Science, Maths & Technology
Emmy Noether: Bucking the historical trends
...change. Conserved quantities are common in physics, the most famous of which is energy, which cannot be created or destroyed. It is Noether's theorem that relates this conservation law to the underlying symmetry of space itself – in fact, the conservation of energy is a result of the fact that empty space 'looks the same' from one moment to the next. Put another way, if...