Politics (from Greek: πολιτικά, translit. Politiká, meaning "affairs of the cities") is the process of making decisions that apply to members of a group.
Factions among yourselves; preferring such To offices and honors, as ne'er read The elements of saving policy; But deeply skilled in all the principles That usher to destruction.
Philip Massinger, The Bondman, Act I, scene 3, line
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.
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