The program explores the nature of mechanical waves, questioning how they move and what creates them. It demonstrates wave motion through various experiments, including using a slinky and a wave ...

Alfvén accelerator: artist’s illustration of how Alfvén waves in Earth’s magnetic field can accelerate the electrons responsible for intense auroras. (Courtesy: Austin Montelius/University of Iowa) ...

The acoustic properties of an ultracold fermion gas have been measured either side of the superfluid transition temperature in an experiment that has been described as “near perfect” and “beautiful”.