Dr. Trinkle's primary research interests lie in the areas of robotic manipulation, multibody dynamics, and automated manufacturing. Under the continuous support of the National Science Foundation since 1989, he has written many technical articles on theoretical issues underpinning the science of robotics and automation. One of these articles was the first to develop a now-popular method for simulating multibody systems. Variants of this method are key components of several physics engines for computer game development, for example, NVIDIA PhysX and the Bullet Physics Library. Dr. Trinkle has served on the editorial boards of IEEE Transactions on Robotics and Automation, IEEE Transactions on Automation Science and Engineering, and Robotica.