▁animals . ▁ ▁Career ▁as ▁" prof essor ▁of ▁technology " ▁ ▁After ▁this ▁public ▁demonstr ation ▁Len orm and ▁devoted ▁himself ▁to ▁establish ing ▁the ▁science ▁of ▁" p ure ▁technology ". ▁To ▁this ▁end , ▁he ▁first ▁became ▁a ▁Car th us ian ▁mon k , ▁as ▁the ▁monaster y ▁in ▁Sa ï x ▁near ▁Cas tres ▁allowed ▁him ▁to ▁continue ▁his ▁" prof ane " ▁studies . ▁When ▁during ▁the ▁French ▁Revolution ▁he ▁had ▁to ▁ren ounce ▁his ▁priest hood ▁and ▁marry , ▁he ▁moved ▁to ▁Al bi ▁to ▁teach ▁technology ▁at ▁a ▁college ▁newly ▁founded ▁by ▁his ▁father - in - law . ▁In ▁ 1 8 0 3 ▁he ▁moved ▁to ▁Paris ▁where ▁he ▁obtained ▁a ▁job ▁at ▁the ▁exc ise ▁office , ▁part ▁of ▁the ▁fin ance ▁min istry . ▁During ▁his ▁time ▁at ▁the ▁exc ise ▁office , ▁Len orm and ▁started ▁publishing ▁in ▁technology ▁journ als ▁and ▁file d ▁pat ents ▁for ▁a ▁p addle ▁boat , ▁a ▁clock ▁successfully ▁installed ▁at ▁the ▁Paris ▁Opera ▁and ▁a ▁public ▁light ing ▁system . ▁When ▁he ▁was ▁removed ▁from ▁his ▁job ▁in ▁ 1 8 1 5 , ▁Len orm and ▁got ▁involved ▁even ▁more ▁in ▁publishing , ▁first ▁establish ing ▁Les ▁ann ales ▁de ▁l ’ indust rie ▁nationale ▁et ▁étr ang ère ▁( The ▁Ann als ▁of ▁National ▁and ▁Foreign ▁Indust ry ) ▁and ▁Le ▁Mer c ure ▁techn ologique ▁( The ▁Techn olog ic ▁Mercur y ), ▁and , ▁starting ▁in ▁ 1 8