utc hi jorgenumata i liked all the additions you have made i myself have worked in metals on the physics side so i can add some things but actually for the overall structure i think it would be useful to discuss some of the ways that md is used in different fields on the talk page so that we can incorporate the different uses of md more fully most people are focused on their on field and don't see outside it me included so it is kind of hard to incorporate all the different things into one article the merge discussion with mm is an example metals cannot be modelled by force fields they are completely incompatible with the force field view of molecules and from reading the mm page mm only uses force fields so it seems impossible to merge the articles anyway enoough of my blabbing the things that i am interested in knowing are what how md is used in different fields fluid aerodynamics do fluid dynamics aerodynamics people use the billiard ball approximation of atoms to model fluids and are these methods considered molecular dynamics if they consider each atom individually metals we don't use force fields generally tbsma or equivalent is the least accurate most empirical that can be used tight binding and ab initio are far more common anyway i can add a lot of metals things myself so don't need much input here semiconductors again force fields are not used however requires very different approximations to metal simulations again i can add stuff to the article on these chemists what exactly do chemists study are the chemical reactions always studied within a solvent or are they studied on isolated chemical compounds is it always important to correctly model the temperature and pressure or are these secondary considerations in chemical md simulations bio similar to chemistry are temperature and pressure important do proteins get modelled within the context of a solvent or are conformations studied on the basis of a single protein molecule with no external interactions so i'll try to add some metals and semiconductor things to the article but i don't want to break the chem bio side will come back in maybe a week and try to do some additions november