For the song by 311, see Grassroots.

Applied science is the application of knowledge from one or more natural scientific fields to solve practical problems. Fields of engineering are applied sciences. Applied science is important for technology development. Its use in industrial settings is usually referred to as research and development (R&D).

ar:???? ??????? de:Angewandte Forschung fr:Recherche appliquée hi:?????????? ??????? ms:Sains gunaan ru:?????????? ???????????? sr:????????? ????? th:???????????????????