500 TeraHertz border-crossing “light bridge”
by Thomas from The SWLing Post on (#4VKVK)
Many thanks to SWLing Post contributor, Ed, who writes: SWLing Post readers might be interested in hearing this BBC World Service radio documentary about a political tech art project that uses visible light beam voice comms across the Mexico<>U.S. border to bridge communities. There's a website that explains how it all works. I guess ~500 ["]