Green Inventions
This is the Crown Plaza Hotel in Denmark. Around 15 minutes of cycling (10 watt hours of electricity produced) will get you a free meal.
This London disco claims that the energy of the dancers, dancing on the floor, is harnessed and used. It meets around 60% of the club's energy demands
The Zen Garden Sink has a channel to water a plant while you wash your hands. The plant does not get the soapy water. Isnt this ingenious!
This is a light switch designed to create awareness in kids. The face expression and the colour changes if the light is kept on for several hours.
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