Kinetic energy water wheels

Water, the other source of kinetic energy used in antiquity, saw wider application to machineiy than did wind. The first evidence of the use of waterpower comes from the first century B.C.E., simultaneously in both China and the Mediterranean region. In China the preferred method of tapping the power of falling water was the horizontal water wheel, named after the plane of rotation of the wheel. Around the Mediterranean, the preferred form was the vertical... 

The type of turbine chosen for any hydro scheme wiii depend upon the discharge rate of the water and the head of water avaiiable. A Peiton Wheei is a water turbine in which speciaiiy shaped buckets attached to the periphery of the wheel are struck by a jet of water. The kinetic energy of the water turns the wheel which is coupled to the generator. 

Mechanical, like water stored behind a dam (potential energy) or like high speed heavy wheel used to start marine engines (kinetic energy). 

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