SolarEnergySolarenergyisviewedasthecleanandrenewablesourceofenergyforthefuture.Solarenergycanbederiveddirectlyasinthefollowingexamples:-Sunlighthitsaphotovoltaiccell(alsocalledaphotoelectriccell)creatingelectricity.-Sunlighthitsthedarkabsorbersurfaceofasolarthermalcollectorandthesurfacewarms.Theheatenergyiscarriedawaybyafluidcircuit.-Sunlightstrikesasolarsailonaspacecraftandisconverteddirectlyintoaforceonthesailwhichcausesmotionofthecraft.-Sunlightstrikesalightmillandcausesthevanestorotate,althoughlittlepracticalapplicationhasyetbeenfoundforthiseffect.-Sunlightisfocusedonanexternallymountedfibreopticcablewhichconductssunlightintobuildinginteriorstosupplementlighting.用心爱心专心
