Wireless sensors that require no external power source or battery maintenance? If this can be perfected, hopefully the next thing that can be tackled is the common household smoke detector! Seriously, this is an important advance in sensor technology and will enable many things that we cannot even think of right now.
How much of a temperature differential is required between the "warm surface" and the room for the system to work? How does the device efficiently shed heat so that it doesn't rise to the substrate temperature and lose the ability to generate power?
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.