Ndi chidwi chochulukira padziko lonse lapansi ku mphamvu zongowonjezwdwa, mphamvu ya dzuwa, monga gwero lamphamvu komanso lokhazikika lamphamvu, ikulandira chidwi chochulukirapo. Muukadaulo wogwiritsa ntchito mphamvu yadzuwa, makina otsata ma radiation a solar, makamaka zodziwikiratu zowongoka bwino za dzuwa ndi ma radiation ...