Photos of Engine Hall:

• Oil Engine: 4-stroke compression ignition, single cylinder horizontal engine, runs on light diesel oil, hand starting, HP: 6,550 RPM. Manufactured by Ruston and Hornsby (India) Pvt. Ltd.



• Persian Wheel or Saqiya:



• Human muscle power:



• Wind Mill: Dutch Octagonal Drainage Mill, South Holland Type (Dutch: Kloeke Poldermolen): These wind mills were developed in Holland in the second half of 16th century. A large part of Holland is several feet below sea level and in early days the country consisted of marshes with pools of water. The main functions of these wind mills were to remove excess water from the low lying areas with the help of a chain of scoops or buckets. It was also possible to turn the cap on the top of these mills from below, whenever the direction of the wind used to change with the help of a tail-pole. The sails when they rotated with the wind used to turn the scoop wheels which in turn lifted water from a lower level and empties in to a higher level. Usually water was not lifted beyond 4 to 5 feet. For draining pools and lakes of large depths, a series of wind mills were erected and each set of wind mill would pump water in to a kind of intermediate storage basins or network of canals. From the large storage canal water would be thrown into the river and would flow into the sea.



• Wave Motion: Energy is not only continuously changing form- it is also continuously moving from one place to another. One way this occurs is through wave motion. Waves are self propagating disturbances that travel through material media transporting energy without transport of the medium itself. In any wave motion the particles merely oscillate, transversally or longitudinally, about their equilibrium positions. This contrasts a wave with any other form of energy which always involves transfer of matter. Waves can be either 1) transverse wave eg. water waves or ripples and 2) Longitudinal waves, eg. sound waves.

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