At the turn of the 20th century cities were dirty places to live. Coal was the primary fuel for industry and heating, while horses and wagon were the primary means of transport. This mean that industrial cities had very polluted air and streets. Citizens suffered under all this pollution and…
Any vehicle propelled by an electrical energy source is an electric vehicle (EV). The electrical energy source can be a battery, fuel cells, or solar panels. The key is that it is portable and refillable. Propulsion of EVs can be provided by various types of drive-trains as well. The most…
Studies have shown that climate change exaggerates weather patterns. Failing to tackle global warming will result in a higher frequency of intense storms, heatwaves and floods. Extreme weather is already one of the most dangerous threats to civilization. Greenhouse gases are heating up the atmosphere, increasing the acidity of the…