EEB382H1 Lecture Notes - Beta-Carotene, Color Vision, Classical Conditioning
5 Nov 2012
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Document Summary
Photon acts like a wave: transfer of energy and transfer of mass (i. e a person standing in a stadium transmitting "the wave" stays in one place, but transfers energy) In water, complicated vision light: long wavelengths (red/orange) absorbed: takes away from environment. Anything organic takes out short ones (blues/purples) Algae absorbs most of the wavelengths (re ects green) Small molecules scatter blue light, thus we see sky as blue (blue is a short wavelength) (just like water with water molecules-scatters short wavelengths) Light scattered from many different things and hits the sh"s eye. Creates the veiling effect and makes everything look cloudly-you lose images because of big droplets of water in fog (scattering wavelengths of light) Sh: spend entire life swimming through fog. Different wavelengths that dominate in different aquatic backgrounds. 100m down: nothing left but blue (all long waves absorbed at top) Thus deeper you go, the bluer the light becomes. Below about 30m, not very much light left.
