I spend a lot of my day (and night) talking to people. In fact, if I were to total all of the activities in my life – and probably the lives of most people I know – the largest single activity on which time is spent (although curiously perhaps not by level of effort) across my entire life has been communication. Words have meaning. Continue reading
The General Robotics, Automation, Sensing and Perception (GRASP) Laboratory at the University of Pennsylvania (my alma mater) has produced a number of fascinating experiments lately focused on the uses of quadrotor helicopter robots. Four-propeller aircraft designs were popularized in the 1920s and 1930s to help solve some of the persistent issues with vertical flight (i.e., torque-control). 

Unless you’re living in 