Not rough surfaces, exactly, but there was a short article in Sci. Am. recently on the hydrodynamic advantages of scalloped bumpiness on the leading edges of humpback flippers. TFJ ---------------------------------------- The information contained in this e-mail message may be privileged, confidential, and protected from disclosure. If you are not the intended recipient, any further disclosure or use, dissemination, distribution, or copying of this message or any attachment is strictly prohibited. If you think that you have received this e-mail message in error, please delete it and notify the sender. ======================================== *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************
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