Category: Energy

traffic lights importance 2

The Importance of Traffic Lights

When people think about traffic lights, there is always the association with a 3-lamp light that has green at the bottom, yellow in the middle and red at the top. However, public transport generally...

alternative energy sources 0

Alternative Sources of Energy

The search for alternative sources of energy is a worldwide effort. There are various scientists, government bodies and universities around the world all trying to find ways of replacing conventional fossil fuels with the...