one mushroom (IMAGE) Penn State Caption To determine forces that needed to be programmed into the robotic picker, researchers took mushroom-picking-dynamics measurements using force sensors and an inertial measurement unit. Credit Penn State Usage Restrictions non commercial use only 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.