Research engineer P. I. Tolmachev from the pleiad of academician A. P. Karpinsky

The significance of the topic is determined by an important historical and cultural event: Syktyvkar is expecting the unveiling of a monument to the President of the Academy of Sciences of the USSR academician A. P. Karpinsky in summer 2025. He visited Syktyvkar as head of the Pechora Brigade of the Academy of Sciences of the USSR in 1933 to evaluate the resources of the region. The article characterises the professional career and life journey of the radiochemist P. I. Tolmachev, a representative from the family of the Karpinsky mining engineers. It highlights the influence of a number of prominent scientists on the formation of his character, professional qualities, as well as his choice of occupation. For example, academician A. P. Karpinsky, who was an own grandfather of P. I. Tolmachev, had a principal impact on the formation of his character. The choice of profession was determined by academician V. I. Vernadsky, who shared the moral views of young Tolmachev. Academician A. E. Fersman submitted his article for publication in the reports of the Academy of Sciences of the USSR. Academician V. G. Khlopin appreciated P. I. Tolmachev’s diligence and extraordinary mental capabilities demonstrated in works on the radium deposits, published several co-authored papers and recommended to use the accumulated experience in radiochemical production in the Komi ASSR. Under the influence of his family, the scientific environment, and the planet-scale science development level, P. I. Tolmachev became a highly qualified research engineer. The industrial products from Ukhta, where Pavel I. worked for many years, contributed to the victory in the Great Patriotic War.