english: Now, David builds mathematical models of this and then he tests those in the lab, but before he does that, he works with dancers to figure out what kinds of models to build in the first place.
non_english: Dejvid pravi matematičke modele ovih vlakana i testira ih u svojoj laboratoriji, ali pre toga, radi sa plesačima kako bi se odlučio kakav model uopšte da sačini.