lemmings sometimes run off cliffs to their collective doom. Imagine you are one of these rodents: on a sunny day you join your companions in a joyous climb up a mountain beneath clear skies, traipsing across grass and dirt and rock, glad to be among friends, until suddenly you...





