Mezue ahịrịokwu na-esonụ: Hess gbapụrụ na Switzerland nwa oge mgbe mkpochapu nke
1848 nke obodo. Ọ ga-agakwa mba ọzọ n'oge agha Franco-Prussian nke 1870-71. N'afọ ndị 1850 Hess mikpuru onwe ya n'ịmụ sayensị okike ma nweta, n'ụzọ mmụta onwe onye, ntọala sayensị maka echiche ya.