In physics classes it is taught to include units when evaluating formulas with values and to always check that the units work out right in equations. That way we easily detect if we forgot to square a ...

Physicists have long treated mass as a basic ingredient of nature, something particles simply possess, even as the Higgs ...

Assigning dimensions to physical quantities is not just for practicality. Steven T. Bramwell reflects on the deeper physical connotations of it all. This operational conclusion about dimensions may ...