Water Pump:
- A water pump is used to draw water from a well. It works by creating a vacuum that lifts the water up to the surface. There are different types of water pumps such as centrifugal pumps, submersible pumps, and hand pumps, each with its own method of drawing water.

Flour Mill:
- A flour mill is used to grind wheat into flour. It consists of two circular stones, one stationary and the other rotating, that crush the wheat grains into fine powder. This process allows for the production of flour that can be used for baking and cooking.

Hydroelectric Generator:
- A hydroelectric generator is used to generate electricity by harnessing the power of flowing water. It works by converting the kinetic energy of water into mechanical energy, which is then converted into electrical energy through a generator. Hydroelectric generators are often used in dams and rivers to produce clean and renewable electricity.

Windmill