The Heart of the LIGNOSTATION (IMAGE) Technical University of Munich (TUM) Caption This is a high-frequency probe of the LIGNOSTATION when scanning a wood sample. Credit P. Biber/ TUM Usage Restrictions Can be published together with this Press Release. 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.