Rangarira ndima iri pasi apa uye wozopindura mubvunzo pashure mumutauro mumwe chete sechikamu: Passage: Panguva yeAmerican Civil War, sezvo teregirafu motokari yakawedzera, tsika Grove sero kuti abvise chepfu senitrogen dioxide (NO2) hutsi vakava kuwedzera ngozi utano, uye sezvo telegraphs akava zvikuru kunzwisisa, kudiwa kugara voltage akava dzinonetsa.
Daniell masero