Translation is the communication of the meaning of a source-language text by means of an equivalent target-language text. The English language draws a terminological distinction (not all languages do) between translating (a written text) and interpreting (oral or sign-language communication between users of different languages); under this distinction, translation can begin only after the appearance of writing within a language community.
Photovoltaic (PV) systems that harness the Sun's virtually limitless supply of energy are now visible in limited locations across Europe. A new open-source simulation platform will foster lower costs and enhanced performance for mass market uptake.