The Original Question was:
I am a paleo student and was fascinated by your section on trilobite eyes in your DVD Times up Darwin. Do you have any further argumentation that points to design in trilobites?
Answer by Andy McIntosh
Prof. Andy McIntosh has written an illustrated article Trilobite Eyes in answer to this question. PDF here.
To get you started, we summarise his introduction:
According to evolutionists, trilobites evolved some 550 years ago. They were evidently water dwelling creatures living on the sea floor. Yet in spite of the belief they were primitive bottom dwelling creatures, their eyes contain sophisticated optics, and show clever use of materials to get the best image possible of their surroundings. Trilobite eye lenses are made of calcite crystals which splits a light path in 2 directions and so would produce double vision, unless they are carefully orientated. Furthermore, the round lens shape produces a very large depth of field, yet their lenses have an internal structure that corrects for spherical aberration, which is the distortion caused by the round shape of the lens. This last property is the result of a complex double lens.
Trilobites are believed to have evolved this doublet structure by chance naturalistic processes some 550 million years ago. The difficulty here is that the use and function of the doublet compensating lens, was only discovered by the brilliant mathematical scientists Descartes (1596-1650) and Huygens (1629-1695) in the seventeenth century, and such doublet lenses have required precision optical engineering to manufacture, all of which points to highly intelligent creative design.
For more details, download the PDF article Trilobite Eyes by Andy McIntosh here
The DVD Time’s Up Darwin referred to in the question, is available from the Creation Research webshop.
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