I've been thinking again about the difference between human vision and that of birds/insects. Our visible spectrum comprises the rainbow colours as shown here. These photos were taken of a very small holographic diffraction grating film - when it is placed in direct sunlight the white light is split into its constituent parts. Birds are tetrachromats and so can see ultraviolet in addition to these colours. Snakes see infrared. If we could only see what the animals see these images would appear very different.
This light installation is by Peter Erskine - he achieved this amazing prismatic light effect by using heliostats and prismatic film. I've been thinking that I could use a prismatic film to coat the windows on one of the hides - the rainbow display is only visible in the shadows of the interior - all that is needed is sunlight! The heliostat is used to track the sun - I'd have to make do without that.
No comments:
Post a Comment