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By B. Sapoznik  As time passes, humanity is experiencing a growth in its demand for energy. More things happen worldwide, and we need some sort of fuel to make those things happen. As obvious as it might seem, this demand is what sparked our extreme fossil fuel usage some three centuries ago, when the Industrial Revolution started. However, in the past few decades, scientists have realised that fossil fuels aren’t the most ‘environment-friendly’ fuel sources we can utilize, as they are non-renewable (can’t be renewed into fuel after its usage), and they produce greenhouse gases when processed.
In the search for better fuels, we have progressed into renewable energy sources. These sources aren’t physical materials that are converted into their due energy and burnt out, but are sources of natural forces. For example, wind turbines are a form of renewable energy which uses wind force to spin a turbine and produce motion around a generator, which will output this energy into a transformer and into external power cables. Another famous source is the hydroelectric dam, which uses the gravitational potential energy of a water source to spin down a turbine due to gravity, resulting in motion (subject to transformation into energy). In modern times, electric cars (that intake electricity as fuel instead of petroleum/diesel/gas) have been designed as an efficient transportation apparatus to replace fossil fuel usage for a ‘green future’. These cars are charged through charging stations, in which these stations pull an electric current and that current is wired into a plug which connects to the car’s lithium battery and delivers the energy to the car’s electricity reserve. A downside to electric cars is the charging impracticality. Especially in Brazil, it is very expensive to build electric charging stations. And, worldwide, electric car batteries can take from 0.5-12 hours to fully conduct the electricity transaction, as opposed to the almost-immediate fuel input of non-electric cars. Inside the car, the energy from the battery is directed to the motor, where it generates electromotive force as it is converted into power. Finally, this power is used by the motor to turn the wheels and move the car. This invention revolutionizes humanity's ongoing battle against global warming, as it reduces the global consumption of fossil fuels. Therefore, electric cars are essential for the global population if we want to combat climate change. In addition, the companies who served a pivotal role in the commencement of electric cars aren’t very clear, as the electric motor was an invention that was fanaticized of for decades. However, in very modern times, the largest commercializing company was Tesla, which was followed by many other companies after their early models. Interestingly enough, electric cars date back to the late 1800s and early 1900s, though they weren’t used due to the restricted industry and manufacturing and the counter-efficient cost rates of these models compared to using regular non-electric engines. Nowadays, electric cars are fortunately becoming more popular, bringing us some steps closer into reducing the global carbon footprint and reaching carbon neutrality for a ‘greener future’. Sources: https://evocharge.com/resources/how-does-ev-charging-work/ https://www.mini.co.uk/en_GB/home/range/more-mini-electric/how-do-electric-cars-works.html#:~:text=Electric%20cars%20work%20by%20receiving,the%20wheels%20for%20instant%20acceleration. https://pod-point.com/guides/driver/how-long-to-charge-an-electric-car#:~:text=Summary,with%20a%207kW%20charging%20point.
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