▁older ▁brother ▁Fritz . ▁Through out ▁their ▁lives ▁the ▁two ▁brothers ▁maintained ▁a ▁close ▁relationship . ▁ ▁Hein z ▁followed ▁in ▁his ▁older ▁brother ' s ▁foot steps , ▁studying ▁physics , ▁but ▁became ▁an ▁experimental ▁phys ic ist ▁instead ▁and ▁obtained ▁his ▁Ph D ▁under ▁the ▁famous ▁super con duct ivity ▁phys ic ist ▁Francis ▁Simon . ▁ ▁This ▁connection ▁also ▁gave ▁Hein z ▁the ▁opportunity ▁to ▁leave ▁Naz i ▁Germany . ▁Frederick ▁Lin dem ann ▁invited ▁Francis ▁Simon ▁to ▁join ▁the ▁Clar end on ▁Labor atory ▁at ▁the ▁University ▁of ▁Oxford ▁in ▁ 1 9 3 3 ▁supported ▁by ▁money ▁obtained ▁from ▁chemical ▁company ▁I CI . ▁When ▁Francis ▁Simon ▁did ▁he ▁brought ▁Hein z ▁London ▁as ▁his ▁assistant ▁as ▁well ▁as ▁Nicholas ▁Kur ti . ▁ ▁While ▁working ▁in ▁Oxford , ▁Hein z ▁shared ▁a ▁r ented ▁house ▁with ▁his ▁brother ▁Fritz ▁and ▁sister ▁in - law ▁Ed ith ▁where ▁together ▁the ▁brothers ▁developed ▁the ▁London ▁equations . ▁ ▁By ▁ 1 9 3 6 ▁the ▁money ▁that ▁had ▁fund ed ▁the ▁refuge e ▁scient ists ▁had ▁d ried ▁up ▁and ▁Lin dem ann ▁could ▁not ▁find ▁funds ▁to ▁offer ▁positions ▁to ▁them ▁and ▁many ▁others . ▁Hein z ▁was ▁in ▁a ▁junior ▁position ▁without ▁any ▁expectation ▁of ▁remaining ▁at ▁Oxford , ▁and ▁so ▁took ▁an ▁appointment ▁at ▁the ▁University ▁of ▁Br istol . ▁Fritz ▁held ▁out ▁for ▁a ▁position ▁at ▁Oxford ▁which ▁never ▁came ▁and ▁later ▁accepted ▁an ▁offer ▁by ▁the ▁Henri ▁Po inc ar é ▁Institute ▁in ▁Paris