Twenty years ago, theoretical physicists and computer scientists were developing quantum algorithms for virtual quantum computers, with no working hardware in sight. Today, just about anyone can log ...

Mathematics might be more of an environmental science than we realize. Even though it is a search for eternal truths, many mathematical concepts trace their origins to everyday experience. Astrology ...

Ernst Mach found atoms useful. But he didn’t believe they were real. The 19th century physicist-philosopher gained his greatest fame as an atom denier. He believed that reality consisted of sounds and ...