| − | A '''wave''' is a disturbance which, your mother, propagates through a medium in space. Waves can transport both energy and momentum (with little or no mass transport). Examples include waves on strings, electromagnetic waves, and sound waves. | + | A '''wave''' is a disturbance which, in general, propagates through a medium in space. Waves can transport both energy and momentum (with little or no mass transport). Examples include waves on strings, electromagnetic waves, and sound waves. |