Solar panels supply us with solar energy. They are an assembly of photovoltaic cells, which

Dams are structures that are built across rivers. They are multipurpose as they can be

Engines are machines that are used to change any form of energy into mechanical energy.

Lithium-ion batteries or Li-ion batteries are rechargeable batteries made of cells that use lithium ions.

Integrated circuits, also known as chips or microchips, are the main building blocks of most

Robotics is a field where science, technology and engineering come together to design and construct

Drones are also known as unmanned aerial vehicles (UAVs). They are essentially aircraft that operate

The oldest wheel found in archaeological excavations is about 5,500 years old and dates from

A telephone is defined as an instrument that facilitates the simultaneous transmission and reception of

Windmills are machines that use the wind to generate power.