Please answer the following question: What type of details about stephen timoshenko can be gathered from the following bio? Bio: stepan prokopovych tymoshenko -lrb- , -rrb- -lrb- december 22 , 1878 -- may 29 , 1972 -rrb- , was a russian empire and united states engineer of ukrainian origins . he is believed to be the father of modern engineering mechanics . a founding member of the ukrainian academy of sciences , timoshenko wrote seminal works in the areas of engineering mechanics , elasticity and strength of materials , many of which are still widely used today . having started his scientific career in the russian empire , timoshenko emigrated to yugoslavia during the russian civil war and then to the united states .
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