Comparison of Gradient Distribution Curves (image) Hokkaido University Share Print E-Mail Caption The gradient distribution curves in the real bamboo cross section (left) matched the curves calculated based on a mechanics theory for optimal flexural rigidity (right). The value of n is an internode number assigned from the root to the tip. Credit Sato M., et al., PLOS ONE, May 3, 2017 Usage Restrictions This image is copyrighted and can be used for reporting this press release if properly credited. 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.