Electron Micrograph (IMAGE) Max-Planck-Gesellschaft Caption Electron micrograph of the junction zone between the two valves of the pod. This wax-rich zone is capable of sealing micro-fissures when the pod is closed. High magnification of the open pod reveals the complex 3D structure of this zone: the wax (bright areas) can be seen between the rough elevations: it melts between 45 and 55 degrees Celsius, thereby sealing microscopic fissures in this area. Credit Max Planck Institute of Colloids and Interfaces Usage Restrictions Use of images is limited to editorial coverage of scientific topics relating to the activities of the Max Planck Society. Any kind of commercial use (including, in particular, the exploitation of images by means of sale or incorporation in image databases or image catalogues) as well as any promotional use/use for merchandise purposes, disclosure to third parties or granting of related rights to third parties is expressly not permitted. 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.