Structure Based on Cones of Coniferous Wood (image) Technical University of Munich (TUM) Share Print E-Mail Caption Movable components in buildings such as blinds, the structure of which is based on cones of coniferous wood, which open or close in the event of dryness due to the different swelling behaviour of their fabric. Credit C. Zollfrank/ TUM Usage Restrictions Can be published together with the news release. Share Print E-Mail 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.