Katie Prowd and Dr Darryl Woodford (IMAGE) Queensland University of Technology Caption Katie Prowd and Dr Darryl Woodford are running the G20 Hypometer, which tracks the most-tweeted about G20 countries. Credit Erika Fish Usage Restrictions For media 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.