Shake Table (IMAGE) Vanderbilt University Caption The 'ring' where the bacteria compete is a flask filled with liquid culture media into which two strains of bacteria are added. The flask is then placed on a shake table to ensure the bacteria are continually coming into contact. Credit Anne Rayner, Vanderbilt 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.