We played football on the canal again last night under some nearby street lights. It was interesting to see the difference in the visibility of the kayaks. Yellow was by far the most visible. Orange was second and red a distant third. Blue disappeared. PFD color seemed irrelevant. It simply was not a large enough surface to show up well. I guess that is where reflectivity comes into play. Jim et al *************************************************************************** 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/ ***************************************************************************
At 10:42 AM 10/24/02 -0400, jfarrelly5_at_comcast.net wrote: > We played football on the canal again last night under some nearby > street lights. Is that like kayak polo but with a longer ball? You didn't play in touring boats, did you? Steve Cramer Athens, GA *************************************************************************** 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/ ***************************************************************************
We use WW kayaks. I unfortunately don't know the rules to kayak polo. We are not allowed to paddle with the football, but can dribble it by throwing it at least 5 ft ahead of our boat. You can only score by passing. Blocking with a paddle is OK as long as you don't throw the paddle. You can dump other paddlers if they can roll. This part can turn into quite an event for the really good WW paddlers. Eskimo rescues all around for the non rollers who self dump. I was flat run over by a WW canoe last night and was forced into my first must do off side roll. It worked out well. I was pinned against the bank and could only go one way. The rocks my hands scraped against convinced me to buy a good helmet. Jim ----- Original Message ----- From: "Steve Cramer" <cramersec_at_charter.net> We played football on the canal again last night under some nearby > > street lights. > > Is that like kayak polo but with a longer ball? You didn't play in touring > boats, did you? > > > Steve Cramer > Athens, GA *************************************************************************** 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/ ***************************************************************************
At 12:47 PM -0400 10/24/02, jfarrelly5_at_comcast.net wrote: We use WW kayaks. I unfortunately don't know the rules to kayak polo. [SNIP] Slightly OT, but I saw a kayak polo match last year and it was great fun. I'd love to try it. They have specialized boats that look like very long low ww slalom boats. -Patrick *************************************************************************** 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/ ***************************************************************************
> We played football on the canal again last night under some nearby street lights. It was interesting to see the difference in the visibility of the kayaks. Yellow was by far the most visible. Orange was second and red a distant third. Blue disappeared. PFD color seemed irrelevant. It simply was not a large enough surface to show up well. I guess that is where reflectivity comes into play. Also the spectral characteristics of both the light source and the receiver (=eye) are important. The human eye is colorblind at low light, as well as being much more sensitive to red and yellow. Streetlights, in particular the common orange low-pressure Sodium ones, only emit yellow light , so everything else looks dark. Other light sources, like incandescent bulbs, high-pressure Xenon (blueish-green) as used in stadiums, or high-pressure Sodium (warm white) show color much better. regards, Kees *************************************************************************** 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/ ***************************************************************************
Bull's eye! I was waiting for a very smart person to mention this point. A point that I suspected but could never explain. The light source was the common street light you mentioned. Jim ----- Original Message ----- > > We played football on the canal again last night under some nearby > street lights. It was interesting to see the difference in the visibility > of the kayaks. Yellow was by far the most visible. > Also the spectral characteristics of both the light source and the receiver > (=eye) are important. > > The human eye is colorblind at low light, as well as being much more > sensitive to red and yellow. > > Streetlights, in particular the common orange low-pressure Sodium ones, only > emit yellow light , so everything else looks dark. > Kees *************************************************************************** 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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