(IMAGE) Institute of Science and Technology Austria Caption Scratching method to remove the cone tip from a printed pillar. (Video still, Video available on request). Credit © Shengduo Xu | ISTA Usage Restrictions Free to use when reporting about paper. 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.