Skin cuts (IMAGE) Georgia Institute of Technology Caption Two skin abrasions (cuts) healing thanks to blood clotting, a physics-based phenomenon that must occur to stem bleeding after an injury. Credit 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.