In Physics, energy is the quantitative property transferred to an object in order to perform work on, or to heat, the object. The law of conservation of energy states that energy can be converted in form. Common forms of energy include electric, chemical, radiant (carried by light) and thermal. Mass and energy are closely related, the relation theorised by Albert Einstein by his famed formula. Living organisms require energy to stay alive, such as the energy humans get from food. Energy sources familiar to all include fossil fuels, nuclear and renewable sources. In common parlance, energy is understood as the strength and vitality required for sustained physical or mental activity. In short, while the amount of energy in aforementioned forms required to keep the wheels of its economy in eternal motion rises as time passes, energy required for sustaining physical and mental activity of the nation’s populace has to be derived from food that must also be produced in adequate quantities. In order to realise these two goals, in addition to ensure that food (as a source of energy to work) reaches the land’s people, the factor of employment to earn income looms large, thereby leading to the energy-employment equation.
The nuances of generating energy by the different means such as hydro, thermal, nuclear, solar, wind and waves as well as reaching it to homes, industries, open spaces that require light, agricultural activities and so on may not be within the grasp of lay people in the land. They react and even panic no sooner than energy becomes unavailable due to whatever reasons, seeing the administration in a tight spot. Shortfall in the other source of energy, namely food, doesn’t require elaboration.
