Shakendiagnostics Drops (image) University of Washington Caption Drops of red and blue liquid move along the upper and lower surface of the vibrating UW platform at speeds up to 1 inch per second. This combined image shows drops as they move toward the center and merge. Credit Karl Bohringer, UW Usage Restrictions With credit 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.