FEEDBACK The exhibition at the New York Hall of Science helped me to explore how machines and living things sense changes in their environment and how they adapt as a result. A wide range of mechanical and biological systems use the same essential method, called "feedback". At the museum I was able to pedal an airplane propeller, direct a chain on a spinning windmill and observe an old-fashion steam engine as I explored self-sensing machines …showed first 75 words of 493 total…

…showed last 75 words of 493 total…