The simplest questions are often the best. Robert P Crease tries to answer one from a physics student in Kenya Seeking perfection Tennis balls are a low-cost way to explore simple physics concepts, ...

A virtual laboratory under development at the University of North Carolina at Greensboro aims to let students experiment with physics concepts without physically being in a lab. Computer simulations ...

Abstract: Materials are made of atoms, atoms are made of nuclei and electrons, and the speed of light is the universal speed limit. How did humanity learn that this is true? Largely from brilliantly ...