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Electrical Generator
In electricity generation, a generator, also called an ''electric generator'', ''electrical generator'', and ''electromagnetic generator'' is an electromechanical device that converts mechanical energy to electrical energy for use in an external circuit. In most generators which are rotating machines, a source of kinetic power rotates the generator's shaft, and the generator produces an electric current at its output terminals which flows through an external circuit, powering electrical loads. Sources of mechanical energy used to drive generators include steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines and even hand cranks. Generators produce nearly all of the electric power for worldwide electric power grids. The first electromagnetic generator, the Faraday disk, was invented in 1831 by British scientist Michael Faraday. The reverse conversion of electrical energy into mechanical energy is done by an electric motor, and motors a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Food Therapy
Chinese food therapy (, also called nutrition therapy and dietary therapy) is a mode of dieting rooted in Chinese beliefs concerning the effects of food on the human organism, and centered on concepts such as seasonal eating and in moderation. Its basic precepts are a mix of Taoist Wuxing and eight principle theory that are concepts drawn from the modern representation of traditional Chinese medicine. Food that conform to the mode are called ''yaoshan'' (). Food therapy has long been a common approach to health among Chinese people both in China and overseas, and was popularized for western readers in the 1990s with the publication of books like ''The Tao of Healthy Eating'' () and ''The Wisdom of the Chinese Kitchen'' (). Origins A number of ancient Chinese cookbooks and treatises on food (now lost) display an early Chinese interest in food, but no known focus on its medical value. The literature on "nourishing life" () integrated advice on food within broader advice on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
