A concept by an Arizona State Uni student to turn overhead signage on highways into turbines "that will be powered by the turbulence created from the passing cars."
Of course, you can always hook your billboard to a stationary bike or a treadmill.
Idea: Self-Powering Billboards
A concept by an Arizona State Uni student to turn overhead signage on highways into turbines "that will be powered by the turbulence created from the passing cars."
Of course, you can always hook your billboard to a stationary bike or a treadmill.
