Researchers with Force Probe (IMAGE) Georgia Institute of Technology Caption Researchers Lining (Arnold) Ju, Cheng Zhu (seated) and Yunfeng Chen are shown with the single-molecule force measurement tool used to study how platelets sense the mechanical forces they encounter during bleeding. Credit Credit: John Toon, Georgia Tech 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.