▁Hart mann , ▁German ▁engineering ▁manufact urer ▁( 1 8 0 9 – 1 8 7 8 ) ▁ ▁Sport ▁ ▁Ger hard ▁Hart mann ▁( born ▁ 1 9 5 5 ), ▁Aust rian ▁long - distance ▁runner ▁ ▁K arel ▁Hart mann , ▁Czech ▁ice ▁hockey ▁player ▁and ▁official ▁ ▁Robert ▁Hart mann ▁( ref eree ) ▁( born ▁ 1 9 7 9 ) ▁ ▁Wal dem ar ▁Hart mann , ▁( 1 9 4 8 ), ▁German ▁sports ▁journalist ▁ ▁F ict ional ▁characters ▁▁ ▁Er ica ▁Hart mann , ▁a ▁character ▁from ▁the ▁an ime / m anga ▁series ▁St rike ▁W itch es ▁ ▁Urs ula ▁Hart mann , ▁a ▁character ▁from ▁the ▁an ime / m anga ▁series ▁St rike ▁W itch es ▁ ▁G unn ery ▁Serge ant ▁Hart mann , ▁a ▁character ▁from ▁Stanley ▁Kub rick ' s ▁movie ▁Full ▁Metal ▁Jack et ▁ ▁See ▁also ▁▁ ▁Hart mann ▁( cr ater ) ▁ ▁Hart mann ▁House ▁Pre par atory ▁School , ▁an ▁independent ▁prepar atory ▁school ▁for ▁boys ▁in ▁Har are , ▁Z imb ab we ▁ ▁Hart mann ▁Ne ur on , ▁innov ative ▁synth es izer ▁ ▁Hart mann ' s ▁Solution , ▁a ▁solution ▁for ▁int ra ven ous ▁administration ▁ ▁Hart mann ' s ▁operation ▁ ▁Hart mann ▁number , ▁ratio ▁of ▁elect romagnet ic ▁force ▁to ▁the ▁vis c ous ▁force ▁ ▁Hart mann ▁pipeline , ▁a ▁Unix ▁software ▁pipeline ▁named ▁after ▁John ▁Hart mann , ▁Dan ish