Discourse Studies is a bimonthly peer-reviewed academic journal that covers the field of discourse analysis, especially articles that offer a detailed, systematic and explicit analysis of the structures and strategies of text and talk, their cognitive basis and their social, political and cultural functions. It specifically also publishes studies in conversation analysis. The journal was established in 1999 by Teun A. van Dijk.
It is of the nature of idea to be communicated: written, spoken, done. The idea is like grass. It craves light, likes crowds, thrives on crossbreeding, grows better for being stepped on.
A discourse is "a language or system of representation that has developed socially in order to make and circulate a coherent set of meanings about an important topic area."
John Fiske (1987). Television Culture. New York: Methuen. ISBN 0415039347.
There are solar panels that covert sunlight directly to electricity, and there are others that absorb the sun's rays for hot water. EU-funded researchers have made progress on a solar thermoelectric generator that generates electricity from the sun's heat.