S-Shaped Curves with the Same Phase (image) Science China Press Caption This image shows a set of S-shaped curves with the same phase. (a) The parallel distance 800 μm; (b) the parallel distance 200 μm (aluminum film thickness 200 nm). Credit ©Science China Press Usage Restrictions None 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.