I am having real problems fitting nuetrinos into my mental models of the world,when i think of strong,electromagnetic and gravitational interactions i find it much easier to work with because theres always something tangible i can relate it to,fermions,light or falling for example,but when i try to fit the weak interaction in i get lost,is there a weak field? how far can W and Z bosons travel?what are the nuetrinos doing all this time if not interacting,do they intereact with eachother ,do superposition rules apply to them?if so can they be made coherent? every time i try to fit them in i feel lost,does anyone else have such problems fitting them in to their pictures of the world? when i first read of them,the nuetron intercations seemed quite simple,the idea of a nuetrino causing flavour change then spitting out an electron and anti nuetrino seemed fine,but the more i learn of them the less they make any sense to me,are they just the different between the energies exchanged in the interaction,please help me im lost! is there a starting place you guys would suggest for getting them more under my control,books i should read etc?