Revolving doors are ubiquitous in our cities. Why not use them to generate free energy? The Revolution Door by Fluxxlab would...
[youtube]http://www.youtube.com/watch?v=X5z6jbFTCTM
Revolving doors are ubiquitous in our cities. Why not use them to generate free energy? The Revolution Door by Fluxxlab would do just that. It converts the kinetic energy used to push the door into electricity. Several similar projects are in operation worldwide. Now we're not just spinning our wheels.
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