Called the Lévy walk (or in some cases the Lévy flight) after mathematician Paul Lévy, it is a type of random wandering that occurs in nature in a wide variety of ways, from predators searching for ...

Particle astrophysics is the study of fundamental particles travelling through space, particularly those that reach the Earth. These cosmic rays include photons, protons, alpha particles and neutrinos ...

Michael Evans writes about insurance and other finance topics for Investopedia. An insurance industry veteran, he has covered personal finance for more than 20 years for publications including ...