Are Chart Lights Steering Us Wrong?

PS Tech Editor shares tips on preserving night vision, and the problems with night lighting.

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As the sun goes down your eyes begin to adapt. At first your pupils dilate. Then photo-sensing chemicals needed in daylight drain away, and vision becomes over 50 times more sensitive, often without our notice until the sun is well below the horizon. In order to preserve night vision, referred to as dark-adapted vision, safe […]
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Drew Frye, Practical Sailor’s technical editor, has used his background in chemistry and engineering to help guide Practical Sailor toward some of the most important topics covered during the past 10 years. His in-depth reporting on everything from anchors to safety tethers to fuel additives have netted multiple awards from Boating Writers International. With more than three decades of experience as a refinery engineer and a sailor, he has a knack for discovering money-saving “home-brew” products or “hacks” that make boating affordable for almost anyone. He has conducted dozens of tests for Practical Sailor and published over 200 articles on sailing equipment. His rigorous testing has prompted the improvement and introduction of several marine products that might not exist without his input. His book “Rigging Modern Anchors” has won wide praise for introducing the use of modern materials and novel techniques to solve an array of anchoring challenges. 

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