The Unified Principle of Colour

<p>Can we say when where and how the colours we see are formed? Are colours present like the flowers in a garden or just an appearance? A simple surprising fact <em>The Unified Principle of Colour</em> brings answers to age-old questions about colour and colour relationships. To the physics of light and the biology of vision a third discipline is added: the process of consciousness that enables perception. It shows that the observer a living being has an essential role in producing the colours we perceive.</p>