Drill (IMAGE) American Society of Agronomy Caption Doug Weaver, also on the BATS research project, stands by one of the large drills used to create the boreholes for experimentation. Credit Brian Dozier Usage Restrictions For use with this story 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.