Energy is what helps things work or move. In the same way as your body needs the energy that it gets from food to be able to move and function, machines and devices need energy to be able to work' ...

JONNY NELSON: Energy. There are lots of different types and lots of different ways of storing it. Chemical energy in a sparkler, elastic potential energy that fires a toy into the air, and many, many ...

Digital generated image of multiple environmental rectangular cross sections with different types of energy supply. Sustainable city concept. Using data from this survey and a variety of other sources ...