On Friday 03 August 2007 22:59, Pam wrote: >> Highly reflective tape on cap/helmet, PFD and paddle is probably >> better, more fail safe, and what we use - combined with florousent >> tape on one side of the paddle blades (highly reflective on the other >> side) - we also have flourosent vests we can don, on top of the PFDs, >> and strobes! > > I must admit to slight confusion here. What is the difference between > fluorescent tape and highly reflective tape? I have my paddle blades > painted with yellow "fluorescent" paint and then have reflective tape on > them, but I am unsure what is most visible after dark. > Fluorescence is an effect where a high energy photon triggers a low energy photon - often it's a UV photon that triggers a red, ambler, green, blue, or yellow photon - especially visible in fog, where the sun's UV rays still trigger the photons in paddle jackets, PFDs, et cetera. Reflective tape just reflects light: shine a red light on it and you'll get a red reflection, shine a red light on a flourescent painted surface and you'll most likely get nothing! So a mix is best, as I wrote before: One side of our paddles have fluorescent tape, the other red reflective tape! See http://foldingkayaks.org/gallery/XXL/Dayglo and the following four pictures! All the best, Tord *************************************************************************** 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/ ***************************************************************************Received on Sat Aug 04 2007 - 12:00:27 PDT
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