▁his ▁bi ograph ers , ▁J ára ▁C im r man ▁made ▁extensive ▁contributions ▁in ▁many ▁areas : ▁▁ ▁He ▁proposed ▁the ▁Pan ama ▁Canal ▁to ▁the ▁U . S . ▁government , ▁while ▁compos ing ▁a ▁libre tto ▁for ▁an ▁opera ▁of ▁the ▁same ▁name . ▁▁ ▁He ▁reform ed ▁the ▁school ▁system ▁in ▁Gal icia . ▁▁ ▁With ▁Count ▁Ze ppel in ▁he ▁constructed ▁the ▁first ▁rig id ▁air ship ▁using ▁Swedish ▁steel ▁and ▁Czech ▁w icker ▁( the ▁w icker ▁being ▁for ▁the ▁cabin ). ▁▁ ▁He ▁was ▁deport ed ▁from ▁Germany ▁as ▁an ▁an arch ist , ▁his ▁personal ▁documents ▁carrying ▁a ▁note ▁that ▁he ▁was ▁" a ▁source ▁of ▁un rest ." ▁This ▁led ▁the ▁Swiss ▁company ▁Om ega ▁to ▁offer ▁him ▁a ▁job ▁to ▁improve ▁the ▁un rest ▁- ▁balance ▁wheel ▁- ▁for ▁their ▁Pic colo ▁line ▁of ▁ladies ▁watch es . ▁( N . B . ▁the ▁Czech ▁and ▁German ▁words ▁for ▁a ▁watch ' s ▁balance ▁wheel ▁(" ne p ok oj ", ▁" Un ru he ") ▁mean ▁" un rest .") ▁While ▁in ▁Switzerland , ▁he ▁introduced ▁( and ▁pract ised ▁for ▁some ▁time ) ▁the ▁field ▁of ▁obst et rics . ▁▁ ▁He ▁conducted ▁investig ations ▁into ▁the ▁life ▁of ▁can n ib al istic ▁tribes ▁in ▁the ▁Ar ctic ; ▁and ▁once , ▁while ▁running ▁away ▁from ▁the ▁fur ious ▁tribe , ▁he ▁missed ▁the ▁North ▁P ole ▁by ▁just ▁seven ▁meters , ▁thus ▁almost ▁becoming ▁the ▁first ▁human ▁reaching ▁the