The fundamental simplicity of quarks was not long-lived. As they became better understood it was necessary to introduce subdivisions. Although quarks are much too small to have colour or taste or any other physical characteristics we would recognize, they became clumped into six categories – up, down, strange, charm, top and bottom – which physicists oddly refer to as their ‘flavours’, and these are further divided into the colours red, green and blue.
Subdivisuon of Quark
