Silk's Many Strengths (VIDEO) U.S. National Science Foundation This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Future research could spin up new medical and materials breakthroughs based on silk, but there are still uncertainties about how spiders and silkworms make the natural kind. Credit David T. Wright and Dena Headlee, National Science Foundation Usage Restrictions public domain; some components licensed under creative commons 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.