Technology: Rendered Facades, but with What Finish?Coloured, Painted or Coated?
The encyclopedist Isidor of Seville (560-636) described colour as "captive sunlight", while Sir Isaac Newton attempted to fit the colours of the rainbow into a linear, measurable spectrum (ill. 3), and Johann Wolfgang von Goethe developed a non-scientific colour circle (ill. 2) as part of his theory of colour. According to a definition in modern German standards, "Colour is the facial sensation of part of the field of vision that appears unstructured to the eye, by means of which that part - observed with a single, unmoving eye - can be solely differentiated from a similarly unstructured adjoining area seen at the same time.
