Sensor in Action (VIDEO) Duke University This video is under embargo. Please login to access this video. Caption A demonstration of the pressure sensor built by bacteria in action as a researcher taps out some Morse code. Credit Will (Yangxiaolu) Cao, Duke University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.