What Part Does Energy Play in Our Lives?
Even a person in a primitive community, living without machines, depends on energy in his life, for energy is connected with all of his movements, his eating, his breathing. For others, living in modern, industrialized communities, energy is used in factories, transport, lighting, heating, cooling, communication, and recreation. Gasoline-powered automobiles are used for transportation. Rooms are heated with energy produced from oil and lighted with electricity produced from coal. Kitchens are equipped with products from factories made by machines driven by natural gas, oil, or electricity, and the appliances consume these fuels themselves.
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