I-Solid sesinye sezimo ezine ezixhaphakileyo sendlela ezimi ngayo izinto. Iimolecules kwi-isolids zisondelelene ngokungathi ziminxene, inye kuphela intshukumo ezinokuyenza, kukungcangcazela. Oku kuthetha okokuba ii-solids zinohlobo ezimile ngalo, hlobo olo lunokutshintsha kuhela xa kuthe kwakhoamandla athe asetyenziswa ukuzityhla okanye ukuzitsala. Akunjalo ke kwizinto ezingamanzi nakwizinto ezingumoya zona kaloku zisoloko zibhadula nje ziyabula nanini na zikhululekile, okokuyabula kwazo ke kuthiwa yi-flow.