soft cell Nautilus chamber (IMAGE) PNAS Nexus Caption Soft cell as geometric model of the Nautilus chamber. In the right panel the geometric model is shown next to the actual chamber. Credit Lajos Czeglédi and Krisztina Regős. Usage Restrictions None License Original 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.