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Traffic vibration on bridge generates electric power

The Metropolitan Expressway Co., a company managing the construction, renovation, maintenance, and administration of expressways in and around Tokyo, has announced a project to generate electricity by converting energy created by the vibration resulting from automobiles driving on the Shuto (Metropolitan) Expressway. This is a large scale application of something we already knew about at human scale. It really looks like someone read our suggestion for its application. The principle is reversing how loudspeakers work: loudspeakers vibrate and ... Read more →

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