Since prehistoric humans rub sticks together for fire, up through the fossil fuels that enabled the industrial revolution, energy has been a key component of human development as a species. However, it has also created mankind's biggest challenge. Solving it will take all our ingenuity.
Energy is the way in to mankind's global control. Not simply the fly fuel that permits us to navigate whole landmasses in a couple of hours, or the bombs we construct that can explode whole urban communities, however the huge measures of energy we as a whole utilize each day. Think about this: a resting person needs about a similar measure of energy as an antiquated brilliant light to support their digestion - around 90 watts (joules each second). In any case, the normal person in a created country utilizes more like multiple times that sum, on the off chance that you include the energy expected to get around, construct and warmth our homes, develop our food and the wide range of various things our species gets up to. The normal American, for instance, devours around 10,000 watts. That distinction clarifies a great deal about us - our science, our civilisation and the unfathomably rich ways of life we as a whole lead - analyzed, that is, with different creatures.
