Music and the Making of Modern Science

274 Chapter 18

A

B

Figure 18.1

Two figures from Schr ö dinger ’ s “ Outline of a Theory of Color Measurement for Daylight Vision ” (1920).

(a) The color cone, showing the three-dimensional manifold of color vision with the curve of the spectrum.

(b) The curved geodesics (lines of shortest distance in color space) shown on a chromaticity diagram; the inner

area corresponds to the range of human daylight vision.