Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, ...

A team of physicists and engineers at the University of Colorado Boulder has discovered a new way to measure the orientation ...

To calculate the force on a wire carrying a current at right angles to a magnetic field, use the equation: 2 A flows through a 50 cm wire. Calculate the force acting on the wire when it is placed ...

This confirmed an equation for energy splitting of atomic energy levels developed by Llewellyn Thomas in 1926, due to 1) the special relativistic magnetic field seen by the electron due to its ...

THE magnetic induction equation of electro-dynamics ... energy if it were allowed to circulate about a varying magnetic field. It suggested to W. F. G. Swann1 that fluctuations in the magnetic ...