| − | The '''particle/wave duality theory''' is the theory that light can behave as both a particle and a wave depending on the manner in which it is observed.<ref>Wile, Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref> | + | The '''particle/wave duality theory''' is the theory that [[light]] can behave as both a [[particle]] and a [[wave]] depending on the manner in which it is observed.<ref>Wile, Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref> |