This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...

With an overview of topics related to chemical equilibrium, this site provides a foundation to a study of thermodynamics and equilibrium. Included in the discussion with the equilibrium constant are topics such as equilibrium and...

Using understandable words and exceptional graphics, this page describes the transfer of energy by means of the convection process. Contains several links to related topics.