Instead we are using the Dorian Grey II applet which is not quite as smooth. However the Dorian Grey applet does allow you to use an animated gif as part of the scene and that just isn't possible with the David Griffiths applet. Using this applet however not only can you use an animated gif but you can add sound too. Waterwheels have been used for thousands of years and are probably one of the first examples of the use of technology by man. In our history they are probably responsible for the development of gears.
Water is taken by a channel and drops down onto the wheel.
It's weight then provides the power.