Reflections on abnormal colour vision and theories of colour.

Reflections on abnormal colour vision and theories of colour.

Historically, physiology is the daughter of pathology. Healthy people struggling with an overwhelming nature had no time to bother with the workings of their organs, and doctors-naturallywere always preoccupied with disease. For them the argument from malfunction to normal function has become almost second nature and the successes of this approach in such fields as neurology, endocrinology, and...

Combination of Colour Favoured and Colour

In this research we described the effective Hamiltonian theory and applied this theory to the calculation of current-current (Q1,2) and QCD penguin (Q3,…,6) c quark decay rates. We calculated the decay rates of semileptonic and hadronic of charm quark in the effective Hamiltonian theory. We investigated the decay rates of D meson decays according to Spectator Quark Model (SQM) for the calculati...

Reflections on colour constancy.

F or more than two centuries, scientists and artists have come up with a range of ways to demonstrate that the wavelength composition over a whole scene can affect how we perceive the colour of the individual parts of that scene. The proportion of light of each wavelength reflected from an object can be highly beneficial in detecting or recognizing objects 1. However, to make use of that invari...

Colour-Vision and Colour-Blindness

Five cricketers with abnormal colour vision.

Five cricketers with abnormal colour vision, all of whom had mild deuteranomaly, reported occasions when they had lost sight of the ball when the background was the green grass of the playing field or the green of grassy banks or trees surrounding the playing field. While these five cricketers demonstrate that mild deuteranomaly does not preclude playing cricket successfully at a competitive le...