Ecoli-rotating (IMAGE) Texas A&M University Caption Single molecule microscopy reveals a roughly 50 nanometer motor in the bacteria shown here as a bright yellow spot. Credit Dr. Pushkar Lele/Texas A&M Engineering Usage Restrictions none License Original 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.