Linguistics is the scientific study of language, and involves an analysis of language form, language meaning, and language in context. The earliest activities in the documentation and description of language have been attributed to the 6th century BC Indian grammarian Pāṇini, who wrote a formal description of the Sanskrit language in his Aṣṭādhyāyī.
Today's solar modules should be nearing the end of their useful life after two decades. EU-funded scientists are focusing on designing solar cells that are more recyclable and also on minimising the environmental impact during their manufacturing.