Enter the solar powered e-ink display. The comments in the most ridiculous parking sign story got me thinking, which is never a good thing. Why are we stuck with static signs stacked end-on-end?

Carroll County will purchase 10 new solar-powered speed signs that detect and display vehicle speeds as drivers approach, and work as traffic-calming devices. Skip to content All Sections ...

The for-sale signs placed out front of homes listed with Dream Town Realty will be illuminated after dark, fueled by solar power they collect during daylight hours. It appears to be a first for a ...

This Four-Seater Solar-Powered EV Could Enter Production Soon. Published: 18 Sep 2014, 12:43 UTC • By: ... Relying only on solar power to run a vehicle means it has to be very light, ...