tageofpainting,apumpwasputin.Then,allthepaintersintheneighbourhoodweredefeatedbyaseverediseasewhosecharacteristicwasaliketothatofabadburn.Anexpertphysicianwasinstructedtoattendtothevictimsandhandlethiscase.Hewasenthusiastic,buthedidn’tforeseethatitwasahardchallenge.Aftersimpleenquiry,heannouncedthatthepollutedpaintwastoblame.Butwithoutpositiveevidence,peoplesuspectedandrejectedhisview,sayingthetheoryheputforwardmadenosense.Beingmuchmorestrictwithhimself,hecontributedhimselftothecase.Apartfrommakingenquiries,hemadedetailedchartsandanalysedthedatacautiously.Finally,onclusion,linkingthediseasetotheradiuminthepump.Exposedtoradium,akindofradioactivematerialintheuniverse,peopleabsorbedradiationandgotsickimmediately.Spinningthepumpbackward,hetookawaytheradium.Thissimplemovementcuredallthevictims.