Re: The power of empiricism ;-)
Posted by Max Garth on 2013-05-06 00:49:31
in reply to The power of empiricism ;-) posted by David Dempsey on 2013-05-01 08:56:27
|Well I had a lot of chats with a PhD type scientist, and I did actually get under the water and looked around, for a lot of years from 1948, called Diving.|
When I gave up diving, like after a Noahs Ark got very interested in my right foot, and I decided that it was time to do something else I increased my interest in fishing,and after a chat with an Yank ex Maritime Mariner from the war years and he talked about Fly fishing in salt water I became intertested.
The colours of light are related to light, and our, fishes, animals eyes etc are set up to SEE that light. Get a prism and see what the light spectrum looks like, but it isn't there for tom foolery, its there for seeing, and that includes animals.
On the other hand fish live in a very hostile environment and their eyes are designed to see other things,but also to make "their" eyes difficult for other things to see. Its called camoflage, and their colours are designed to make them hard to see from all angles and depths.
Pelagics for and example see blue/green, simply because red isn't very visible in a totally blue/green environment like the open ocean and the one colour seen by ALL fishes, whether they are trichromatic, dichromatic or monochromatic
and at all depths, because its green, like chartruse.
The view from under the water to the surface is pretty simple to understand, its looking up at a big bright light,
just google it.
Maybe George can tell you what gives. I've gotta go out.
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