I recall a free tool that allowed you to model physical systems -- like putting rocks in the air and setting up a see-saw balance beam and suchlink, then pressing "go" and simulating what woudl happen -- I know this isn't an ee-related tool, but I wish I could find it again.
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.