▁and ▁econom ics ▁Category : Work s ▁originally ▁published ▁in ▁the ▁Journal ▁of ▁Law ▁and ▁Econom ics ▁Category : 1 9 6 0 ▁in ▁econom ics <0x0A> </s> ▁The ▁ele ph ant ▁clock ▁was ▁a ▁medieval ▁in vention ▁by ▁Al - J az ari ▁( 1 1 3 6 – 1 2 0 6 ), ▁an ▁Arab ▁engineer ▁and ▁invent or ▁of ▁various ▁clock s . ▁The ▁device ▁consisted ▁of ▁a ▁weight ▁power ed ▁water ▁clock ▁in ▁the ▁form ▁of ▁an ▁Asian ▁ele ph ant . ▁This ▁hor ological ▁technology ▁was ▁derived ▁from ▁earlier ▁Indian ▁clock s ▁and ▁Chinese ▁clock s . ▁▁▁ ▁In ▁China ▁clock ▁esc ap ement ▁mechanism ▁was ▁invent ed ▁by ▁the ▁poly math ▁and ▁Buddh ist ▁mon k ▁Y i ▁X ing ▁as ▁well ▁as ▁the ▁hyd ra ul ic ▁power ed ▁water w heel ▁and ▁water ▁clock ▁in ▁the ▁mechan ically - dri ven ▁and ▁rot ated ▁equ atorial ▁arm ill ary ▁sphere ▁of ▁the ▁ ▁poly math s ▁Z hang ▁H eng ▁and ▁Ma ▁Jun . ▁The ▁Ele ph ant ▁clock ▁had ▁some ▁design ▁differences ▁compared ▁to ▁earlier ▁Indian ▁and ▁Chinese ▁clock s ▁and ▁the ▁various ▁elements ▁of ▁the ▁clock ▁are ▁in ▁the ▁housing ▁( how d ah ) ▁on ▁top ▁of ▁the ▁ele ph ant . ▁▁ ▁Al - J az ari ▁upon ▁finishing ▁the ▁development ▁and ▁construction ▁of ▁his ▁Ele ph ant ▁clock ▁wrote : ▁" The ▁ele ph ant ▁represents ▁the ▁Indian ▁and ▁African ▁cult ures , ▁the ▁two ▁drag ons ▁represents ▁Chinese ▁culture