The Tacoma narrows bridge in Washington state collapsed when winds coming up the canyon excited a resonant frequency in the bridge leading to positive feedback and ever increasing oscillation amplitude.
The Kansas City Hyatt Regency skywalk collapse on July 17, 198i during the Friday Tea Dance in the lobby killed 114 people due to a structural engineering error during construction, resulting in an infinite shear force applied to the concrete on the 4th floor walkway.
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.