Physics Mysteries, Appendix and Parkinson’s, Paralysis Treatment. Nov 2, 2018, Part 2 Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Water striders support their weight by surface tension and propel themselves by sculling with their hydrophobic legs. ( David Hu ) Hosted by Ira Flatow Produced by Science Friday and WNYC Studios