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Blade Movement: The magnetic field causes a part of the motor, called the motor shaft, to spin. This
shaft is connected to the fan blades, making them rotate.

Air Circulation: As the blades turn, they push air forward, creating a cool breeze. The way the
blades are shaped and angled helps them move the air efficiently.

Energy Conversion

Electrical Energy: The fan starts with electrical energy from the power outlet.

Mechanical Energy: The motor converts this electrical energy into mechanical energy, which makes
the blades turn.

Kinetic Energy: As the blades spin, they create kinetic energy, which is the energy of motion. This
kinetic energy moves the air around, creating a cooling effect.

What is a Windmill?

A windmill is a structure that uses wind to generate energy. Traditionally,
windmills have been used to grind grain or pump water, but modern windmills,
known as wind turbines, convert wind energy into electricity.

How Does a Windmill Work?

Wind Power: Wind is created by the uneven heating of the Earth’s surface by the sun. This causes
air to move from high-pressure areas to low-pressure areas.

Blades Capture Wind: The blades of a windmill are
designed to catch the wind. When the wind blows, it
pushes against the blades, causing them to spin.
Generator: The fast-spinning shaft turns a generator,
which converts the mechanical energy from the moving
blades into electrical energy.

Electricity Distribution: The electricity generated is
then sent through power lines to homes, schools, and
businesses.

Why Use Wind Energy?

Renewable Resource: Wind is a renewable energy source,
meaning it won’t run out as long as the sun shines and the
wind blows.
Clean Energy: Wind energy doesn’t produce air pollution or
greenhouse gases, making it environmentally friendly.

Sustainable Power: Using wind to generate electricity helps
reduce reliance on fossil fuels, which can harm the planet.

Mechanical Concepts with Mechatron Kit 55