Third+power
131Power transfer — A power transfer or energy transfer is the process of passing working energy from one system or device to another.Transfers can be between energy types, as from electricity to mechanical motion, or within a type, from one mechanical motion to… …
132Third Goryeo–Khitan War — The Third Goryeo Khitan War was an 11th century conflict between the kingdom of Goryeo and Khitan forces near what is now the border between China and North Korea. The Goryeo Khitan Wars began in 993 with the first campaign and continued with the …
