Q:Facts: - death place: newport , rhode island , united states - caption: alexander dallas bache - death date: 17 february 1867 - field: physics - birth date: 19 july 1806 - name: alexander dallas bache - image size: 250px - nationality: american - image: alexander dalls bache pers0117.jpg - birth place: philadelphia , pennsylvania , united states Based on these bullet points, write a short biography describing the life of alexander dallas bache .
A:
alexander dallas bache -lrb- july 19 , 1806 -- february 17 , 1867 -rrb- was an american physicist , scientist and surveyor who erected coastal fortifications and conducted a detailed survey mapping of the united states coastline .