Page 94 - Design in Nature

92 DESIGN IN NATURE

A
Rhk T PDE
Rod Outer Segment Rh Disc Exchanger
Channel

Photon

Axoneme External membrane

Cilium

The figure above illustrates the biochemistry of vision. Symbols indicate; RH=Rhodopsin,
Rhk=Rhodopsin Kinase, A=Ariestin, GC=Guanylate Cyclase, T=Tranducin,
PDE=Phosphodiesterase.

World Records. In these shows, tens of thousands of domino pieces are so
strategically placed that tipping the first piece activates the entire system. In
some areas of the domino chain, many apparatuses are installed to start a
new sequences of reactions, e.g. a winch carrying a piece to another location
and dropping it exactly at the place necessary for a further sequence of
reactions.
Of course, nobody thinks that these pieces have been "coincidentally"

brought to their precise locations by winds, quakes or floods. It is obvious to
everyone that each piece has been placed with great attention and precision.
The chain reaction in the human eye reminds us that it is nonsense to even
entertain the thought of the word "coincidence". The system is composed of