SandBot (1 of 2) (IMAGE) Georgia Institute of Technology Research News Caption In this poppy seed-filled trackway, Georgia Tech researchers conducted controlled experiments to study why robots have difficulty traversing sand and other granular media like dirt, rubble or slippery piles of leaves. Credit Image courtesy of Daniel Goldman 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.