nake ▁tips ▁back . ▁The ▁cycle ▁then ▁repe ats , ▁as ▁long ▁as ▁balls ▁remain ▁in ▁the ▁upper ▁res er voir ▁to ▁power ▁the ▁empty ing ▁of ▁the ▁bow l . ▁ ▁Autom aton ▁ ▁In ▁the ▁mechanism , ▁a ▁hum ano id ▁automat on ▁strik es ▁the ▁c ym bal ▁and ▁a ▁mechanical ▁bird ▁ch ir ps , ▁like ▁in ▁the ▁later ▁c uck oo ▁clock . ▁ ▁Pass age ▁of ▁temporal ▁hours ▁ ▁Another ▁innov ative ▁feature ▁of ▁the ▁clock ▁was ▁how ▁it ▁recorded ▁the ▁passage ▁of ▁temporal ▁hours , ▁which ▁meant ▁that ▁the ▁rate ▁of ▁flow ▁had ▁to ▁be ▁changed ▁daily ▁to ▁match ▁the ▁une ven ▁length ▁of ▁days ▁throughout ▁the ▁year . ▁To ▁accomplish ▁this , ▁the ▁clock ▁had ▁two ▁t anks . ▁The ▁top ▁tank ▁was ▁connected ▁to ▁the ▁time ▁indicating ▁mechan isms ▁and ▁the ▁bottom ▁was ▁connected ▁to ▁the ▁flow ▁control ▁reg ulator . ▁At ▁day break , ▁the ▁tap ▁was ▁opened ▁and ▁water ▁flow ed ▁from ▁the ▁top ▁tank ▁to ▁the ▁bottom ▁tank ▁via ▁a ▁float ▁reg ulator ▁that ▁maintained ▁a ▁constant ▁pressure ▁in ▁the ▁receiving ▁tank . ▁ ▁Modern ▁reprodu ctions ▁ ▁Several ▁modern ▁reprodu ctions ▁of ▁the ▁Ele ph ant ▁C lock ▁have ▁been ▁created ▁by ▁the ▁ 1 0 0 1 ▁In vent ions ▁organisation . ▁These ▁reprodu ctions ▁are ▁featured ▁as ▁part ▁of ▁the ▁ 1 0 0 1 ▁In vent ions ▁educational ▁science ▁shows ▁that ▁have ▁been ▁tour ing ▁around ▁the ▁world ▁since ▁ 2 0 0 6 . ▁During ▁a