in Copenhagen customers of the hotels have taken the initiative can enjoy a good dinner in exchange for the generation of 10 Wh of electricity.
The production of electricity will be used by our customers, through the use of electric bicycles. It
estimated that riding for about 1 hour , we can get to generate 100 Wh .
good idea that could have happened here too:
power-exercise-production of clean energy
The human machine is by far the least expensive: when we assume
100 g. produce about 400 carbohydrate calories, enough to feed our bodies to walk for 37 km.
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