Clyde, one possible reason why the lights you were looking at in the harbor dissappeared on you was simply that you might have ben looking straight at them. I'm an X-military pilot, and we were required to undergo 2 weeks of training in order to qualify to use the military version of night-vision goggles during flight. We had 4 hours of lecture per day: the anatomy of the human vision system, night-time optical illusions (there are at least 8-9,) and other factors that affect general night vision (general physical health, caffine consumption, etc.) The retina (any MD's out there feel free to jump in) has day-time and night-time receptors (rods & cones.) However, there are no night-time receptors at the normal focal point on the retina, hence no night vision. So, to "see" a faint light at a distance (at night) one may simply look just a little off to one side. This seems to work (it may take some practice) for me and a lot of other pilots. Try it on a dark night on land. I hope this has been helpfull for you. Smoke on the water..... Larry B. <Louisiana> *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.gasp-seakayak.net/paddlewise/ ***************************************************************************
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