Please note: The MARS / WARS and FADS sessions are back on Skype for 2 weeks, but a couple of Lynne's sessions have been cancelled. Check the calendar for dates and times.
Wireless data from every light bulb
What if every light bulb in the world could also transmit data? Prof Harald Haas demonstrates, for the first time, a device that could do exactly that. By flickering the light from a single LED, a change too quick for the human eye to detect, he can transmit far more data than a cellular tower and do it in a way that's more efficient, secure and widespread.