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.
Depletion and the negative environmental impact of fossil fuels are the main drivers behind the quest for renewable energy technologies. EU-funded scientists studied the potential of newly developed prototype devices to exploit geophysical flows.