SailNet Community - View Single Post - Anchor light
Thread: Anchor light
View Single Post
post #23 of Old 07-27-2011
Senior Member
CaptainForce's Avatar
Join Date: Jan 2006
Location: living aboard since 1972
Posts: 1,715
Thanks: 0
Thanked 12 Times in 12 Posts
Rep Power: 10
I'm compelled to bring back the characteristics of parallax and the human perceptions related to steroscopic vision. Like many predators and those that swing from one branch to another, we have excellent depth perception. As objects become closer our brain interprets the angle from our two eyes as distance. The hawk must snatch the rat from the rock without hiting the rock. There are limitations to this perception as our eyes are close together,- oh, to be Hammerhead Sharks and know just how far away everthing is! So flip the optics around and place two light sources far apart instead of the two eyes. As you approach the lights move further apart across our range of vision. Lights far apart and high from the horizon give us more information about distance. The best information that an anchor light can provide is that you are coming closer! Take care and joy, Aythya crew
CaptainForce is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome