Energy wise, everything boils down to watts. It is impossible to get a larger return of watts than what is put in. There is always a certain percentage of loss in the conversion of one type of energy to another. Friction and heat are the factors that dictate the amount of loss. A transformer converts some of it's energy to heat. An engine converts some of it's energy to heat from combustion and some of it's energy is converted to heat from friction. There is no such thing as 100% efficient. There is always a byproduct of some kind siphoning off a little of the input. Can't produce 2 watts from 1 watt.
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Today's Featured Article - The David Brown Rose Badge - by Samuel Kennedy. In the 13th century civil war was raging in England. Two English noblemen were involved in a conflict which became known as the War of the Roses. The Duke of York had as his emblem a white rose and the Earl of Lancaster had a red rose. Today the white rose is the official emblem of the county of Yorkshire and the red rose has been adopted by the neighboring county of Lancashire.
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