▁director , ▁and ▁as certain ▁whether ▁both ▁the ▁director ' s ▁object ives ▁and ▁the ▁per ception s ▁of ▁the ▁stage ▁design ers ▁are ▁compatible ▁and ▁real istic . ▁They ▁are ▁usually ▁the ▁link ▁between ▁the ▁director ▁and ▁the ▁rest ▁of ▁the ▁company , ▁and ▁are ▁responsible ▁for ▁the ▁director ' s ▁vis ions ▁being ▁passed ▁down ▁to ▁each ▁actor ▁and ▁member ▁of ▁the ▁running ▁crew . ▁They ▁are ▁also ▁responsible ▁for ▁safety ▁and ▁running ▁an ▁order ly ▁back stage ▁area . ▁They ▁maintain ▁the ▁prompt ▁book ▁and ▁the ▁call ▁board , ▁to ▁which ▁re he ars al ▁schedule ▁notes ▁are ▁aff ixed ▁for ▁the ▁cast . ▁ ▁Stage craft ▁overall ▁has ▁to ▁address ▁the ▁various ▁short com ings ▁of ▁the ▁stage ' s ▁spatial ▁and ▁physical ▁limitations . ▁For ▁example , ▁the ▁stage ▁alone ▁cannot ▁be ▁expected ▁to ▁provide ▁wide ▁and ▁distant ▁v istas , ▁or ▁vast ▁spaces ▁where ▁arm ies ▁gather ▁or ▁huge ▁masses ▁of ▁people ▁con greg ate . ▁Natural ▁phen omena ▁such ▁as ▁th under st orm s ▁or ▁wind s , ▁that ▁are ▁often ▁part ▁of ▁the ▁drama , ▁cannot ▁be ▁re created ▁in ▁their ▁original ▁form . ▁Furthermore , ▁because ▁of ▁the ▁distance ▁involved , ▁it ▁is ▁difficult ▁for ▁actors ▁to ▁port ray ▁the ▁feelings , ▁t ensions ▁and ▁pass ions ▁of ▁their ▁characters ▁to ▁the ▁audience ▁with ▁much ▁distinct iveness . ▁ ▁It ▁is ▁for ▁these ▁reasons ▁that ▁special ▁techn ologies ▁and ▁techniques ▁have ▁been ▁developed ▁from ▁classical ▁times ▁on ward ▁to ▁supp lement ▁and ▁augment