Explore the physics of elastic and inelastic collisions with a hands-on Newton’s Cradle demonstration! This video breaks down the differences between these types of collisions, illustrating concepts ...

Just after 9 a.m. on Friday, Feb. 6, 2026, final beams of oxygen ions—oxygen atoms stripped of their electrons—circulated ...

Solve a basketball jump physics problem by tracking how mechanical energy changes from takeoff to peak height. This video explains kinetic energy, gravitational potential energy, and energy ...

Atomic and molecular collision processes are the physical interactions of atoms and molecules when they are brought into close contact with each other and with electrons, protons, neutrons or ions.

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics attempts ...

As Moscow bureau chief, Guy runs coverage of Russia and the Commonwealth of Independent States. Before Moscow, Guy ran Brexit coverage as London bureau chief (2012-2022). On the night of Brexit, his ...