Helmholtz Price 2020 (IMAGE) Physikalisch-Technische Bundesanstalt (PTB) Caption 'Metrology at a glance' is the Helmholtz Prize's motto. Credit (PTB) 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.