Physicists have finally watched positronium, a short‑lived atom made of an electron and its antimatter twin, behave like a rippling quantum wave instead of a tiny billiard ball. In a set of ...

At the smallest scales of nature, the rules of the world shift in ways that can feel unsettling and beautiful at the same ...

The program demonstrates properties of these waves, including diffraction and interference, using various experiments. It concludes with an overview of radar technology, illustrating how it tracks ...